Day 9 of 180Week 2 of 36, ThursdayFirst quarter

Explain it to a ten-year-old

✏️ Writing💡 New today⏱️ about 30 minutes

Explain something they understand well to someone four years younger, defining every term.

Something new, or a fresh angle on it. Expect this one to take the full time.

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Today is rung 1 of 12 on this topic

Explaining something clearly

Can do: Writes an informative piece with clear organisation, defined terms and relevant examples.

Why it matters

Explaining is the test of understanding. Confused writing is nearly always confused thinking, and it's much easier to spot on paper.

What it looks like when it's wobbly

Assumes the reader already knows the topic, so terms go undefined and the piece only makes sense to someone who didn't need it.

⏱️ Two-minute check

"Explain how something works to someone who knows nothing about it."

Solid looks like: Terms defined on first use, and a logical order.

The full activity for this topic · 20 minutes

Explain It to a Ten-Year-Old

PaperA younger sibling or an imaginary one
  1. 1Pick something they genuinely understand — a game, a sport, a process from science.
  2. 2Write the explanation for someone four years younger.
  3. 3Circle every technical term and check each is defined the first time it appears.
  4. 4Add one analogy or example.
  5. 5Test it on an actual younger person and note exactly where they got lost.

If it's too hard

Explain one step of a process in a single paragraph.

If it's too easy

Explain something abstract — inflation, natural selection — without jargon.

Say this

"You used that word without explaining it. Would your cousin know what it means?"

Writing practice

Week 2 at a glance

  1. Monday · Day 6

    🔢 Math

    Build a ratio table

  2. Tuesday · Day 7

    📖 Reading

    The shortest quote

  3. Wednesday · Day 8

    🔢 Math

    Keep the scales level

  4. Thursday · Day 9

    ✏️ Writing

    Explain it to a ten-year-old

  5. Friday · Day 10

    🔬 Science

    Cell, tissue, organ, system

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