Teaching expanded notation is a great way to enhance young mathematicians' understanding of place value. This presentation explicitly describes the process, starting with the largest place value and working down, from left to right, through the number. For added support, provide the class with copies of a place value chart to use with the practice and assessment problems. An excellent resource for strengthening the foundational math skills of your class.

Concepts

number sense, numbers, place value, expanded notation

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Additional Tags

written number form, expanded number form, math

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Pros

• Provides step-by-step instructions for breaking numbers apart into expanded notation
• Uses a place value table to reinforce the concept of expanded notation
• Includes a variety of problems that thoroughly address an understanding of place value and expanded notation
• Instructions and practice problems are printable

Cons

• Requires prior knowledge of place value to the hundred thousands place

Common Core

4.NBT.A.2 MP7 MP8