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# Adding and Subtracting with Counters

Achievement Objectives:

Achievement Objective: NA1-1: Use a range of counting, grouping, and equal-sharing strategies with whole numbers and fractions.
AO elaboration and other teaching resources

Specific Learning Outcomes:

Solve addition problems to 20 by joining sets and counting all the objects.

Description of mathematics:

Number Framework Stage 1

Required Resource Materials:
counters
Activity:

Problem: Gary has 4 drinks in the cupboard and he buys 3 more drinks for his birthday party. How many drinks does Gary have now?

Record 4 + 3 on the board. The students solve the problem on counters.

Record 4 + 3 = 7 on the board.

Examples. Word stories and recording for: 3 + 5, 2 + 5, 6 + 2, 2 + 8, 4 + 4, 7 + 2….

Problem: Jules puts 8 boiled eggs on the breakfast table. Mary and Robyn eat one egg each. How many eggs are left?

Record 8 - 2 = on the board. The students use counters to solve the problem.

Record 8 - 2 = 6 on the board.

Examples. Word stories and recording for: 6 – 3, 10 – 3, 7 – 6, 9 – 1, 6 - 5