Saturday, December 19, 2020

Final Reflection

This course has been one of my favorite courses of nine this term in the program. I especially liked the seminal work in mathematical education literature that we read throughout the course. The one I will remember most fondly as I enter my teaching career is our very first one, "Relational Understanding and Instrumental Understanding" by Skemp (1976). The distinction between these two ways of understanding cannot be unseen when teaching and I hope to foster relational understanding wherever applicable. Furthermore, I found the three assignments useful for improving my math teaching. The first microteach had me thinking about my general teaching vibe. The second microteach had me thinking about timing in teaching. The third assignment, the development of a unit plan, was the most useful because I will put it into practice during the long practicum. The unit plan was one of my strongest assignments in any course this term where my assignment went from 300 words in the brainstorming stage to over 4000 words in the completed draft. I am excited to teach these classes after spending so much time building my own excitement in developing them.

The main idea I have faced in this course is how my learning experiences have shaped my (starting) teaching strategies. I especially reflected on this notion through listening to our wonderful guest speaker in the latter portion of the course. I am comfortable to teach in ways I was taught, and in ways I have developed over the past few years in TA and ESL-instructor roles. I strive to continue to tweak my strategies through engaging with PD, literature, and colleagues.

I have three suggestions to make this course even better in future years, especially if it is to be fully online again. I will describe them in the "red/yellow/green traffic light" formative feedback format. Red: I enjoyed writing the blog, but the only feedback I got throughout the term was when a post was incomplete. I would have liked to receive acknowledgment for some of the work I completed prior to the end of the course. Yellow: We had some opportunities to connect with other blogs, but I would have liked more opportunities to develop discussions on other posts. Green: I liked the math party as the the final class. I hope this continues for future students in this terrific class for future math teachers. It was great to foster the creative and the artistic throughout the activities in this course, and the closure in the last class was a testament to that.

Monday, December 14, 2020

Music and Math

My 'show and tell' for our last class is a collection of five music recommendations that lend well to mathematical thinking. I think there is a large overlap in the Venn diagram of the musically and mathematically inclined. As an aspiring musician and math teacher, I hope to bring music into my teaching where I can. I know students connect with music in one way or another.


Caribou. This is the stage name for Canadian electronic artist, Dan Snaith, who holds a PhD in mathematics. I wonder how his mathematical thinking is manifested in his music. He started recording and releasing his music following his graduate studies.

 

Protest the Hero. They are a Canadian progressive metal band. They are creative with unconventional time signatures. There is a sub-genre called mathcore, which is interesting for the math in the the odd time signatures and rhythmic patterns, however I don't find this music very listenable. Protest the Hero has some listenable music, to my ear.


Karnivool. This is another metal band, that also explores various time signatures. They are from Australia.


Philip Glass. He is a minimalist composer, who is best-known for his solo piano music, however he has also written many film scores as well as an opera called "Einstein on the Beach".

 

Tigran Hamasyan. I save the best (at least in my opinion these days) for last. There are similar approaches to those in mathcore, however the music is predominantly minimalist piano music like that of Philip Glass. He writes pieces in the simplest of key signatures (4/4, where each measure has four beats and the quarter note is one of said beats) that sound remarkably complex. One example is 'Etude No. 1' where the left and right hand play out of sync from each other an only line up sync up a few times throughout the piece.

 

In summary, any music can be discussed in a mathematical concept and I have chosen these five for their uniqueness and immediate connection to math. This post has just touched on math and music in relation to time signatures, however there are plenty of other opportunities to discuss the mathematical meanings in music such as in pitch, timbre, and polyrhythms.

Sunday, December 6, 2020

Unit Plan

Unit Plan Overview

Algebra, Functions, and Equations


This post has been edited between December 6 and December 20 to meet the course requirements and to respond to feedback.

