Day 112 of 180Week 23 of 36, TuesdayThird quarter

The decoy number

๐Ÿ”ข Math๐Ÿ” Practiseโฑ๏ธ about 20 minutes

One problem with a number in it that is not needed. Spot the decoy before solving.

Reps on something already met. Short, and worth doing even on a bad evening.

Today is rung 6 of 10 on this topic

Word problems โ€” deciding what to actually do

Can do: Reads a story problem and knows whether it's an addition or a subtraction, then solves it.

Why it matters

Almost every maths failure from Grade 3 onward is a word-problem failure. Children who can compute but can't choose the operation stall hard.

What it looks like when it's wobbly

Grabs the two numbers in the problem and adds them, regardless of what was asked. Keyword tricks ("altogether means add") make this worse, not better.

โฑ๏ธ Two-minute check

"There were 12 birds. 5 flew away. How many now?" Then a harder shape: "I have 6. How many more do I need to have 14?"

Solid looks like: Both correct โ€” especially the second, which is a subtraction hiding inside an addition sentence.

The full activity for this topic ยท 10 minutes

Draw the Story

PaperPencil
  1. 1Read the problem twice. First time for the story, second time for the numbers.
  2. 2"Draw what's happening." Stick figures, boxes, dots โ€” anything.
  3. 3Ask the only two questions that matter: "Are we getting more, or fewer?" and "What are we trying to find?"
  4. 4Write the number sentence, then solve it.
  5. 5Answer in a full sentence: "There are 7 birds left." The sentence forces a sanity check.

If it's too hard

Act it out with real objects before drawing anything.

If it's too easy

Two-step problems, or ones with a number in them that isn't needed.

Say this

"Draw the story first. Is the answer going to be bigger or smaller than what we started with?"

Math practice

Week 23 at a glance

  1. Monday ยท Day 111

    ๐Ÿ“– Reading

    Twelve words, cold

  2. Tuesday ยท Day 112

    ๐Ÿ”ข Math

    The decoy number

  3. Wednesday ยท Day 113

    โœ๏ธ Writing

    Read it as punctuated

  4. Thursday ยท Day 114

    ๐Ÿ”ข Math

    Programme times

  5. Friday ยท Day 115

    ๐Ÿ”ฌ Science

    String telephone

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