| Objectives | Students will be able to: (1) subtract multiples of ten mentally (70-30); (2) explain via bundles leaving. |
|---|---|
| Materials | Bundles; chart; whiteboards; $10 coins. |
| Key vocabulary | take away tens, difference |
| Engage (starter) | (10 min) The change-of-heart vendor: had $70, spent $30 at the wholesale — bundles physically walk away: 7 tens lose 3 tens... 4 tens! |
| Develop (main) | (35 min) 1. Bundle departures for 50-20, 90-40, 60-60 (zero!). 2. Chart: -30 is three hops UP. 3. Whiteboard rally of eight. 4. Money stories: "Had $80, bought a $50 item — left?" |
| Plenary (close) | (10 min) Little-fact reveal: inside 70-30 hides 7-3. The clothes trick works both ways! |
| Assessment | Rally 6 of 8; one bundle explanation; money story correct. |
| Teacher notes | Same-day symmetry with W3D1 is deliberate — addition and subtraction of tens taught as mirror moves keeps the fact-family unity alive. |
| Objectives | Students will be able to: (1) subtract without regrouping (38-5, 57-24) using mats then columns; (2) check one answer by adding back. |
|---|---|
| Materials | Bundles; mats; column boards; the undo-check poster. |
| Key vocabulary | ones from ones, tens from tens, check |
| Engage (starter) | (10 min) 38 - 5: "Do the bundles wake up?" Still no! Ones handle ones: 8-5=3 → 33. |
| Develop (main) | (35 min) 1. Mat: 57-24 — 2 bundles leave, 4 ones leave → 33. 2. Column record, digits aligned. 3. Six problems mat-then-column. 4. The undo returns: 57-24=33 checked by 33+24 rebuilding 57 — the self-checking pledge renewed for Grade 2. |
| Plenary (close) | (10 min) One planted wrong answer on the board exposed by the undo-check. |
| Assessment | 4 of 6 correct; one undo-check performed; alignment tidy. |
| Teacher notes | Renewing the inverse-check habit in week 4 sets the tone for the year: answers are verified, not just hoped. |
| Objectives | Students will be able to: (1) choose the operation for one-step stories (money and objects); (2) solve mixed +/- problems fluently. |
|---|---|
| Materials | Story cards with Caribbean settings (mango tree yields, bus passengers, market spending); doors posters; whiteboards. |
| Key vocabulary | choose, join, take away, solve |
| Engage (starter) | (10 min) Two doors, one story: "The route bus held 46 passengers; 12 came off at the square." Arms vote; reasons demanded. |
| Develop (main) | (35 min) 1. Pairs sort and solve six stories (all regroup-free numbers). 2. One comparison guest: "Team A scored 38 runs, Team B 25 — how many more?" — cricket makes the difference question urgent. 3. Author one story per pair for the bank. 4. Bank raid on a neighbour's story. |
| Plenary (close) | (10 min) Justification circle: two door-choices defended by story sense. |
| Assessment | 5 of 6 solved with correct doors; comparison attempted; authored story valid. |
| Teacher notes | Cricket run-differences are the region's native subtraction problems — use the weekend's real scores whenever a match ran. |
| Objectives | Students will be able to: (1) identify symmetrical shapes by folding; (2) draw the line of symmetry; (3) complete a half-picture symmetrically. |
|---|---|
| Materials | Paper shapes; scissors; mirrors if available; half-pictures on grid; nature items (leaves!). |
| Key vocabulary | symmetry, line of symmetry, matching halves, fold |
| Engage (starter) | (10 min) The magic fold: a paper heart folded — the halves KISS perfectly. A rectangle? Yes! A random blob? No! Some shapes hide a folding line. |
| Develop (main) | (35 min) 1. Fold-test eight shapes; draw the fold line on the symmetric ones. 2. The leaf gallery: nature loves symmetry — test three leaves. 3. Complete-the-picture: half a butterfly/half a house finished square by square. 4. Snowflake-style cut: fold, snip, open — instant symmetry, every time, and the class gasps. |
| Plenary (close) | (10 min) Symmetry hunt from the seat: faces, windows, the flag? (Test the flag drawing!) |
| Assessment | Fold-tests 6 of 8; line drawn; picture completed with mirror accuracy. |
| Teacher notes | Symmetry is the year's gentlest geometry and its most beautiful — the cut-and-open reveal converts every child into a believer. National flags make a rich symmetric/asymmetric sorting extension. |
| Objectives | Students will be able to: (1) demonstrate the month's skills across strands; (2) complete the month-one checkpoint circuit. |
|---|---|
| Materials | All month's kits; month sheet per child; star stamps. |
| Key vocabulary | All September vocabulary |
| Engage (starter) | (10 min) Memory parade: a bundle, the chart, a ruler, a folded heart — September in four objects. |
| Develop (main) | (35 min) Checkpoint circuit: S1 place value (build, read, digit interview) + one comparison; S2 skip-count strips (2s/5s/off-decade 10s); S3 two additions and two subtractions (mixed rungs) + one undo-check; S4 one story with door choice; S5 measure in cm + one symmetry fold-test. |
| Plenary (close) | (10 min) Stars awarded; preview: "October brings numbers that CROSS the ten — and the clock learns quarter hours!" |
| Assessment | Month sheet recorded across five stations; the addition/subtraction rung profile is October's grouping map. |
| Teacher notes | This checkpoint is the regrouping-readiness gate: children shaky on ±10/±1 fluency or the ladder rungs get targeted support BEFORE crossing-the-ten arrives, not after it wounds them. |