 

Teacher Candidate: Jeff Hamilton

School: Semiahmoo Secondary

Class: IB Math 11 (Standard Level)

Students: 15–25 (TBD)

Duration: Five 135-minute classes/week for first 4 weeks of fourth quarter


Preplanning Questions


This will be a large unit for grade 11 students, but I stand by the recommendations of the textbook because I believe in emphasizing the links between these five chapters as they are taught over the four weeks before moving onto the next topic. It will benefit students to be assessed on these topics together as there are many links, which in turn strengthen the material from each section. The textbook encourages these five chapters to be considered part of the first theme of IB SL math in the two-year course students take during their diploma program. In a way this is like a midterm university experience and I hope to incorporate many non-traditional teaching strategies to provide students with a unique learning journey as well as to provide the experience for what university studies will feel like. Like much of my work in the BEd program thus far, I strive to take the best teaching strategies from secondary and university education and put it into practice in the secondary classroom.


Why do we teach this unit?

This unit is an important development and extension from skills in algebra and linear equations of earlier grades in high school. This course bridges into calculus and integration, and this unit is an important transition to get to such ubiquitous applications of mathematics. In this unit, we discover the relationships of equations beyond lines, namely in parabolas, with their extensions to exponential growth and decay. Topics in the unit will better connect students to the worlds around them with intentionality by the teacher to demonstrate the beauty in the topics. Functions at a glance seems like a dull new thing to learn, however the very nature of representation an equation by the relationships of its variables was once a groundbreaking concept. And this idea can still be groundbreaking to our students, who were prealgebraic just a few years earlier, through demonstrating the applications and art that functions present.


What mathematics projects connect to this unit?

I have two projects I would like to include in this unit.

  1. Math + Art Assignment: Building off the previous question in why we teach this unit, a way to demonstrate the beauty of the equations we study is to put on our artist hats express these equations in a way to show our artistic expression. Desmos has a global math art contest, which I would adapt to the first project of this unit. In an earlier class, students will have some time to research artwork they like and make sketches they feel like drawing, before we introduce that we will then draw this artwork using equations throughout the unit. What equations fit this artwork? Students may of course chose to create something else on Demos. There are three parts to this project:
    • Proposal of piece: This is the context and motivation behind the artwork they wish to produce with equations we learn in the unit. (Week 1)
    • The piece: This is the two-dimensional final product on Desmos, which students will submit along with the list of equations (and the bounds) they used to produce it. (Week 2)
    • Reflection: Students will have the opportunity to share their work with their peers and they will write a brief reflection of what they learned about equations and their artwork. (Week 3)
  1. Group Tutorial: This unit covers five chapters from the textbook, which students will have access to. Each chapter will be covered in 2–4 lessons. To promote leadership and communication skills, students will lead a 30-minute tutorial in groups of 3–5 (depending on the class size) for one of the five chapters. This will happen on the final day of the chapter at the beginning of class. Groups will be assigned in the first week. The rationale behind this project is promote communication skills while showing students to take ownership over study habits because they will feel accountable because peers are counting on them. Our classroom will frequently use vertical erasable surfaces, and the groups are encourages to lead their tutorial in this manner. They may chose which problems to cover.  There are three pieces to this project:
    • Tutorial overview: The group will check in with me the day before their tutorial with their lesson plan.
    • Delivery: On the day of their tutorial, they will have 30 minutes to review the chapter. They must include a link to society and a historical fact for 'this day in math history'. The historical fact in math may be related to society or science as long as it relates to math. Examples include birthdays of mathematicians and an overview of their work or the date of a publication of a paper or book and why it is significant. My first three classes, the reviews of grades 8–10 math, will be structured in this manner so the students have an idea what they can do with their time.
    • Reflection: Students will perform self-evaluations and peer-evaluations.

 

How will learning be assessed?

There will be plenty of opportunities for students to demonstrate their learning in situations low-stake settings where mistakes are encouraged. Students will be able to build off of these opportunities so they may demonstrate their learning in later assessments. The following provide an overview of the formative and summative assessments of the unit.

Formative Assessments:

  • Review activities and reflections
  • Non-graded quizzes: There will be one on each of the first three days of review and at least one per chapter.
  • The two projects each have three parts, as outlined above, and parts 1 and 3 will be formative. The first guides them towards their second, which is summative, while the third guides them towards their next project or assessment.

