Learning Resources Primary Time Teacher Clock 24-Hour. This brightly coloured clock will engage young children as they develop an understanding of time. This student clock has been designed specifically with learning time in mind. Colour coded with blue minutes and minute hand and red hours and hour hand, this clock is geared so that the hands move in accurate increments. This learning clock will develop an understanding of analogue time telling with the clock face but also features a window showing the corresponding digital time and AM or PM. This window can be hidden for assessment purposes. Clock measures 22.5 cm height. Suitable for ages 3 years and above.