# Lesson Plan: Dividing Decimals: Decimal Quotients Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to explain the result of multiplying by 10 when dividing with decimals and use it to calculate quotients using long division.

#### Objectives

Students will be able to

• understand that multiplying both the dividend and the divisor by the same number will not change the quotient,
• divide whole numbers by a decimal divisor by multiplying the decimals by 10 or 100 so that the divisor is a whole number,
• divide decimal numbers by a decimal divisor by multiplying the decimals by 10 or 100 so that the divisor is a whole number,
• calculate the whole number or decimal quotient using long division and place the decimal point correctly in the quotient,
• solve word problems involving division where the divisor is a decimal.

#### Prerequisites

Students should already be familiar with

• multiplying decimals by 10, 100, and 1,000,
• how to write decimals (with up to two decimal places) as a decimal fraction with a denominator of 10 or 100.

#### Exclusions

Students will not cover

• dividing decimals where the quotient has more than three decimal places.