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 1 Lesson 21: Telling Time to the Hour — Telling Time (1.MD.B.3) mess around all you want, nothing here saves
88 BPM
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Grade 1, Lesson 21: Telling Time to the Hour

Math skill: Telling Time (1.MD.B.3)

How the beat teaches it: Every slot describes a clock's hour and minute hands at exactly the hour — read the hour hand and build that many quarter notes.

This is lesson 21 of 24 in RockBlocks Math, Grade 1, a free course where every lesson turns a math idea into something you can count, hear, and play. The previous lesson, Bridging Through 10 to Subtract,” covered subtract Within 20 (1.OA.C.6). Next is Lesson 22, Comparing Lengths.”

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.