Number sense and mental addition-subtraction up to 200
- Opportunities to count and develop quantity sense up to 200.
- Discovering pattern of ten and hundred for structured counting up to 200, for understanding grouping into hundreds, tens and ones.
- Understanding meaning of symbols for numbers, for ex. 125 is 100 and 20 and 5 (Using Maan cards along with Ganitmala)
- Arranging numbers in ascending and descending order. Identifying the position of a number on number line.
- Consolidating sequence of numbers (so that there is no need to teach before and after!)
Mental arithmetic
- Activities for supporting addition and subtraction mentally
Multiplication activities (Using number catchers along with Ganitmala)
- Factors, common factors, HCF, LCM
- Prime numbers
- Commutative, distributive properties of operations
Details
For whole class use to support development of number sense up to 200. String with 200 beads – with alternating 10 white and 10 red beads of 100 structure and 10 blue and 10 sky beads of 100 structure. Rubber clip and 5 blank empty cards for locating numbers on the mala.
Includes writeup with details of activities.
1 per classroom
Ganitmala 200 is also used in Middle classes.
