Mental addition and subtraction up to 20
- Strengthening quantity sense and sequence of numbers up to 20
- Structuring numbers using the pattern of five
- Adding doubles and near doubles such as 6 and 6, 6 and 7
- Halving of numbers such as 6, 8, 10 and 12
- Number combinations of 10 – Visualizing and automatizing.
- Adding and subtracting mentally up to 20 using the structure of 5
Details
For use by teacher.
Wooden rack with 20 beads – with structure of alternating 5 white and 5 red beads. Rubber clip for locating numbers on the wooden rack. Bigger than the student Ganit rack.
1 per class/ for use by teacher
This product is also used in pre-primary classes.
