Beginning with a word problem that poses the question of making groups of 10 pennies to translate into a single dime, pupils are challenged to make sense of the amount of dollars 33 cents is in expanded form.

Concepts

expanded notation, decimals

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Additional Tags

math

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Instructional Ideas

• Use as a way to introduce representing decimals in expanded form
• Assign the link to Google Classroom or through the CK-12 website in order to keep track of individual progress

Classroom Considerations

• Provide notebook paper for class members to write and work out their problems
• Ensure all class members have a free CK-12 account to access the interactive

Pros

• Allows users to manipulate the groups of pennies as they work to solve each problem
• The last question promotes discussion if completing the interactive in a whole group setting

Cons

• None