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 6: Fact Families — Related Facts (1.OA.B.4) mess around all you want, nothing here saves
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🎯 Lesson: 0/4 · 🥁 0 solved · 0 badges

Grade 1, Lesson 6: Fact Families

Math skill: Related Facts (1.OA.B.4)

How the beat teaches it: Every slot gives you a whole number split into two parts — build both parts, on two different instruments, to show the pair that makes up that fact family.

This is lesson 6 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, Flip It! The Commutative Property,” covered properties of Addition (1.OA.B.3). Next is Lesson 7, Doubles Facts.”

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.