One-to-one correspondence in counting collections to 20
Exercise Difficulty 2 ~1 min math.gK.f.ns.one_to_one.ex_01

Count And Move

Prompt

Here is a pile of 8 counters. Count them by moving each one to the empty cup. How many?

M-K-F-EX-07-A Video Physical / non-image

30-second exemplar video: child's hands count and move 8 red counters from a scattered pile on the left to a clear plastic cup on the right, one at a time, saying each number aloud. Top-down camera angle. Used by teacher as the rubric anchor.

How it's presented
mode manipulative manipulative 8 two color counters and empty cup
starting arrangement
scattered_pile
Answer criteria
type cardinal answer
rubric
Moves each counter exactly once while saying one number per move.
expected
8
Hints
  1. Touch each counter and move it before saying the next number.
  2. When all the counters are in the cup, what number did you say last?
Misconceptions to watch
  • Counts the same counter twice when not moving (forgets which counted).
  • Says count-words faster than moving counters.
Used in lessons