This Bulletin Board Set covers the ideas of rates, ratios, and proportions. It contains 16 FULL PAGE, color posters with pictures and definitions to review the key ideas rates, ratios, and proportions.. For each there is a definition page along with visuals. Every basic idea about rate, ration, unit rate, unit ratios, equivalent ratios, writing ratios, setting up proportions, etc have been included. All of the posters are color coded. Rate posters are blue, Proportion posters are green, Ratio posters are blue.