Summative Assessments:

  • Friday quizzes (weeks 2 and 3)
  • Delivery of group tutorial (week varies by group)
  • The submission of their piece for the math + art assignment (week 3)
  • Final test (week 4)


Elements of Unit Plan

 

The course in the quarter system lasts about 9 weeks. The first 4 weeks will be taught by me and I will be responsible for 50% of their course grade. I will provide my 4-week overview to the students on the first day, so they know what/when they are learning and being assessed.

 

Tentative Breakdown:

Note: These are just the summative assessments. Formative assessments will be nearly every day, with larger ones outlined in the projects overview above.

  • 5% – Quiz 1 (Friday of Week 2)
  • 10% – Art Piece (Wednesday of Week 3)
  • 10% – Group Tutorial (depends on group)
  • 5% – Quiz 2 (Friday of Week 3)
  • 20% – Unit Test (Friday of Week 4)

 

This course is similar to pre-calculus 11 in the BC curriculum.


Big Ideas

  • Algebra allows us to generalize relationships through abstract thinking
  • The meanings of, and connections between, operations extend to powers, radicals, and polynomials
  • Quadratic relationships are prevalent in the world around us


Curricular Competencies

Key one for each of the four is included

  • Reasoning and modeling: think creatively and with curiosity and wonder when exploring problems
  • Understanding and solving: develop, demonstrate, and apply conceptual understanding of mathematical ideas through play, story, inquiry, and problem solving
  • Communicating and representing: take risks when offering ideas in classroom discourse
  • Connecting and reflecting: connect mathematical concepts with each other, with other areas, and with personal interests


Content Objectives

  • Real number system
  • Powers with rational exponents
  • Radical operations and equations
  • Polynomial factoring
  • Rational expressions and equations
  • Quadratic functions and equations
  • Linear and quadratic inequalities


Adaptations for English language learners

  • Vocabulary for each chapter will be hung up around the room
  • Students will have opportunities to teach other formally and informally, which gives them exposure to using the mathematical language prior to larger assessments
  • Word problems and activities will have intentional language such that students do not get stuck on a non-math word they do not know (additionally, people represented in word problems and activities will represent the many minds of math around the world)


Materials

  • Whiteboards and markers
  • Document camera
  • Projector
  • Textbook
    • Ch 1: Quadratic Functions
    • Ch 2: Exponents and Logarithms
    • Ch 3: Algebraic Structures
    • Ch 4: The Theory of Functions
    • Ch 5: Transformations of Graphs
  • Course website (to accommodate for students learning from home if applicable)
  • Smartphones + WiFi (students will be permitted to use their own for specific activities)
  • Cribbage boards
  • Children's basketball net + ball


The unit contains 20 lessons, which commence at the start of the quarter. This is why the first week is largely dedicated to review of math the students have learned in high school thus far. Taking the time to work through these quizzes will show myself and the students where their weaknesses lie. The following weeks list the general topics for each lesson and some the key assessments. Furthermore, there will be a "puzzle of the week" introduced each Monday after the halfway break and reviewed on Friday at the end of class.


Week 1: Review + Introduction

Lessons 1–5

Monday: Grade 8 Review (quiz not recorded)

  • First hour of class is orientation to our learning environment with emphasis on how we will participate in a safe space and use collaboration with the whiteboards to make our mistakes before we are assessed
  • Each class will have a 15 minute break at the midway point where students may do what they wish (I will encourage them to stand up and walk around to get blood flowing to their legs)
  • Introduce puzzle of the week
  • The final hour of this class will begin with an online 20-question quiz on grade 8 math
  • The remainder of the class will be working through further problems from grade 8 math

Tuesday: Grade 9 Review (quiz not recorded)

  • This class will begin with an online 20-question quiz on grade 9 math
  • The remainder of the class will be working through further problems from grade 9 math
  • During independent work, grade 8 math from Monday may be revisited

Wednesday: Grade 10 Review (quiz not recorded)

  • This class will begin with an online 20-question quiz on grade 10 math
  • The remainder of the class will be working through further problems from grade10
  • During independent work, grade 8 and 9 math from Monday and Tuesday may be revisited

