136 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: Find the nth Term of an Arithmetic Sequence (F-BF.A.2)
How the beat teaches it: Every slot gives a sequence that adds the same amount each time — find the requested term, then build it using exactly that many blocks, so the term's position becomes the beat's own time signature.
This is lesson 23 of 24 in RockBlocks Math, Grade 9, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, “The Quadratic Formula,” covered solve Quadratic Equations Using the Quadratic Formula (A-REI.B.4a). Next is Lesson 24, “Geometric Sequences and Exponential Growth.”
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.