1. From 3rd grade TERC Investigations, "Things that Come in Groups," p. 89:

There are 26 crackers in a box. Each cracker can be split into 2 equal pieces. How many pieces will there be?

Show how you solved this problem. You can use numbers, words, or pictures.

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2. From Professeur Phifix, a web resource for French curriculum materials, "Multiplication and Division" problems for CE2 (3rd grade), translated from the French:

August has invited 4 friends over for his birthday. His mother bought him 3 cookie boxes each containing 25 cookies. After playing soccer, the children come to eat and celebrate August's 10th birthday.

Calculate the number of cookies that each child will eat.

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3. Extra Credit:

Using words, numbers, or pictures, explain why the Investigations problem, but not the French problem, stipulates that students must explain their answers.

## Thursday, October 30, 2008

### Math problems of the week: 3rd grade Investigations (TERC) vs. French math

Labels:
French math,
math,
Reform Math

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## 3 comments:

I have taught math for elementary school teachers (at a community college). I do see some of the benefit to explaining work, etc. But, I also agree that the material is getting less content-based in order to allow for more "explanation." I think one of the biggest issues today is that the teachers don't understand the math, and therefore they do have to be told (i.e. not the students) to explain their work!

I would choose to compose a picture to answer this question. It would be post-pomo collage of photographic images from the civil rights movement and international skirmishes that signifies the struggle of the disenfranchised worker against greedy corporate bigots who stock only boxes of broken crackers in urban marketplaces.

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