Drag rhythmic values into up to 8 beat blocks per line to build a drum groove, or click a tile then click a block to place it — handy on a trackpad.
Math skill: Division with Remainders (4.NBT.B.6)
How the beat teaches it: Every slot divides with some left over — the full groups are how many BLOCKS you use on the bass drum (their total is whatever divides evenly), and the remainder is one last extra hit on the snare.
This is lesson 3 of 24 in RockBlocks Math, Grade 4, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, “Factors and Multiples,” covered factors and Multiples (4.OA.B.4). Next is Lesson 4, “Multi-Step Word Problems.”
💻 Code it: In CodeBlocks, b % 2 is the remainder of b ÷ 2. When it's 0 the beat is even, and that's where the snare goes. Try it in CodeBlocks.
Every slot above (A, B, C, D) is its own question, and it’s a real, blank RockBlocks beat the whole time — the same drag-and-drop tiles, kit, tempo, sheet music, and drummer view as anywhere else on the site. Tap ❓ Questionin the corner to read the current slot’s problem, build your answer right in the grid, then tap ✓ Check Answerto grade it. Once you’re done, keep going: expand the beat, drop it into a Stack, or save a copy to your own page — nothing here overwrites the lesson itself, so every visitor still starts from the same blank slots.