Primary+-+Mathematics

Group Members: S. Martinello, N. Theal, S. Feschuk, R. Parkhouse, L. Schuyler, K. Giancaterino.

Subject: Mathematics, Number Sense and Numeration

Grade: 1, 2, 3 Key Learning: **Numbers can be composed and decomposed in a variety of ways.**

Frame Critical Challenge:


 * Rewrite the story "Centipede’s 100 shoes" so that the math in it is still true, using each of the same insects **

Rough Notes:

Type of Critical Challenge:

Challenge - **Rework the piece** (Critique the Piece, Judge the Better or Best, Rework the Piece, Decode the Puzzle, Design to Specs, Perform to Specs

Culminating ideas/type of challenge to show learning:
 * Rewrite the story "Centipede’s 100 shoes" so that the math in it is still true, using each of the same insects **

Overview:
 * In the story book, "Centipede’s 100 Shoes" by Tony Ross, Centipede gives away 100 shoes. The initial task is for the students to determne if Centipede actually gives away 100 shoes as the story states. Is the author correct? Once this has been established, students will be asked to "rework the piece", so that Centipede, in fact, does give away 100 shoes **

Overall Expectations Evaluated

**Read, represent, compare and order whole numbers up to 100.**

Specific Expectations Addressed


 * A) relate multiplication of one digit numbers to real life situations using a variety of tools and strategies (e.g. place objects in equal groups, use arrays, write repeated addition or subtraction sentences) **
 * B) solve problems using a variety of strategies and demonstrate an understanding of multiplication.

C) compose and decompose two digit numbers in a variety of ways**

Criteria for Judgment:
 * My math is accurate. **
 * I have clearly represented my mathematical reasoning/thinking.**

Background Knowledge required:

How many legs are on worms, grasshoppers, wood lice, beetles and spiders. That mathematical thinking can be represented in pictures, symbols, number and words, or combinations of any and/or all of the above. How to represent their mathematical thinking. Place value.**
 * How to compose and decompose two digit numbers. **
 * Whether the math in "Centipede’s 100 Shoes" is correct?

Critical Thinking Vocabulary: represent clearly**
 * accurate

Thinking Strategies: Student invented representations: possibly T-chart, use of manipulatives (100's board, open number line, bead strings, rekenrek, etc.)

Habits of mind (one or two to focus on)

Persistence**
 * Perseverence