144 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 Slope of a Perpendicular Line (G-GPE.B.5)
How the beat teaches it: Every slot gives a line's slope as a fraction — a perpendicular line's slope is the negative reciprocal (flip it and switch the sign). Build the new slope's numerator on the high tom and its denominator on the rimshot.
This is lesson 21 of 24 in RockBlocks Math, Grade 10, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, “The Midpoint Formula,” covered find the Midpoint of a Segment (G-GPE.B.6). Next is Lesson 22, “Volume of Prisms and Pyramids.”
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.