Units of Length
by Anonymous
Read millimeter ticks by placing objects on a 20cm ruler, then see one length as mm, cm, m, and km to pick the unit that fits best.
About this app
Length Units is an elementary math learning game about measuring and choosing units of length. Children adjust objects on a 20 cm ruler, read millimetres and centimetres, convert values among mm, cm, m and km, and complete short challenges about suitable units and comparisons.
Use cases
- Elementary students practising ruler measurements
- Teachers introducing millimetres and centimetres
- Learners practising conversions between mm, cm, m and km
- Children learning which unit suits small and large objects
Features
- Interactive 20 cm ruler with 1 mm and 1 cm markings
- Measurement missions including 10 cm, 6 cm 5 mm, maximum and minimum lengths
- Four-unit displays for selected objects
- Examples using objects from ants and rice grains to doors, bridges and marathons
- Quiz questions on conversion, unit choice and length comparison
- Score, streak and star tracking