Sort and classify objects by one attribute (color, shape, size) and count each category
Exercise Difficulty 3 ~3 min math.gK.f.ds.sort_classify.ex_02

Re Sort By New Rule

Prompt

You sorted by color. Now RE-SORT the same blocks by SHAPE. Show me your new groups.

M-K-F-EX-37-A Photograph
Photo: the same 12 attribute blocks now in 3 hoops sorted by shape — one hoop has 4 triangles (mixed colors red/blue/yel

Photo: the same 12 attribute blocks now in 3 hoops sorted by shape — one hoop has 4 triangles (mixed colors red/blue/yellow); one hoop has 4 squares (mixed colors); one hoop has 4 circles (mixed colors). Sort-label cards showing 'TRIANGLES,' 'SQUARES,' 'CIRCLES.'

How it's presented
mode manipulative followup
starting state
blocks_sorted_by_color
Answer criteria
type re sorted set
rubric
Blocks re-organized so each new hoop contains only one shape (regardless of color).
Hints
  1. Forget the colors. Look at the shape of each block.
  2. All the triangles together — even if they're different colors.
Misconceptions to watch
  • Cannot re-sort (insists on keeping color groupings).
  • Mixes color + shape rules in the re-sort.
Used in lessons