Thursday: Quadratic Functions 1

  • Recap of grades 8–10 math through a Kahoot
  • Sections 1 and 2 of chapter

Friday: Quadratic Functions 2

  • Sections 3 and 4 of chapter
  • Solution to puzzle of the week
  • Art activity (see detailed lesson plan)

 

Week 2: Quadratic Functions + Transformations of Graphs

Lessons 6–10

Monday: Quadratic Functions 3

  • Sections 5 and 6 of chapter
  • Introduce puzzle of the week
  • Sections 7 and 8 of chapter
  • Group 1 checks in with me regarding their facilitation

Tuesday: Quadratic Functions 4 (group 1 presents)

  • Group 1 leads tutorial to begin class
  • Teacher-lead review for second half including 5-question non-recorded quiz which students will peer-evaluate (0 or 1 for each question)
  • Inquiry activity with quadratic functions in society

Wednesday: Transformation of Graphs 1

  • Sections 1 and 2 of chapter
  • Sections 3 and 4 of chapter
  • Group 2 checks in with me regarding their facilitation

Thursday: Transformation of Graphs 2 (group 2 presents)

  • Group 2 leads tutorial to begin class
  • 5-question non-recorded quiz which students will peer-evaluate (0 or 1 for each question)
  • Outdoor learning activity for second half (see detailed lesson plan)

Friday: Quiz (recorded)

  • Quiz on "quadratic functions" and "transformations of graphs" in 30 minutes
  • Students who finish early may work on their solution for the puzzle of the week
  • Solution to puzzle of the week
  • Second half of class will be game time – today students will learn how to play cribbage (students who already know how to play will have the opportunity to teach their peers) and we will do this on Fridays in weeks 3 and 4 as well
  • The math involved with playing cribbage does not directly relate to the course content but it develops mathematical thinking. Games on Fridays is an incentive for students to get through their work during the week.

 

Week 3: Exponents and Logarithms + Algebraic Structures

Lessons 11–15

Monday: Exponents and Logarithms 1

  • Sections 1 and 2 of chapter
  • Sections 3 and 4 of chapter
  • Introduce puzzle of the week
  • Case study on virus transmission and exponential growth
  • Group 3 checks in with me regarding their facilitation

Tuesday: Exponents and Logarithms 2 (group 3 presents)

  • Group 2 leads tutorial to begin class
  • 5-question non-recorded quiz which students will peer-evaluate (0 or 1 for each question)

Wednesday: Algebraic Structures 1

  • Sections 1 and 2 of chapter
  • Sections 3 and 4 of chapter
  • Inquiry activity to establish which concepts are arbitrary and which are necessary
  • Group 4 checks in with me regarding their facilitation

Thursday: Algebraic Structures 2 (group 4 presents)

  • Group 2 leads tutorial to begin class
  • 5-question non-recorded quiz which students will peer-evaluate (0 or 1 for each question)
  • Formal review for quiz on content covered this week

Friday: Quiz (recorded)

  • Quiz on "exponents and logarithms" and "algebraic structures" during first 30 minutes
  • Solution to puzzle of the week
  • Cribbage during second half of class

 

Week 4: The theory of Functions + Recap + Assessment

Lessons 16–20

Monday: The Theory of Functions 1

  • Sections 1 and 2 of chapter
  • Introduce puzzle of the week
  • Sections 3 and 4 of chapter
  • Group 5 checks in with me regarding their facilitation

Tuesday: The Theory of Functions 2 (group 5 presents)

  • Group 2 leads tutorial to begin class
  • 5-question non-recorded quiz which students will peer-evaluate (0 or 1 for each question)
  • Debrief on facilitation

Wednesday: Review 1

  • Formal review session
  • Students may request questions and topics to be covered
  • Handout for independent or group review
  • Debrief on math and art

Thursday: Review 2

  • Learning games for review (see detailed lesson plan)

Friday: Unit Test (recorded)

  • Unit test for first half of class
  • Solution to puzzle of the week 
  • Final week of cribbage
  • Debrief on strategy and mathematical thinking in the game


Week 5 will begin with sequences and series or binomial expansion. Furthermore, the content covered this unit will reappear in May of 2022 when students completing the IB diploma program write their final exam. I hope to leave students with useful resources to hold onto when they do their final revisions later on.


