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The top 5 strategies used to engage high school students in critical thinking.
Jules Bonin-DucharmeProvincial Math Facilitator for the CFORP,Supporting the Ontario Ministry of Education’s math initiatives.@jboninducharme
bit.do/julesbdNCTM2017 @jboninducharme
Who thinks, learns!
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Think, pair, share
@jboninducharme
What makes a rich math task rich?
bit.do/julesbdNCTM2017
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Creating rich math tasks!
How to develop rich math tasks that
foster critical thinking?
@jboninducharmebit.do/julesbdNCTM2017
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Ontario mathematical Processes
@jboninducharme
http://www.edugains.ca/newsite/math/mathprocesses.html
ProblemSolving
ReflectingReasoning and
ProvingConnecting
RepresentingTools and
computationalstrategies
Communicating
bit.do/julesbdNCTM2017
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Standards for Mathematical Practice
Make sense of problems and
persevere in solving them.
Reason abstractly and quantitatively.
Construct viable arguments and
critique the reasoning of others.
Model with mathematics.
Use appropriate tools strategically.
Attend to precision.Look for and make
use of structure.
Look for and express regularity in repeated reasoning.
bit.do/julesbdNCTM2017
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6 prompts to help create questions and tasks that invite thinking
@jboninducharme
Critique the piece
Judge the better or best
Rework the piece
Decode the puzzle
Design to specs
Perform to specs
The Critical Thinking Consortium (TC²)
www.tc2.ca
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Celebrate mistakes!
@jboninducharme
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Sign at YouCubed Summer Math Camp
In this class, mistakes are:
ExpectedInspectedRespected
Source: Jo Boaler
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You might know this one!
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Wait! What???
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Michael Fenton – www.mathmistakes.org
This is an «awesome » mistake! How would you respond to this student?
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Visualize, Verbalize, Verify
@jboninducharme
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Pay attention to Spatial Reasoning
@jboninducharme
Visualize
Verbalize
Verify
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Steal models!
@jboninducharme
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Kyle Pearce – tapintoteenminds.com
@jboninducharme
tapintoteenminds.com/progression-of-multiplication/
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Dynamic double number line
How can we determine if this equality is true?
115 + 35 = 50 + 50 + 50
@jboninducharme
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Dynamic double number line
@jboninducharme
How can we determine if this equality is true?
115 + 35 = 50 + 50 + 50
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Dynamic double number line
@jboninducharme
How can we determine if this equality is true?
115 + 35 = 50 + 50 + 50
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Dynamic double number line
@jboninducharme
How can we determine if this equality is true?
115 + 35 = 50 + 50 + 50
15 more than 50 + 50
15 less than 50
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Dynamic double number line
@jboninducharme
How can we determine if this equality is true?
115 + 35 = 50 + 50 + 50
15 more than 50 + 50
15 less than 50
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Oh No! The Numbers Fell Off Our Number Line
http://tmerc.ca/m4yc/peterborough.html
Clothesline math!
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Clothesline math!
2x+7
16
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
2x+7
160
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
2x+7
160
0x
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
2x+7
160
0x
0
2x
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
2x+7
160
0x
0
2x
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
2x+7
160
0x
0
2x
?
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
2x+7
160
0x
0
2x
9
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
2x+7
160
0x
0
2x
9
1x
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
2x+7
160
0x
0
2x
9
1x
4,5
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
7x - 11 = 5x + 3
@jboninducharme
source: Andrew Stadel – clothesline math activities
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Clothesline math!
7x-110x 0 5x+3@jboninducharme
source: Andrew Stadel – clothesline math activities
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Ask ambiguous questions!
@jboninducharme
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Paying attention to Proportional Reasoning
Which shape is more purlple?
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Paying attention to Proportional Reasoning
Which dog grew more?
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Marian Small open-ended questions
The solution to a fairly simple equation is 3.5 more than the solution to a complicated equation.
What might the equations be?
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How many circles are there in the 113th figure?
@jboninducharme
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How does this pattern grow?
@jboninducharme
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(n + 1) + (n + 2)
@jboninducharme
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n + n + 3
@jboninducharme
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5 + 2(n - 1)
@jboninducharme
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Fawn Nguyen - www.visualpatterns.org
@jboninducharme
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Math fights!
@jboninducharme
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Marian Small - Debates
Sam: It is not possible to multiply two fractions and get a product with a smaller denominator than the ones you started with.
Kevin: Yes, you can.
With whom do you agree?
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Marian Small - Debates
Julie: Every function of the form y = a sin(x –h) + b can be renamed as a function of the form y = c cos(x –k) + d.
Xavier: Some can, but not every.
With whom do you agree?
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Which one doesn’t belong?
Which graph doesn’t belong?
source: wodb.ca
@jboninducharme
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Developing arguments
Is the circumference of the bottle smaller, equal or higher than the height of the bottle?
source: Andrew Stadel
@jboninducharme
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1.Celebrate mistakes2.Visualize, Verbalize, Verify 3.Steal models4.Ask ambiguous questions 5.Math fights
Tweet the strategy that you find the most interesting and tell me why. #thinkingmath
@jboninducharmebit.do/julesbdNCTM2017
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Prénom NomFonction
Courriel
Téléphone
Twitter (optionnel)
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@jboninducharme
Jules Bonin-DucharmeProvincial Math Facilitator for the CFORP,
Supporting the Ontario Ministry of Education’s math initiatives.
jboninducharme.wordpress.com
bit.do/julesbdNCTM2017
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@jboninducharme