Recognize and use structures in number recognition (e.g., 1000 as 10 H or as 100 Z).
Use the structure of the tens system (bundling, place value) in a planned and systematic way and justify relationships between different number representations (e.g., place value notation, step notation:
734 → 7H 3T 4U, number word, units / rods of ten / hundred flats),
To be confident about the decadal place value system.
Compare spatial contents of simple solids by building with unit cubes and counting unit cubes.
100 units20 rods of five20 rods of ten10 hundred flats1 thousand cube made of RE-Wood®.
Packed in RE-Wood® box with lid and cardboard box with instructions.