Unit Plan + 3 Lesson Plans
EDCP 342A Unit planning: Rationale and overview for
planning a 3 to 4 week unit of work in secondary school mathematics
Your name: Jun Hwang
School, grade & course: Mulgrave School, grade 10 & Foundations of Mathematics
and Pre-Calculus/IB Math 10
Topic of unit: Translating real-world problems into Linear Equations
and
Systematic approach to solve them.
Preplanning questions:
Why do we teach this unit to secondary
school students? (150 words)
(1)
Why is this topic included in the
curriculum?
- The
topic is included in the curriculum because it allows us to solve not only
what we consider ‘rigid’ and ‘mathematical’ problems but also many others
such as in human interactions and social justice. Yet, there are limits in merely
using linear equations in certain contexts hence by having included the topic
in the curriculum, students obtain an opportunity to discuss the limits of
linear equations in solving problems that arise in the real world.
(2)
Why is it important that students learn
it?
- The
answer ties into (1), and that is because students only focus on solving
problems especially when the problems are posed in the math classroom. Prior
to assuring and understanding the need for problem solving, students may not
be aware where linear equations arise in real contexts. It is the teacher’s
responsibility to open up to the new realm of mathematics, that is showing
them the role translation plays in problem solving in general.
(3)
What learning do you hope they will take
with them from this?
- To
be malleable, flexible and being able to communicate with peers when solving
linear equations rather than focusing on the procedural steps to solve them.
(4)
What is intrinsically interesting, useful,
beautiful about this topic?
- What
is embedded in the topic is that having to read a literature in a different
context (other than mathematics) brings students with mixture of confusion
and uneasiness especially when the text is not directly translatable to
mathematical equation. Hence, rather than bringing teachers’ problems onto
the students’ table, let us judge collaboratively whether some texts are
translatable and why some don’t in the context of linear equations.
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A mathematics project connected to this
unit (250 words)
(1) Plan
and describe a student mathematics project that will form part of this unit.
- Math
project, called ‘Drawing Birch Bark Canoes’, will display a large graph paper
with numerous linear equations on the side. Each student will graph each
linear equation on the side, and soon discover that the final shape of every
linear equation put together forms the 3D shape of a birch bark canoe, which
was the principal means of water transportation for Indigenous peoples of the
Eastern Woodlands, and later voyageurs, who used it extensively in the fur
trade in Canada.
(2) Describe
the topic, aims, process and timing
- The
topic of the math project is about the indigenous perspectives and cultures. The
architectural design of the canoe was exceptional for generating a great speed
and elegance. Samuel de Champlain remarked that it was ‘the only craft
suitable’ for navigation in Canada. Artist and author Edwin Tappan Adney
asserts that the birch bark canoe was so superior that it was adopted almost
without exception in Canada. The process of the canoe drawing will take
longer than 1 week because it needs architectural layout through linear
graphs, coloring, and analysis of the pros and cons of the boat.
(3) What
the students will be asked to produce
- The
students will be asked to graph the linear equations listed on the side of
the paper and will color the interior part of each 2d shape, analyze the pros
and cons of the boat, create a new boat by implementing the cons and organize
where such boat will be used.
(4) How
you will assess the project.
- The
assessment, for the most part, will be focused on whether the graph is
correctly drawn. Reading the linear equation by its slope and y-intercept is
the key part of understanding the unit. The supplementary assessment will be
on students’ creativity to draw a new boat of one’s own and translate back
into the linear equation. The discussion portion will also be used for
assessment in which students are allowed to discuss different ideas to create
a boat and the application of it, as a communication and participation
portion.
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Assessment and
evaluation (100 words)
How will you build a fair and well-rounded assessment and
evaluation plan for this unit?
1) formative
- Formative
assessment occurs in almost any activity that the teacher assign to students.
Most of the warm-up activity will have students demonstrate their
communication, collaboration with peers, and math understanding. The
formative assessment in the beginning will take note of the progress each
student has made at the end of the class compared to the activities in the
beginning.
2) Summative
- Summative
will be the progress noted in the formative assessment. Students will be
notified of this fact, so that teachers can expect a minimum degree of
participation in the classroom. Test materials and correctness in the
reasoning will be less of a value here but will be measured at the end of
each unit/lesson.
3) informal/observational
- Take
note of the formative
4) more
formal assessment modes
- Boat
project, mid-term tests, mark appeal process
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Elements of your unit plan:
a) Give a numbered list of the topics of the
10-12 lessons in this unit in the order you would teach them.
