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Lesson Plan
Whose is Longer?: Decimals in Expanded Form
Teach your students how to write decimals in expanded decimal form with this fun game. Students will be writing and comparing decimals while not even realizing they are learning one of the most complicated 5th grade math standards.
Grade
Subject
View aligned standards
Learning Objectives
Students will be able to write decimals in expanded form.
Introduction
(15 minutes)
- Write "523.912" on the board.
- Have students read the decimal out loud in proper form (five hundred twenty-three and nine hundred twelve thousandths).
- Give students tips on saying it properly and correct any misconceptions about pronunciation.
- Repeat if needed.
- Pose this question: What is the place value of the digit 3?
- Have students discuss in their pairs or groups. Encourage them to think deeply about the question.
- Have a few students share their ideas, and discuss the question as a whole group.
- Explain that the value is one and the digit tells us there are three of them.
