Using a calendar, basketballs, and tennis balls, young mathematicians determine the common multiples of four and six. Individuals drag and drop the balls onto the correct dates each sport will be played, allowing them to see which days overlap. In turn, they discover common multiples of the two numbers.

Concepts

common multiples, multiples, calendar math

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Additional Tags

math

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Instructional Ideas

• Assign the resource to Google Classroom to keep track of each person's progress. Use this information to clarify missed problems with the class or the individual, one-on-one
• Distinguish between common multiples and common factors before beginning, as one question uses both concepts

Classroom Considerations

• Resource can be used as practice or instruction of the skill
• Ensure all users have free CK-12 accounts to access the interactive
• Does not explain why a question was missed but simply shows the correct answer

Pros

• The Learn More link in the interactive serves as a refresher or instruction of the skill
• Final question is a discussion prompt

Cons

• None

Common Core

6.NS.B.4