Is a repeated addition definition mathematically valid? Using mathematical properties, a video explains why, even though there is a connection between repeated addition and multiplication, it is not a good definition. The properties hold for all types of multiplication and not just whole number multiplication.

Concepts

multiplication, addition, addition repeated, counting, math strategies

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Additional Tags

math

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Instructional Ideas

• Verify that the same claim works for decimals and fractions

Classroom Considerations

• Expects that students know the distributive property
• The class should be comfortable with multiplication

Pros

• Includes links to additional resource on mathematical properties
• Uses an example to demonstrate the concept

Cons

• None

Common Core

SL.3.2 3.MD.C.7.a MP6