EDI1838 Features: * Estimation station * No more wild guesses * Perfect way to teach your students to make logical, mathematical estimates * Simply send this jar home with a student to be filled and counted * Students use that information to formulate educated estimations about the number of pieces in the jar * Clearer and easier than home-made jars with hard-to-view contents Includes: * Then fill the included proportional scoop and share that number with your class