 Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum            Session 4:
Homework  Problem H1 Explain the diagrams that illustrate 12 4 using the following models:

 a. The partitive (or equal groups) model   b. The quotative (or measurement or repeated subtraction) model   Problem H2 Which two of the following models represent the same multiplication problem?   Model (2) illustrates two groups of six, and model (4) illustrates six groups of two.   Close Tip Model (2) illustrates two groups of six, and model (4) illustrates six groups of two. Problem H3 Show how to compute 195 13 using two different models: the area model and long division. Show how the area model relates to long division. Problem H4 Explain how adding zeros with the colored-chip model helps you understand subtraction problems like +2 - (-4). Problem H5 Why doesn't the colored-chip model work for all division problems with positive and negative integers?     Chapin, Suzanne and Johnson, Art (2000). Chapters 3 and 4 in Math Matters: Understanding the Math You Teach, Grades K-6 (pp. 40-72). Sausalito: CA: Math Solutions Publications.
Reproduced with permission from the publisher. © 2001 by Math Solutions Publications. All rights reserved.

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