Lesson
|
Topic
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1
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What are Linear Equations?
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2
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Different Forms of Linear Equations
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3
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Ways to Solve Linear Equations
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4
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Changing Word Problems into Linear Equations
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5
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Terminologies that Appear in Word Problems
|
6
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How to Translate Word Problems into Math Equations
|
7
|
Linear Equation with Rational and Irrational Numbers
|
8
|
Linear Equation with Multiple Unknowns
|
9
|
Systems of Linear Equations
|
10
|
|
(11)
|
|
(12)
|
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Subject: Mathematics
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Grade: 10
|
Date: Dec. 11, 2017
|
Duration: 1 week
|
Lesson Overview
(What this lesson is about)
|
-
Different forms of linear equations
-
How to solve it
-
Extension to difficult problems
|
||
Class Profile
|
-
25 students, 1 IEP, 2 ELLs
|
Big Idea(s) |
- Operations between polynomial expressions
are connected and allow us to make meaning through abstract thinking
|
Curriculum Competencies
|
-
Demonstrate
fluent and flexible thinking of number
-
Model
mathematics in contextualized experiences
|
Content
|
-
Linear
operations and the meaning of linear equations
-
Where
it is used and why it is important to make contextualized language into a
mathematical expression
-
The
techniques of solving variety of forms of linear equations and how to solve
it
|
Curriculum Objectives
|
-
Using
the mathematical language and communicating the problem with peers and
connecting it into a real world situation
|
Materials
and Equipment Needed for this Lesson
|
-
5 Markers
-
Big Bristol Board-like papers
-
The lesson power point
-
Formative assessment sheet
|
Lesson Stages
|
Learning
Activities
|
Time Allotted
|
|
1.
|
Warm-up
|
-
Organizing with Graphic
organizers and group mind-mapping for linear equation and collaborative
problem solving process and fun math puzzles
-
Ex) Jigsaw Puzzle
|
30 min
|
2.
|
Presentation
|
-
The different forms
of linear equations. How do we solve for them?
-
Introduction of the
terms: Cross Multiplying, Isolating a variable: What does each do to get our
x value?
|
20 min
|
3.
|
Practice and Production
Practice, reinforcement, and extension of the new content and language.
|
-
Things to consider: What does it mean to isolate a variable?
What does it mean to cancel out a coefficient? What kind of approach are
there with variables on both left hand side and the right hand side?
|
20min
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4.
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Closure
|
The universe of solving systematic equations often involve more
than one equations simultaneously because there are more than one unknowns to
the wonders of the world. Can we still find x in such a case as well?
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5 min
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Assessment/Evaluation of Students’ Learning
|
-
Formative assessment starts from the warm-up process. In doing
the jigsaw students will find the location of the jigsaw by solving linear
equations shown on each puzzle piece. But, some students will solve the
puzzle by trial and error. If some pieces don’t fit, the students will do it until they
find the right piece. Then, they will realize the location of the puzzle is
indicated in the x-value of the linear problem on the piece and find the
answer to the problem that way.
-
The evaluation will come up in the word problems mostly because oftentimes
students get stuck to the procedure of solving linear equations. The
procedure is in fact the least important thing in solving linear equations.
They can isolate the variable then reduce the coefficient to 1 but they can
do it in any order they want. Not to emphasize what counts as correct and
what counts as not correct I will provide as many word problems as possible.
The transition to get familiar with the test format this will be made first
of all as a formative then to summative.
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Reflection
Reflect on your process of developing this lesson plan. Explain
how your lesson plan relates to some of the theoretical concepts acquired in
this course so far.
|
-
Students often have
difficulties solving linear equations for different forms of linear
equations. For example, if an unknown value has a whole number coefficient,
one does not know how to get cancel out the whole number greater than 1
unless teacher guides them to ‘divide’ by
that whole number. If the coefficient is a
rational value that is not a whole number, it becomes a whole new problem for
students.
-
It becomes evident when
teachers observe students, they want procedural steps to find the value of x.
