An analogue clock, a clock with hands, shows the numbers 1 through to 12 ... You see this most often on digital clocks. Complete this interactive activity to understand the 12 and 24-hour clock.

Here’s a design for a split-flap clock that doesn’t do it the usual way. Instead of the flaps showing numbers , Klapklok has a bit more in common with flip-dot displays. Klapklok updates every ...