100 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: Comparing Fractions with Unlike Denominators (4.NF.A.2)
How the beat teaches it: Every slot compares two fractions with different denominators — figure out which is bigger, then build only that fraction's numerator.
This is lesson 13 of 24 in RockBlocks Math, Grade 4, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, “Equivalent Fractions,” covered equivalent Fractions (4.NF.A.1). Next is Lesson 14, “Adding Fractions with Like Denominators.”
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.