There needs to be a transitional process and instructional guidance with
teachers to explain what it means to ‘isolate’ a
variable or ‘cancel’ the coefficient
|
Subject: Mathematics
|
Grade: 10
|
Date: Dec. 11, 2017
|
Duration: 1 week
|
Lesson Overview
(What this lesson is about)
|
-
The Benefit of Changing Word Problems to Mathematical equations
-
Terminologies that emerge in word problems
-
How to translate them into math equations
|
||
Class Profile
|
-
25 students, 1 IEP, 2 ELLs
|
Big Idea(s) |
- Operations between polynomial expressions
are connected and allow us to make meaning through abstract thinking
|
Curriculum Competencies
|
-
Demonstrate
fluent and flexible thinking of number
-
Model
mathematics in contextualized experiences
|
Content
|
-
Linear
operations and the meaning of linear equations
-
Where
it is used and why it is important to make contextualized language into a
mathematical expression
-
Translating
variety of word problems into linear equations
|
Curriculum Objectives
|
-
Using
the mathematical language and communicating the problem with peers and
connecting it into a real world situation
|
Materials
and Equipment Needed for this Lesson
|
-
5 Markers
-
Big Bristol Board-like papers
-
The lesson power point
-
Formative assessment sheet
|
Lesson Stages
|
Learning
Activities
|
Time Allotted
|
|
1.
|
Warm-up
|
-
Word Problem activities:
Students will create their own problems and translate them into mathematical
equations and have their ideas posted on a big Bristol board.
-
Solutions to the problems that
the group has come up
-
Presenting it to peers and a
teacher
|
30 min
|
2.
|
Presentation
|
-
Terminologies: What
are the terms we are aware of in the math problems in general? What are the
terms that we are not fully aware but useful for mathematical expressions?
-
Translating the word
problems into mathematical equations and reflecting on the systemic approach
to solving the equations
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20 min
|
3.
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Practice and Production
Practice, reinforcement, and extension of the new content and language.
|
20min
|
|
4.
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Closure
|
The problems in the real world brings us a limitation for
solving them because they are not so directly translatable. What are such
problems? How can they be translated into a mathematical equation so that the
problem becomes easily solvable?
|
5 min
|
Assessment/Evaluation of Students’ Learning
|
-
Formative assessment starts from the warm-up process where
students collaborate to come up with their own word problems and making a
connection to a problem that can be systematically solved by the steps we
have learned in our previous lesson. The creative process inquires students
to think about the new concepts and make connections to why the translation
is important.
-
Students will evaluate their peers and it allows teachers to
evaluate where they are at in terms of what to seek and where to translate.
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Reflection
Reflect on your process of developing this lesson plan. Explain
how your lesson plan relates to some of the theoretical concepts acquired in
this course so far.
|
-
It is often a problem that
teachers present with all the cases of word problems because otherwise
students may not see the connection between where the word problems appear
and why translating them to mathematical equations. Hence, it is often
encouraged to guide students to come up with their own and sometimes it’s OK to have problems not
necessarily be a linear problem or even unsolvable. In the end, their
presentation will sum up their mistakes and observe their own why it cannot
be translated to mathematical equation sometimes.
|
Subject: Mathematics
|
Grade: 10
|
Date: Dec. 11, 2017
|
Duration: 1 week
|
Lesson Overview
(What this lesson is about)
|
-
Linear equation (one unknown) with rational and irrational
numbers
-
Linear equation with multiple unknowns
|
||
Class Profile
|
-
25 students, 1 IEP, 2 ELLs
|
Big Idea(s) |
- Operations between polynomial expressions
are connected and allow us to make meaning through abstract thinking
|
Curriculum Competencies
|
-
Demonstrate
fluent and flexible thinking of number
-
Model
mathematics in contextualized experiences
|
Content
|
-
Linear
operations and the meaning of linear equations
-
Where
it is used and why it is important to make contextualized language into a
mathematical expression
-
Systematizing
simultaneous linear equations to solve for multiple unknowns
|
Curriculum Objectives
|
-
Using
the mathematical language and communicating the problem with peers and
connecting it into a real world situation
|
Materials
and Equipment Needed for this Lesson
|
-
5 Markers
-
25 laminated sheets
-
The lesson power point
-
Formative assessment sheet
|
Lesson Stages
|
Learning
Activities
|
Time Allotted
|
|
1.
|
Warm-up
|
-
Organizing with Graphic
organizers and group mind-mapping for linear equation and collaborative
problem solving process and fun math puzzles
-
Ex)
Figure 1 Credit to: Bethany @ www.mathgeekmama.com
-
Presentation of ‘how’ each group has solved it.
|
40 min
|
2.
|
Presentation
|
-
We are presented
with linear equations that involve multiple variables. In fact, we have been
using it but which one have we not seen yet? How do we solve for them?
