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.

🎵 Grade 2 Lesson 23: Fractions: Thirds — Partitioning into Thirds (2.G.A.3) mess around all you want, nothing here saves
90 BPM
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Grade 2, Lesson 23: Fractions: Thirds

Math skill: Partitioning into Thirds (2.G.A.3)

How the beat teaches it: Every slot splits something into 3 equal shares — thirds are always 3 pieces, no matter what you split.

This is lesson 23 of 24 in RockBlocks Math, Grade 2, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, Comparing Lengths & Finding the Difference,” covered measurement Word Problems (2.MD.A.4). Next is Lesson 24, Reading Bar Graphs.”

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.