# ALEX Classroom Resource

## Grade 5 Mathematics Module 1, Topic E: Multiplying Decimals

Classroom Resource Information

Title:

Grade 5 Mathematics Module 1, Topic E: Multiplying Decimals

URL:

Content Source:

EngageNY
Type: Lesson/Unit Plan

Overview:

A focus on reasoning about the multiplication of a decimal fraction by a one-digit whole number in Module 1, Topic E provides the link that connects Grade 4 multiplication work and Grade 5 fluency with multi-digit multiplication. Place value understanding of whole-number multiplication coupled with an area model of the distributive property is used to help students build direct parallels between whole-number products and the products of one-digit multipliers and decimals (5.NBT.7). Once the decimal has been placed, students use an estimation-based strategy to confirm the reasonableness of the product through place value reasoning. Word problems provide a context within which students can reason about products.

Content Standard(s):
Tags: add, baseten, compare, decimals, digits, divide, expanded form, hundredths, multiply, pattern, place value, subtract, thousandths, unit form