-
Introduction of the
terms: Solving for equations with multiple variables: How to
subtract/add/multiply/divide between equations and how to derive the unknowns
|
20 min
|
3.
|
Practice and Production
Practice, reinforcement, and extension of the new content and language.
|
Practice1) Solving using graphical method:
Practice2) Test: Solving using systematic approach:
|
10min
|
4.
|
Closure
|
We have been dealing with solving a equation with 1 variable
with many different forms and contexts. We have seen the limits of its
presentation to translating to 1 unknown oftentimes. Hence, we have seen the
necessity of systematizing it by introducing multiple variables and different
solutions to obtain different unknowns. The problem arises still: How can we solve
for these variables which involve more wild looking unknown values such as
cubed x and exponential variable?
|
5 min
|
Assessment/Evaluation of Students’ Learning
|
-
Students will be struck by the difficulty of the equations which
they have not encountered in the previous lessons. The point is that how they
collaboratively come to the agreement when solving those systems of linear
equations involving more than one equations and play with variables rather than
constant values existent in linear equation involving one variable.
-
The presentation therefore will evaluate how they have come or
not come with the solutions and how far they have gone to or close to the
value of unknowns through communicating with peers
-
Test papers at the practice time will be measured and extended
to measure student performance in deriving the solutions to the problem
(Starting from formative to summative)
|
Reflection
|
-
Linear equations with multiple
equations is naturally come up in the contextualized problems that students
make themselves in the previous lesson.
-
The students’ own intellectual struggle to
find that multiple variables is the key motivation to this lesson. The
solution does not come out so easy because this time you have to apply
different operations with the equations this time, not just numbers to ‘isolate’ variables or ‘reduce’ coefficients.
-
Starting from students’ own brainstorming to get an
idea of where and how to derive the solution to multiple variables (in our
case, ice cream cost problem), they will get a brief idea what it is that we
are trying to solve here. We are not only interested in just one but for many
unknowns.
In fact,
they have been using systems of multiple linear equations themselves but
somehow not so much aware of it. This time, I will introduce from how we have
been afraid of this multiple equations to how familiar we were in solving
different contextualized problems.
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Thanks for this redone unit plan, Jun.
ReplyDeleteRationale: Interesting! I am interested in seeing how you bring this sense of critical thinking and uncertainty to the translation process in mathematical/ contextual problem solving.
Project: Hmmmm… interesting (for the teacher) to take the shape of a birchbark canoe and analyze it in terms of linear equations that the students can reproduce.
However, when you look at photos of actual birchbark canoes (like the archival photo here: http://www.ojibwe.org/home/images/pressroom/photos/LANG1_300dpi.jpg), you will see that, like most boats, they are made up of curves, not straight lines! Even if you can approximate the curves with a lot of tangent lines, it is only a pretty inaccurate approximation.
In terms of Indigenous connections, I really don’t think any canoe was ever designed and built using linear equations. And birchbark canoes were only built in places where birch trees grow (Eastern Canada/ US); canoes in BC are more commonly dugout canoes, made from hollowed tree trunks.
How are the students meant to analyze the pros and cons of the boat? Will they ever be trying out this canoe (or one like it)? What is the basis for their analysis and redesign of a different canoe?
I see quite a few problems with this project, but there is a good idea about translation back and forth from linear equations to drawing at the heart of it.
My suggestion would be to find a different object or shape, one that actually is formed from straight lines, but that is also culturally interesting and not simplistic. It might have an Indigenous connection or not. For example, why not explore mathematical string art (for example, https://www.youtube.com/watch?v=Xc7gbW0kb14 or https://www.youtube.com/watch?v=lm38Url_560, or this mathematically fascinating one: https://www.youtube.com/watch?v=qhbuKbxJsk8 ) ? These are patterns made of straight lines that give the illusion of curves, and they can be quite beautiful. Your project could follow the same trajectory, but start with students drawing a string art pattern you have analyzed, then have them design their own string art pattern, break it down into linear equations, and finally give that to other students to draw.
You could even create ‘adult colouring books’ (very popular now) where people first graph the lines on Cartesian coordinates and then colour them. Or students could program their linear patterns into GeoGebra to create their mathematical string art designs… or actually make them with string.
What do you think?
Assessment: Looks OK
Unit elements: It seems to me that you have given too much time to some topics and too little to others. For example, ‘terminologies that appear in word problems’ does not seem like enough for a whole lesson, while ‘systems of linear equations’ needs several lessons. You have 10-12 lessons to work with, but have only used 9. I suggest you re-work this list of elements with advice from your SA, expanding some topics and contracting others.
