84 BPM
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4/4 ×2
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: Unknown Numbers in Equations (1.OA.D.8)
How the beat teaches it: Every slot hides a different number in the equation — sometimes the answer, sometimes the starting number. Figure out what's missing and build that many hits.
This is lesson 14 of 24 in RockBlocks Math, Grade 1, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, “True or False? The Equal Sign,” covered meaning of the Equal Sign (1.OA.D.7). Next is Lesson 15, “Counting Patterns: Skip Counting by 2s & 5s.”
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.