Patterns and Ratios A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines.


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Title Patterns and Ratios
Description Students use ratios to describe the relationship between two quantities. They use the matching patterns in the necklaces. They use ratio to solve problems involving proportional relationships. This lesson is aligned to the GoMath curriculum but can be used in any classroom discovering ratios for the first time.
Subject Mathematics
Level K-5, Middle School
Type Guided Activity
Duration 60 minutes
Answers Included No
Language English
Keywords equivalent ratios, fractions, ratios
Simulation(s) Proportion Playground (HTML5)


Author(s) Ian Whitacre, Sebnem Tekin
Contact Email amanda.mcgarry@colorado.edu
School / Organization PhET
Date submitted 12/13/17
Date updated 9/6/18