Resources:

Mathematics Standard Level for the IB Diploma. Cambridge. 2012. 

Menu Math

Desmos


Ideas to consider following discussion with peers: 

  • Math assignment with board game or card game (Ex. cribbage and function for points)
  • Peer-to-peer teaching (to improve communication skills and understanding)
  • Outdoor education (link content to theory of knowledge and place-based learning, outdoor teaching with small whiteboards, and discussing the outdoors as they relate to mathematical thinking)
  • Math art (STEAM)
  • Math movie (like Imitation Game, but one that applies to this unit)

 

Feedback from peers:

  • Build your own stock portfolio (limitations on deterministic model)
  • Virus transmission and exponential growth (modeling)
  • Kinematics with quadratics outside (videotracking software available at https://physlets.org/tracker/)
  • Literature to support "why are we learning this?" and "why are we learning it this way?" 
  • Students will love playing cribbage

 

Detailed Unit Plans 


I hope to implement the thinking classroom as the normal for the teaching of this unit. I used it for my two lessons I taught during the short practicum, and before February I would like to read Professor Liljedahl's book to better prepare my lesson plans. I am fortunate that the math classroom I will be teaching in is equipped with three walls of vertical erasable surfaces.


The following three unit plans are not in the traditional lecture/exercise/homework format.

 

Lesson 5: Quadratic functions 2

Note: The first 60 minutes of class will be conducted in the Liljedahl thinking classroom environment. I will continue working through the material in Chapter 1: Quadratic Functions. This will be our fifth day in the quarter system together, which will be plenty of time for the students to become oriented with our classroom dynamics, to dig into the review of grades 8–10 math, and to see what the first few sections of the first chapter are like. They will be ready to get their first exposure to our first project, in STEAM, which will take place in a non-traditional format, in the final hour of lesson 5.

Topic: An Introduction to the Art of Math

Pedagogical Goals: 

  • Get students out of the classroom
  • Put emphasis on connecting artistic expression and mathematical thinking
  • Have students thinking about why they like math and how they think about math

Preparation:

  • At the end of lesson 3, students will post a 250-word response to the online forum as to what the think a function is and to write what functions they know
  • At the end of lesson 4, students will be asked to write about their favorite visual artwork (this could be album artwork if they are interested in music, architecture, or sculptures – it does not just apply to paintings, drawings, etc.), which will be posted in another 250-word response
  • Connect with an art teacher for a senior art class to link our hours of teaching together for this day as the final hour of the first Friday of quarter 4 will take place in the same space

Assess Background Knowledge: 

  • The two discussion posts from lessons 3 and 4 assess background knowledge in math and art
  • Review of grades 8–10 inherently features lots of work with functions and this is another way to get a feel for where students are at with knowledge of functions

Materials:

  • Artwork (from the art class, either made by the students or presented by the students in that class)
  • Means to take notes (paper or digital) 
  • Means to make sketches (paper or digital)
  • I encourage a physical notebook for math, especially for material connecting to art

Timing: 60 minutes

  • Art students open class with a welcome message (5 minutes)
    • They will say some rules of the classroom and encourage participation from the guests
    • The art teacher and myself will write an overview of the whole activity
  • Groups from tutorial facilitation will work with small groups of art students (15 minutes)
    • There will be five groups with 3–5 art students and 3–5 math students in each group
    • Students will be asked to think about the how the artwork can be represented with functions
    • Students will be asked to prepare questions to ask their peers in the art class 
    • Math students will bring our puzzle of the week for the art students to think about in groups
    • Our puzzle of the week will be accessible to non-math students
  • We will then go to the full group (15 minutes)
    • One math and one art student from each group comes to the front of the class to debrief their small group discussion
    • Teachers may ask further questions to guide discussion to the connections between mathematical and artistic thinking
  • Math puzzle debrief (5 minutes)
  • Final debrief on mathematical and artistic thinking (10 minutes)
    • Students will share what they learned about the other subject
  • Reflection (10 minutes)
    • Students will have the time to write out their reflection (proposal draft) for their math + art project
    • During this time, the two teachers will share ideas about how the class went (they will make a collaborative document to express what worked well, what didn't, and what they could do better next time)
    • Students will participate in a closing activity where each student summarizes the activity with one word

