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 3 Lesson 12: Unit Fractions — Unit Fractions (3.NF.A.1) mess around all you want, nothing here saves
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Grade 3, Lesson 12: Unit Fractions

Math skill: Unit Fractions (3.NF.A.1)

How the beat teaches it: Every slot shows a shape split into equal parts — the denominator is how many equal parts make the whole; build that many quarter notes, one for each part.

This is lesson 12 of 24 in RockBlocks Math, Grade 3, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, Properties of Multiplication,” covered properties of Multiplication (3.OA.B.5). Next is Lesson 13, Fractions on a Number Line.”

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.