Can you guess how many marbles are in the jar? Thrill with this fun and brightly coloured interactive estimating activity with rolling marbles that can be dragged and dropped into a container. Develop students’ skills in estimation, subtizing, counting, adding, subtracting, and a possible infinite number of other concepts with this flexible virtual manipulative specially designed for the elementary classroom.
Visit classplayground.com for more information about Estimation and Printables and Worksheets.