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Post on 08-Jun-2015
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1
Overview of Session 7
• Looking Back
– Value of Algorithms
– Value of Reasoning Strategies
• Goals of the Session
• Hexagon Train Problem
• Analysis of Catherine and David Case
• Facilitation of “Redefining Success”
• Reflection
2
Looking Back
• Value of Algorithms
– Efficient
– Reliable
– Universal
• Value of Reasoning Strategies
– Understand the structure of numbers,
operations, proportional
relationships, etc.
3
Goals of the Session
Pedagogical Goals
– To analyze the task for level of cognitive
demand
• To make connections to the MTF
– To analyze instruction
• To recognize the teacher moves that support and
undermine student learning
– To consider what it means to be successful in
doing mathematics and in teaching
mathematics
4
Hexagon Train Problem
• Compute the perimeter for the first 4 trains;
• Determine the perimeter for the tenth train without constructing it; and
• Write a description that could be used to compute the perimeter of any train in the pattern.
Train 1 Train 2 Train 3 Train 4
5
The Case of Catherine and David
What’s the Math?
• What are the mathematical goals?
• How would you describe the level of
the task?
6
Catherine’s and David’s Story
• Read The Case of Catherine Evans
and David Young (Focus on
paragraphs: 10-29 and 42-63.)
• Pay special attention to teacher
moves that support or undermine
student learning.
7
Focus Questions
• What instructor moves supported student learning?
• What instructor moves undermined student learning?
• How would you describe the level of the task as it is implemented in each of the classrooms?
8
Trapezoid and Hexagon Train Problem
• Build the fourth train;
• Build a larger train in the sequence,
such as the tenth or fifteenth, without
building all the trains in between; and
• Write an explanation for why the tenth
or fifteenth train looks as it does.
Train 1 Train 2 Train 3
9
“Redefining Success”
• What was your reaction to
Henderson’s alteration of tasks?
• How has Henderson’s definition of
successful teaching and learning
changed over time?
10
“Redefining Success”
• What do you take as evidence of
success as a teacher of
mathematics?
• What does it mean for students to
be successful in your classroom?
11
Goals of the Session
Mathematical Goals
– To identify and generalize patterns
– To explore relationships between
variables
– To make connections among
representations and solution methods
– To explain and justify solution
methods
12
Goals of the Session
Pedagogical Goals
– To analyze the task for level of cognitive
demand
• To make connections to the MTF
– To analyze instruction
• To recognize the teacher moves that maintain or
undermine the cognitive level of the task
– To consider what it means to be successful in
doing mathematics and in teaching
mathematics
Session 7 Dearborn & Petoskey 9/19/08 & 9/26/ 08
Adapted from Improving Instruction in Algebra: Using Cases to Transform Mathematics Teaching and Learning 9/15/08
Authors: Smith, Silver and Stein
Comparing Instructional Decisions and Their Impact:
The Case of Catherine Evans and David Young
How were the two classes the same and how they were different in terms of what was learned. Describe additional similarities and differences
that you noted as you compared the two classes. Be sure to cite specific evidence from the case (using paragraph numbers) to support your
claims.
Similarities Differences
Catherine Evans David Young
Session 7 Dearborn & Petoskey 9/19/08 & 9/26/ 08
Adapted from Improving Instruction in Algebra: Using Cases to Transform Mathematics Teaching and Learning 9/18/08
Authors: Smith, Silver and Stein jf & nc
Comparing Instructional Decisions and Their Impact: The Case of Catherine Evans and David Young
How were the two classes the same and how they were different in terms of opportunities to learn? What teacher moves or decisions impacted
students’ opportunities to learn? Give 3 to 4 examples for each Catherine and David. Be sure to cite specific evidence from the case (using
paragraph numbers) to support your claims.
Catherine
Teacher moves that undermine student learning Teacher moves that support student learning
David
Teacher moves that undermine student learning Teacher moves that support student learning
Session 7 Dearborn/Petoskey
9/19/08 & 9//26/08
Adapted from Improving Instruction in Algebra: Using Cases to Transform Mathematics Teaching and Learning 9/15/08
Authors: Smith, Silver and Stein
The Hexagon Train Problem
Solve Trains 1, 2, 3, and 4 are the first 4 trains in the hexagon pattern. The first train in this pattern consists of one regular hexagon. For each subsequent train, one additional hexagon is added. For the hexagon pattern
o Compute the perimeter for the first 4 trains; o Determine the perimeter for the tenth train without constructing it; and o Write a description that could be used to compute the perimeter of any train in
the pattern. (Use the edge length of any pattern block as your unit of measure. If pattern blocks are not available, use the side of a hexagon as the unit of measure.)
Consider Find as many different ways as you can to compute (and justify) the perimeter.
Train 1 Train 2 Train 3 Train 4
- Michigan Mathematics and Science Teacher Leadership Collaborative -
Pictures From
Petoskey Session
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
Pictures From
Dearborn Session
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
- Michigan Mathematics and Science Teacher Leadership Collaborative -
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