Sorting and odd one out
Strategy card
Every group has a rule that fits all its members.
- Step 1: Name what all the group members share.
- Step 2: Make the rule exact (not just "animals", but "animals that fly").
- Step 3: Test each choice against the rule.
- Step 4: Pick the one that fits every part of the rule.
Tip: If more than one answer fits, your rule is too loose. Tighten it.
Worked example
Which word does NOT belong with the others?
- A: physics
- B: horse (the answer)
- C: ecology
- D: biology
- E: astronomy
Why: The other words are all branches of science. “horse” is not.
Your turn
Your turn 1 of 3
The figures in the box follow one rule. Which answer follows the same rule?
Your turn 2 of 3
Which word does NOT belong with the others?
Your turn 3 of 3
The figures in the box follow one rule. Which answer follows the same rule?
Keep practicing
Grown-ups: Ask: "Could there be another rule? Which is better?" Parent guide
Next lesson: Number patterns