A question: Why do your unit plans give the date as Dec. 11, 2017 with a duration of one week? This is not when you will be teaching this unit (obviously), and the unit is designed to take 3-4 weeks…!
Lesson #1: You have scheduled 30 minutes for a warm-up, which seems a very long time! I don’t understand how you plan to spend this time with your class as your description is rather vague. Will students be doing simple jigsaw puzzles? Mind-mapping…something? Collaborating on…what? This needs to be clarified and explained!
ReplyDeleteAh, looking to the end of the lesson plan, I see that there are linear expressions on the jigsaw pieces, and a quick google search tells me you got this (without attributing it) from https://www.teacherspayteachers.com/Product/Writing-linear-equations-in-slope-intercept-form-from-other-forms-jigsaw-puzzle-3189946 . However I still don’t understand how these expressions tell students how to solve the jigsaw, as they aren’t equations… just expressions. Is it something to do with slope? I am still confused, although this seems a bit more connected… Can you explain how this jigsaw puzzle exercise actually works?
Presentation, practice and production: The example you give looks more like one from a unit on rational equations than on linear equations. Linear equations have the variables to the power 1 (not to the power -1, in the denominator).
I found this (again unattributed) example online at https://www.mathportal.org/algebra/solving-equations/solving-linear-equations.php.
It’s OK for you to use some resources that you borrow from others, but you should ALWAYS let it be known where you borrowed from!
What other examples are you planning to use? What will be your basis for choosing and ordering examples in terms of your students’ learning trajectory?
What will the students be doing during the 40 minutes of ‘presentation, practice and production’? You have only written down some mathematical topics, but I have no idea from this what you are planning for you and the students to be doing.
Closure: Are you introducing systems of equations/ multiple variable equations at this point? If so, why bring that in at the end of a class?
I am still unclear about why you say that ‘the procedure is in fact the least important thing in solving linear equations’ when you have just taught a highly procedural lesson. What do you consider to be important in this topic — and then, why not focus on the important things in the lesson? You say you will provide many word problems — but you have not included even one of them here! I am left quite confused about how this lesson will go and what the focus is.
Lesson #2: Warm-up: Asking students to make up word problems will not generally produce the kind of word problems you are aiming for (in relation to linear equations or other topics). Students are just starting to figure out what the topic is, and don’t have the resources to design word problems around it. You will very likely get word problems that relate to elementary school arithmetic — and this is not worth spending 30 minutes on! I suggest you rethink and re-plan the warm-up for this lesson. Perhaps, for example, you might give each group a linear equation to start with, and have them try to write a word problem around it… although that is not necessarily an easy task!
Presentation, practice and production: A bit sketchy, but the translation problems you have selected and the general idea of translation from words into linear equations is helpful. It seems like the students will be quite actively involved in this lesson.
Lesson #3:
ReplyDeleteWarm-up: The system of equations puzzle sheet you show (attributed this time to mathgeekmama.com, thanks!) is not the strongest puzzle for Grade 10s. For one thing, there are repeated equations in both the horizontal and vertical directions (the two rows that sum to $10.79 and the two columns that sum to $12.55). Beyond that, the graphics might look a bit babyish for 15-year-olds. I’m sure you can find other, somewhat more challenging similar problems for your students. And you’ll need more than one puzzle — what else will you use? In my opinion, 40 minutes (more than half your class) is not really justifiable for ‘warm-up’ unless that warm-up really gets your students deeply involved in the topic of the lesson.
Presentation, practice and production: It looks to me like this lesson is about systems of equations, NOT so much about linear equations with rational and irrational numbers. (There are no irrational numbers included in your examples at all…) For a graphical solution of linear equations in 2 unknowns, you only need two lines, not three.
As I mentioned earlier, ’systems of equations’ will very likely need two or three classes to introduce various solution techniques and an understanding of why they work (and why they are equivalent).
The Closure question about solving polynomials of degree >1 takes us out of linear equations and into higher degree curves. Why introduce this in the last five minutes of class, with no follow-up?
Overall: This unit plan has many problems, and is not very strong as it stands. There is some degree of confusion about what the unit topic entails, and how long needs to be spent on each part of the unit. Lesson plans have some good ideas, but they are often vague, and examples are not well thought out. I don’t think it is defensible to give 30-40 minutes to a ‘fun’ warm-up that is not thoroughly and deeply connected to the topic of the lesson. I recommend spending a lot more time, and consulting with your SA, to improve this unit plan to the point where it is ready to teach to your class on your long practicum!