Why it helps: Putting in order: each one is bigger than one neighbour and smaller than the other.

Why it helps: Patterns: spotting what repeats and saying what comes next, like the days of the week.

Why it helps: Explaining: finding a second answer and saying why, instead of stopping at the first.

Why it helps: Narrowing down: using each clue to rule pictures out until only one is left.

Why it helps: Changing rules: sorting the same things a new way, like when a game changes halfway.

Why it helps: Asking good questions: finding the answer by ruling several out at once, not guessing one by one.