Lesson Plan

Converting Fractions to Decimals

Encourage students to explain the relationship between decimals and fractions to help them with future computations. Use this lesson on its own or as support to the lesson Area with Decimals and Fractions.
Download lesson plan
This lesson can be used as a pre-lesson for the Area with Decimals and Fractions lesson plan.
View aligned standards
This lesson can be used as a pre-lesson for the Area with Decimals and Fractions lesson plan.



Students will be able to convert between decimals and fractions and explain their process.


Students will be able to explain how to convert decimals to fractions using models and peer conversations.


(5 minutes)
Large Blank Models for Fractions & DecimalsBlank Models for Fractions & DecimalsVocabulary Cards: Converting Fractions to DecimalsGlossary: Converting Fractions to DecimalsTeach Background Knowledge TemplateWrite Student-Facing Language Objectives Reference
  • Present students with a thought-provoking question that focuses on fractions and conversions to decimals. For instance, write the decimal fraction 85100 on the board and ask students to do the following on a sheet of copy paper:
    1. Say the number aloud and write its written form.
    2. Write the decimal equivalent.
    3. Determine if the number is greater than or less than ¾.
  • Ask students to complete the questions on their own and then exchange papers with their partners to read their ideas. Then, allow partners to talk about ideas they have in common.
  • Gather information about their background knowledge by listening to their discussion and their vocabulary use.
  • Provide a visual of 85100 on a hundredths model if students are struggling to complete the questions. Take note of students who will need extra help with fraction conversions so you can give them extra help throughout the lesson, or place them in a teacher-led small group during the Guided and Group Work sections.
  • Tell students today they will explain how to convert from a fraction to a decimal using hundredth models.