# 9. Generate patterns and make observations (FP)

teaches Common Core State Standards CCSS.Math.Content.4.OA.C.5 http://corestandards.org/Math/Content/4/OA/C/5
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Lesson objective: Generate patterns using the four operations and make observations on the features of the pattern.

This lesson helps to build fluency with generating patterns and making observations on patterns. Pattern rules with variables are used here because it continues students' work with variables and patterns from third grade and develops it with making observations. This work develops students' understanding that patterns follow a given rule, but other features of patterns are present.

Students engage in Mathematical Practice 7 (look for and make use of structure) as they closely examine numbers to determine a pattern and think about the patterns seen in different operations. Students will begin to look for predictable ways that numbers may increase or decrease, such as looking for multiples. They will also begin to see commonalities between numbers in order to more easily decipher patterns and make conclusions on the features of patterns.

Key vocabulary:

• observation
• pattern
• rule
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