Kindergarten Spring Math — Compose/Decompose to 10, Addition & Subtraction within 10, Teen Numbers as Ten-and-Ones, Measurement, and Classification
Math · NS
K
math.gK.s.ns.count_to_100_continued
Count to 100 by ones and by tens (K.CC.A.1) — continued fluency + skip-count stretch
Maintain and extend K-Fall counting-to-100 work. Count to 100 by ones with at most one teen-decade-boundary error. Count to 100 by tens (10, 20, 30, ..., 100). Count forward from any given number to 100 (e.g., start at 47). Stretch: skip-count by 5s to 50 (5, 10, 15, ...) at the concrete tier (count groups of 5 fingers, count nickels, count tally marks in fives). Stretch: skip-count by 2s to 20 (pair up two-color counters and count by twos).
Mastery threshold
90%
Min instances
12
Typical minutes
15
Spaced intervals (days)
1, 3, 7, 14, 30, 60
Successors
-
math.g1.f.ns.count_to_120
(not yet loaded)
-
math.g1.s.ns.skip_count_2s_5s_10s
(not yet loaded)
Common misconceptions
- Teen-decade boundary error persists: '...28, 29, 20...' instead of '...28, 29, 30...' (Fuson 1988).
- Confuses -teen with -ty (fourteen / forty, fifteen / fifty) when listening to a teacher count and trying to follow.
- Skip-counting by 5s degenerates into counting by ones at the boundary (5, 10, 15, 16, 17, ... — drops the skip).
- Cannot count forward from a given number — restarts at 1.