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 a Geometric Sequence (F-LE.A.1/A.2)
How the beat teaches it: Freshman year's last lesson: every slot is a sequence that doubles each time — find the requested term, then build it using exactly that many blocks on the crash cymbal for the big finish. This is a great one to drop into a Stack (the ‘…’ menu's Stacks link) and hear the growth repeat and build — or swap in any other kit piece you like.
This is lesson 24 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, “Arithmetic Sequences,” covered find the nth Term of an Arithmetic Sequence (F-BF.A.2). It is the final lesson in this grade.
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.