Other
Ohio Department of Education: Third Grade Achievement Test (Practice Test) [Pdf]
Half-length practice test for the third grade OAT (Ohio Achievement Test). The test includes 15 multiple-choice and 5 open-response question dealing with topics such as measurement (time, angles, ruler), data analysis (bar graphs,...
Math Playground
Math Playground: Cuisenaire Rods
Interactive cuisenaire rods where students can add various bars in length from 1-10 vertical or horizontal on blank or graph paper.