# 10. Use distributive property to solve problems (A)

teaches Common Core State Standards CCSS.Math.Content.6.NS.B.4 http://corestandards.org/Math/Content/6/NS/B/4
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Lesson objective: Write equivalent expressions using the greatest common factor and the distributive property.

This lesson provides an opportunity for students to apply their knowledge and understanding of the distributive property to a mathematical situation. Students are asked to find missing addends, factors and products on area models and write equivalent expressions to represent the area of the models.

Key Concept students will use:

• We can use the distributive property and common factors to write equivalent expressions.

Skills students will use:

• finding the greatest common factor
• dividing decimals
• writing equivalent expressions using the distributive property

Students engage in Mathematical Practice 7 (look for and make use of structure) as they use the structure of an area model to help them understand how to write equivalent expressions to represent the area of the model.

Key vocabulary:

• area model
• distributive property
• equivalent expressions
• greatest common factor
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