Lesson Plan

Multiply Decimals with Models

How well do your students know decimals? In this lesson, introduce your students to decimal multiplication using models.
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Need extra help for EL students? Try the Decimal Multiplication Estimations pre-lesson.
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Need extra help for EL students? Try the Decimal Multiplication Estimations pre-lesson.

Learning Objectives

Students will be able to use models to multiply tenths.

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments

Introduction

(5 minutes)
Decimal DutyDecimal Multiplication: Multiply Tenths with ModelsBlank Models for Fractions & Decimals
  • Show students a blank tenths model and a blank hundredths model. Ask students to share their background knowledge about the two models.
  • Review decimal basics, if needed (i.e., place value, tenths place, hundredths place). Then, show students how to shade in the models to represent various decimals (e.g., 0.4, 0.12). Write each number in decimal and fraction form before shading in the model.
  • Explain to students that today they will use models to multiply decimals in the tenths place.

Beginning

  • Ask students specific questions to help them talk about their background knowledge, such as "What do the boxes and lines represent? How can you use this in multiplication problems?"
  • Allow students to use their home language (L1) or new language (L2) in their discussions.
  • Have students tell the difference between the hundredths and tenths place.

Intermediate

  • Ask students to explain how to convert a decimal to a fraction and vice versa. Allow them to share their ideas in partners.
  • Write the academic language they can use throughout the lesson on the board as you introduce the language.