Learning assessment:

  • Students will hand in their reflection/proposal draft with links to functions thus far
  • This will be the first step towards the first part of their math + art project (outlined above)

Feedback:

  • Students will be asked to fill out an anonymous Google form with the following queries:
    • What did you like about today's activity?
    • What didn't you like about today's activity?
    • What could we do better next time?

 

Lesson 9: Transformation of graphs 2 

Note: The first 60 minutes of class will be conducted in the Liljedahl thinking classroom environment. Group 2 will have lead their tutorial and we will have completed our five-question non-recorded quiz for students to see how they are doing with this chapter of the textbook. The next 75 minutes will be conducted outside and follow the subsequent details.

Topic: Place-Based Learning in Math

Pedagogical Goals:

  • Get students out of the school to give them an exposure to outdoor learning
  • Place emphasis on environmental appreciation and provide links to social justice which support the environment
  • Touching on Indigenous perspectives through place-based learning

Preparation:

  • I would like to read "Braiding Sweetgrass" by Robin Wall Kimmerer before February to develop my oration around Indigenous perspectives and place-based learning  
  • At the beginning of class, students will share examples of quadratic equations in any form on their portable whiteboards
  • I will prepare the problems we will do in the activities

Assess Background Knowledge

  • Group 2 will have completed their tutorial at the beginning of class and we will have done a five-question quiz
  • I and the students will have an idea of how comfortable they are with the content
  • Students will demonstrate understanding in material through completing the games

Materials:

  • Class set of portable whiteboards with dry erase markers 
  • Excerpt from "Braiding Sweetgrass", of which I will read an excerpt that relates to mathematical thinking in the outdoors in relation to Indigenous perspectives

Timing: 75 minutes

  • Class break (15 minutes)
    • As usual, students will have their 15-minute break, however this time they will be independently walking around the nature behind the school 
    • They will be asked to take one picture that connects their mathematical thinking to nature and they may approach this prompt however they wish
  • Debrief of finding place activity (15 minute)
    • Students will share how they felt in walking around
    • Students will share why they chose the photo they captured 
  • Relay game (30 minutes)
    • In teams, we will play Telustrations using equations and graphs of quadratic equations as the prompts
    • I will tell the first team member what to draw (or I will provide a sketch of which they will deduce the equation)
    • Other team members will be located around the school ground (but not too far away)
  • Debrief (15 minutes)
    • Students will discuss the activity and learning in the outdoors
    • I will read a story of place, the chosen excerpt from "Braiding Sweetgrass"

Learning Assessment:

  • I will see how students do in going between graphs and equations
  • Students will reflect on their learning through debrief activities

Feedback:

  • Students will be asked to fill out an anonymous Google form with the following queries:
    • Would you like to have more math classes taught outside? Yes/No
    • Why or why not?

 

Lesson 19: Review  

Note: Two games will be played through which students will review the unit content.

Topic: Unit Review through Mathketball and Jeffpardy

Pedagogical Goals:

  • Engage the full class in implementing vertical erasable surfaces in our thinking classroom
  • Students will work through problems in groups and then on their own
  • Utilize a gamified approach to keep up participation

Preparation:

  • I will read "Building Thinking in Mathematics" by Peter Liljedahl before February so that I have further ideas for using the whiteboards
  • Students will complete my formal review activities from lesson 18 and these will guide the questions I use in the games as I prepare them for the final test
  • The top team in Mathketball and the top three scorers in Jeffpardy will receive journals or math puzzles (their choice)

Assess Background Knowledge

  • The nature of this class is to assess content from throughout the unit over the four weeks
  • Challenging questions will connect topics together and students will see which chapters the questions came from should they wish to further revise that specific area

