Counting patterns
Use counters to make a counting pattern of twos.
2 4 6 … What do you notice? What will the 6th number be? Now make a counting pattern of fives. What do you notice this time? What will the 11th number be?
1
All even numbers can be grouped exactly in twos or shared between 2 equal groups. Odd numbers cannot be grouped exactly in twos. Odd numbers leave a remainder when they are shared between 2 equal groups When we count by twos from an even number, the numbers we say are all even .
+2 +2 +2
0
2
4 7 +2 +2 +2 8 5 6
10
12
odd numbers even numbers
1
3
9
11
When we count by twos from an odd number, the numbers we say are all odd .
12
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03/05/2022 10:17
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