For this activity students will explore the concept of a ratio and use ratios to describe relationships between quantities. They will use red and yellow counting chips to explore in a hands on way, allowing them to visualize the concept as they create and simplify different ratios. I usually use this activity at the very beginning of our ratios and proportional reasoning unit, to help the students think about relationships rather than single quantities. I have also used this activity with my math intervention students.
The activity requires red and yellow counting chips, but also includes a digital copy of these manipulatives, which can be printed and copied on card stock in the absence of actual red and yellow counting chips. You can also substitute any other manipulative that you would like to use, as long as there are two quantities being compared.
This activity involves both independent work and partner work. I have also pulled a small group of students to complete this activity with me, for more scaffolding and support, as needed.