Skip count fluently by 2s and 5s starting from zero.
Skip counting means counting by jumps bigger than one. Counting by 2s: 2, 4, 6, 8, 10 -- each jump adds two. Counting by 5s: 5, 10, 15, 20 -- each jump adds five.
Skip counting is a fast way to count a big pile of things, like shoes (by 2s for pairs) or fingers (by 5s for each hand).
Mastery looks like: They skip count fluently by 2s and 5s from zero to at least 20 or 25.
Common stumbles: Reverting to counting by ones partway through; skipping or repeating a number in the sequence.
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