Build a pyramid based on sums. Individuals watch a video of a computer program that creates a pyramid of numbers based upon a starting number. The scholars develop a hypothesis on how the number trick works and share their thoughts on how to model the top number based upon the initial number.

Concepts

algebraic expressions, equivalent expressions, expressions

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Instructional Ideas

• Encourage learners to try the activity using different types of numbers
• Ask the class to come up with expressions for other boxes in the pyramid

Classroom Considerations

• Assumes the teacher has knowledge of Three Act Tasks

Pros

• Provides suggestions for information to give the class
• Contains details about the critical learning expected

Cons

• None

Common Core

6.EE.A.2.a 6.EE.A.2.b 6.EE.A.2.c 6.EE.A.4 6.EE.B.6