Subitize quantities 1-5 (perceptual) and 6-10 (conceptual)
Exercise Difficulty 1 ~1 min math.gK.f.ns.subitize.ex_01

Dot Flash

Prompt

I will flash a dot card for 2 seconds. Tell me how many you saw — without counting!

M-K-F-EX-05-A Manipulative Physical / non-image

Photo of the 5-card dice-pattern subitizing flash deck on a wooden table: cards show dice-1 (single center dot), dice-2 (diagonal corners), dice-3 (diagonal), dice-4 (four corners), dice-5 (four corners + center). 3-cm dots, white cards, black border.

How it's presented
mode flash card sequence
cards
dice_3dice_2dice_5dice_1dice_4
duration ms
2000
Answer criteria
type sequence match
expected
32514
Hints
  1. Don't try to count. Just look and see.
  2. Did the dots look like a familiar pattern (like a dice face)?
Misconceptions to watch
  • Tries to count individual dots (no subitizing yet).
  • Says 'I don't know' (anxious about answering without counting).
Used in lessons