Maths Mela, period by period — fitted to your timetable.
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Nani Maa's Hidden-Seed Magic Trick
Lesson
Children often count all visible seeds from scratch rather than reasoning from the total; encourage the question 'What do we already know?' to redirect attention to the total as the starting point. The concrete act of hiding and revealing is essential before any written table work, so give the physical play its full unhurried space. A common slip is writing the visible count in the hidden column — a quick check of one row with seeds still on the table corrects this immediately.
0–8The teacher reveals Nani Maa's magic trick: show a small pile of seeds, hide some under a handkerchief, announce the total. Children guess the hidden count by thinking 'what do I add to what I see to reach the total?' Invite two or three children to try guessing aloud and share their reasoning.
8–22Children work in pairs with seeds and a handkerchief. One partner hides seeds while the other records total and visible counts on a small paper strip. They swap roles so both experience hiding and finding. Each pair aims to complete all six total-and-visible pairs from Let us Do, p.29 ("Perform the hidden-seed magic trick…").
22–33Pairs complete the six-row table in Let us Do, p.29 ("Perform the hidden-seed magic trick…") by writing the hidden count beside each pair. The teacher circulates, prompting: 'How did you figure out that number?' Children are encouraged to say the number sentence aloud: 'I saw 4, total is 9, so 5 are hiding.'
33–40Brief whole-class share: a volunteer reads one row of their table, and the class checks by acting it out. The teacher draws attention to the pattern — total, visible, and hidden form a tight trio — and names the idea of a missing addend without formal vocabulary pressure.
Let us Do, p.29 — Perform the hidden-seed magic trick with friends; write the number of hidden seeds in the table for six total-and-visible pairs.
There are 11 seeds in all. You can see 4 seeds on the table. How many seeds are hiding under the cloth? Show how you know.
7 seeds are hiding. The child should show 4 + 7 = 11 or 11 – 4 = 7.
Also saved as 7 periods or 9 periods.
- 2Balushahi Boxes and the Tens Frame Bridge
Lesson - 3Stamp Stories: Three Paths on the Bead String
Lesson - 4How Many More? Then Jump by Tens
Lesson - 5Fluency on the Ginladi: Four Computations and Jump Tables
Lesson - 6Moving on the Hundred-Chart: Arrows Show the Way
Lesson - 7Nani Maa's Newspaper Puzzle: Rows, Columns, Diagonals
Lesson - 8Radish Harvest: Box Diagrams and Matchstick Bundles
Lesson - 9Apple Harvest: Estimating Beyond 100 and Finding the Difference
Lesson - 10Word Problems, Race to 100, and Estimation Matching
Lesson - 11Nani Maa's Grand Tour: Connecting Every Model and Strategy
Lesson
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