Materials:

  • Whiteboards (for groups to work on)
  • Projector (for myself to display the problems)
  • Children's basketball net and ball

Timing: 135 minutes

  • Part 1 – Mathketball (45 minutes)
    • Teams (from tutorial groups) will work through 15 longer problems on the board
    • Each team will have a section of the board to work on
    • Problems will be given out randomly (so that groups cannot see the work of the same problem on another board)
    • Once a problem is completed they will ask me to inspect it
    • If it is correct on the first try, they receive the next problem
    • They receive hints until they get it right
    • Correct on the first try means they get one shot on the net at the end of the activity and if they require hints, they do not get a shot (additionally, if they pass on the question without having time to come back to it – they lose a shot)
    • After 30 minutes, I will review the solutions to the problems
    • Groups will then get to take their turns taking their shots (up to 15 per group)
    • The winning time is the team that makes the most shots
  • Break (10 minutes)
  • Part 2 – Jeffpardy (45 minutes)
    • This is just like Jeopardy, however each of the categories corresponds to one of the five chapters
    • There will be five questions increasing in difficulty for each chapter 
    • They will enter their answer their score in an online format like Kahoot so they have the incentive to work quickly
    • The winners are the top three scores on the Kahoot
  • Break (10 minutes)
  • Part 3 – Independent work (25 minutes)
    • Students will work independently on that which they find the most challening
    • The classroom will be organized by groups from the tutorials, so they may serve as experts to be asked about questions from different chapters by their peers (mini office hours)
    • I will walk around the room and answer questions the groups cannot answer to their peers

Learning Assessment:

  • The unit test of the next day is summative
  • Today's activity is formative to guide their studying

Feedback:

  • Students will be asked to fill out an anonymous Google form with the following queries:
    • Did you enjoy participating in Mathketball and Jeffpardy? Yes/No/Somewhat
    • Do you feel more prepared for tomorrow's test? Yes/No/Somewhat  
    • Do you have any comments on today's review activities? 

 

Tuesday, December 1, 2020

Hewitt (1999)

All students need to be informed of the arbitrary by someone else.

As this excerpt states, that which is arbitrary needs to be informed to the students. This includes the names of things (ex. a four sided shape is called a square), the symbols we use (which have previously been agreed upon), and the conventions we follow (such as why the SI units have the values they have). Students must memorize the association between word and thing it represents. The arbitrary lies in the realm of memory.

Some students can become aware of what is necessary without being informed of it by someone else.

As this excerpt suggests, that which is necessary does not need to be informed. It just is. So it goes. These things can be worked out based on properties and relationships. Relating to previous readings in this course, we require some of those from the arbitrary to explain the necessary. The necessary lies realm of awareness.

In teaching lessons and units, the arbitrary and necessary are interleaved and ubiquitous throughout our teaching. We know how to draw that line, but our students are new to the content, and learning may be improved with greater intentionality on how we introduce different things to our students. For instance, we may follow inquiry-based activities for students to discover arbitrary things using their own vocabulary before we tell them what the word society has agreed upon is. As the last excerpt suggest, the arbitrary is unavoidable. However, I would like to place emphasis on the necessary in terms of assessing how my students are learning. This may include not penalizing arbitrary-related mistakes or by including more visuals so students know the square is the square and not another polygon. As the reading suggests, we can divide curriculum into that which cannot be worked out (might be so), the arbitrary, and can be worked out (must be so), the necessary – it is important for students to also understand which is which.

There is usually a historical context to where the arbitrary things come from. One way to combat the cognitive overload students may experience from dealing with the arbitrary is to include those historical contexts. There is no reason why 360 degrees makes a full circle, but if we teach that the Babylonions used a system based on 60, this may help.

The arbitrary has to be memorized, but what is necessary is about educating their awareness.

