Gallery
Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.
Area and Units
Tile and count 1 cm squares, then stretch each side to see why 1 m² is 10,000 cm², not 100.
by Anonymous
Units of Length
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.
by Anonymous
Weight and Capacity
Stack 1kg, 100g, 1L, and 100mL blocks to see that 1kg=1000g and 1L=1000mL, then convert mixed units.
by Anonymous