Skip-counting by 2s represents a sequence in which each whole number is 2 greater than the preceding number: 0, 2, 4, 6, and so on through 1,000. The learner connects this constant difference to movement of two units on a number line, identifies the resulting numbers as even, and understands the sequence as a foundation for equal groups, repeated addition, and multiplication; more advanced generalizations beyond this whole-number range are not included.
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Skip-counting by s means adding each time. On a number line, move spaces to the right for every count.
Example: Start at and skip-count by s four times.
So the sequence is:
Each number is greater than the number before it. These numbers are even numbers. Skip-counting by s is also like making equal groups of or adding again and again.
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