RCDSB 10 Block Challenge - Grade 3 & 4. What can you create with the 10 blocks provided? You must use all of the blocks at least once, but you may use them twice, or as many times as you would like. We know you can create amazing projects with more blocks, but be as creative as you can with only the 10 blocks provided. Once you are finished, submit your project to the studio. All projects must follow the RCDSB Code of Conduct and the Scratch Community Guidelines.