Free curriculum · around 2 to around 6

Halving

Children share groups of large matching blocks between two mats, check every block has a partner and distinguish a complete equal split from an unmatched remainder.

The curriculum and lessons

1. Curriculum guide and teaching notesOriginal source
2. Scope and sequenceOriginal Markdown
3. The Two Equal Groups ReferenceOriginal Markdown
4. Two Blocks, Two PlacesWeek 1 · Original Markdown
5. Four Blocks, Two Equal GroupsWeek 2 · Original Markdown
6. Six Blocks With a Partner for EachWeek 3 · Original Markdown
7. Eight Blocks Without a SpareWeek 4 · Original Markdown
8. Ten Blocks, Five on Each SideWeek 5 · Original Markdown
9. Match Even When the Spaces ChangeWeek 6 · Original Markdown
10. Repair Two Unequal GroupsWeek 7 · Original Markdown
11. When One Whole Block Is LeftWeek 8 · Original Markdown
12. Choose a Split and Check ItWeek 9 · Original Markdown
13. Two Equal Parts From Up to TenWeek 10 · Original Markdown

About this edition

Source version 1 · 2026-09-09. around 2 to around 6. Original text is preserved; an adaptation should be saved as separate work.