3 Teach and recheck · Years 3–4 free pilot
Regroup without changing the number
Reviewed by an experienced teacher. Not yet classroom-trialled.
Prepare to teach
Before using: check that the pupil can name units through thousands and show why 1 hundred = 10 tens (then 2 hundreds = 20 tens). If not, return to unit grouping with the teacher before using these pages.
Use: model with the equal-sized unit cells, ask every pupil to show or write an exchange, and check that the total stays unchanged. Use the worked pages and practice in an order and at a pace that suit the pupils. Fade the diagram and prompts as responses become accurate.
Aide preparation: rehearse the 3422 exchange and one likely error with the teacher. Return to the teacher if unit meanings remain unclear. No physical blocks are required.
Teaching guidance and answers
Keep teacher answers separate from pupil pages. Use the approved notes for modelling, feedback and next steps.
Open separate teacher notes and answersAfter teaching: five fresh questions
In class results, open 5 recheck questions beside a student. Use the questions as they are, or choose Create student link for automatically marked answers.
Open recheck links