Sunday, November 29, 2020

TPI Results

The Teaching Perspectives Inventory (TPI) is like a personality test, where teachers better understand their views and perceptions about teaching. There are five perspectives which correspond to different questions from the test:

  1. Transmission
  2. Apprenticeship
  3. Developmental
  4. Nurturing
  5. Social Reform

Below is a screenshot summarizing my results:

The higher the score, the more I foster this view in my teaching. From highest to lowest score across the five perspectives, I have the following: 
  1. Nurturing
  2. Developmental and Social Reform
  3. Transmission and Apprenticeship

With Nurturing well at the top of my results, I will further look into what the TPI says about this.

Effective teaching assumes that long-term, hard, persistent effort to achieve success comes from the heart, not the head.

I am happy that the TPI informs this as my top perspective because this is central to my teaching philosophy.

Sunday, November 22, 2020

Market Scales Puzzle

In my scribbles, the puzzle came down to the following question: What are four numbers in which the addition or subtraction of one, two, three, or four of these numbers equals 1, 2, 3, ... 40?


Rough Work

I started by selecting masses of 1, 2, 3, and 4 grams. Under the question, this permitted the scale to balance all masses 1, 2, 3, ... 10 grams. With masses of 2, 3, 4, and 5 grams, I could balance all masses from 1 to 14 grams. However, with masses of 3, 4, 5, 6, I could not reach masses of 12, 14, 16, or 17 grams. 

I then tried 1, 3, 5, 7 and this worked for all masses 1 to 16 grams. However, when I tried 3, 5, 7, and 11 I could not get 21 grams. I noticed there were redundant combinations to produce certain masses, such as 2 for instance. I went back in my development to state that I needed 1 or a difference of 1. This rule holds true for all numbers up to 40. I then approached the problem with using prime numbers. 1, 3, 7, 13 work to balance masses of 1 to 24 grams. However, when I kept increasing the fourth mass, I reached the set of 1, 3, 11, and 19 where I couldn't balance 24 grams. 

After a few days, I returned to my sheet of scribbles to realize that I could follow an more general approach.


A Solution

Consider a, b, c, d whole numbers.

For a = 1, b = 2, we have the ability to balance 1, 2, and 3 grams. Therefore, for any c, we can balance masses that equal c as well as plus or minus 1, 2, or 3 grams. 

For a = 1, b = 3, we can balance 1, 2, 3, and 4 grams. For a continuous balance (with maximum combinations for a, b, c) we must have c such that 4 grams less than c is 4 + 1. Therefore, consider c = 9. With 1, 3, and 9 we can balance masses of 1 to 13 grams. Under the same idea, in choosing d, we let d = 27. Therefore, we may balance masses of 1 to 40 grams. Thus, a solution for the four masses is 1, 3, 9, and 27 grams.


Are there other solutions? I don't think so with only four masses. However, I will have to think about it and I look forward to seeing what my classmates have done.

Saturday, November 21, 2020

Herbel-Eisenmann & Wagner (2007)

As anecdotal evidence to align with some of the narrative in the reading, I reflect on my math learning experiences with and without textbooks. I have had good to bad experiences with textbooks. Throughout high school and university, almost all of my math courses had a textbook, however a large portion of those courses, the textbook was an additional resource with suggested problems rather than a key piece to the learning puzzle. I think that in the high school setting, the textbook is often seen as an enemy because there may be inconsistency between what the teacher is doing and what the textbook has written. The authors of this article inspect a the relations between the student and their textbook with five different entities. 1) Their peers. 2) People. 3) Their teacher: 4) Mathematics 5) Their own experiences. Regardless of how a textbook is written, the nature of what is included and the manner in which it is included is complex, driven by politics (as we have seen in earlier readings), from local and global discourse. Additionally, "Language indirectly indexes particular dispositions, understandings, values, and beliefs." The authors conclude, "there is room to draw awareness to the dance of agency between particular persons". I think it is most important to connect this community of relations between the student, textbook, and their environments through focusing on the who. Who found these equations? Who discovered this phenomenon? Where do they come from? This brings the math to life for the students and the textbook can be written to emphasize the diverse humans who made the discoveries we teach.

Final Reflection

This course has been one of my favorite courses of nine this term in the program. I especially liked the seminal work in mathematical educat...