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© 2019 by TailorED Instruction Inc.

Ratios and Rates

Plan your

Intro to Ratios

lesson

Lesson Objective:

Students will be able to define a ratio as a way of relating and comparing two quantities as well as write ratios as a fraction (a/b), a:b, or in words – a to b. In addition, students will be able to model a ratio using a tape diagram and write a ratio as a fraction.

Prior Knowledge

Vocabulary

Ratio

Term

Quantity

Comparative

Relationship

Understand and be able to identify a part vs a whole when looking at two quantities.

Activities

Differentiate your instruction by grouping your students by their needs and choose the most effective activity for each group

Increase Confidence

Challenge Your Students 

Increase Motivation

Ratio Pictures

Ratio Pictures

This activity includes an explanatory review of the topic and prompts the students to write ratios based on a picture set. (Click on "Introduction to Ratios: Pictures")

Pictures and Visuals

Mini Marshmallow Ratios

Mini Marshmallow Ratios

In this activity, students work in pairs to use mini marshmallows to help them write ratios based on the colors of marshmallows they have.

Manipulatives

Ratio Task Cards

Ratio Task Cards

This activity is made up of 20 ratio task cards. Students draw a card and attempt to answer. I

Math Games

Ratio Martian

Ratio Martian

This activity is a computer game, in which students pretend to be a Martian who enjoys eating examples of ratios.

Math Games

Ratio Scavenger Hunt

Ratio Scavenger Hunt

This activity leads students on a scavenger hunt for ratios. The students are prompted to search for different quantities and write a ratio, three ways, using their findings.

Quest

Concept of Ratios

Concept of Ratios

This activity has real-world examples of ratios. Students read through each example and write a ratio that matches what is described. (Scroll down and click on "Practice Worksheet")

Real World Examples

Teacher

Tips

Remind students that ratios can be written as a fraction, but unlike regular fractions, which only compare a part relative to its whole, a ratio can compare a part to its whole or a part to another part.

Students sometimes assume that the denominator in a ratio is the quantity of the whole, when it may be another part.

Have students work together to correct each other’s work

Create Your Own Differentiated Lesson

Differentiate your instruction in just minutes by grouping your students and finding the most effective activities based on their holistic needs.

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