154 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 an Entry of a Matrix's Transpose
How the beat teaches it: Every slot gives a 2x3 matrix A — the transpose Aᵀ swaps rows and columns, so entry (i,j) of Aᵀ equals entry (j,i) of A. Find the requested entry. Build that many notes anywhere in the kit.
This is lesson 5 of 24 in RockBlocks Math, Linear Algebra, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, “Scaling a Vector to a Target Magnitude,” covered find the Scale Factor and Resulting Component Sum. Next is Lesson 6, “Determinant of a 3x3 Matrix.”
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.