Term 1 Week 7 · Rounding to the nearest ten, hundred or thousand · CG Quarter 1, competency 12
| # | The misconception | Where it shows | What to do |
|---|---|---|---|
| 1 | "Five and up" on the wrong digit | Ask which digit they are looking at, and why that one | |
| 2 | Chain rounding — 149 → 150 → 200 | Day 3. Show the wrong method in full, then ask where it went wrong | |
| 3 | A number has only one "rounded form" | 149 is 150 to the ten and 100 to the hundred. Side by side on the board | |
| 4 | "A rounded number is wrong" | Not wrong — close enough. Nobody says "forty-three people at the market" | |
| 5 | The exact half — 4 500 | Up is an agreement, not a truth. Say so | |
| 6 | Always rounding down | 196 is 200, not 100. Measure it | |
| 7 | Cannot count the distance in 4-digit numbers | Allow subtraction. Measuring the distance is subtraction, and it should not be an obstacle |