1. Understanding Associative and Distributive Properties Unit of Study: Multiplication / Division Facts and Strategies Global Concept Guide: 2 of 4

2. Content Development  Approximately 2 days should be spent on students understanding the Associative and Distributive Properties. The Distributive Property will also be addressed GCG 3.  Students will need manipulatives to build a variety of arrays.  During unit please be aware of the misconception that when using the Distributive Property, students may incorrectly break a number into its factors instead of its addends. Example: 6 X 9 = (6 x 3) + (6 X 3) The student broke apart 9 into two factors, 3 and 3, instead of two addends, such as 3 and 6.

3. Day 1  The focus of Day 1 is students will be grouping factors to make multiplication easier (Associative Property).  Example: 2 X (2 X 5)  Students should build arrays and record their models and equations in their journals. (Tip: Have students build on top of journal so they can carry up to front of room to share with class).

4. Day 2  The focus of Day 2 is students will develop and understanding of the Distributive Property.  Encourage students to use basic facts to break up more complex problems.  Example:

5. Enrich/Reteach/Intervention  Reteach- for students struggling with the Associative Property use the Reteach activity on p. 161B. For Distributive Property use Reteach Activity 169B.  Enrich- to extend students in Distributive Property, use E36 (TE170). For Associative Property use E34 (TE 162) or activity on P. 161B.  The activity Party Time can also be used to enrich students.Party Time