Play it · Ages 3–4
The Tallest Tower
Stack it so it stands. Three challenges — each one changes what you have to do, not just how many of it there are. Nothing is timed and nothing is scored.
0 of 3 solved
Stack five blocks so the tower stands.
A block can only sit on a block the same size or bigger.
Five high
Ten minutes of stuck counts as the work.
Now do it away from the screen
The board is the warm-up. The year page has the same problem on paper, the hint ladder, the answer, the five-day week and three questions nobody can mark — which is where the twenty-five minutes actually go.