Classify objects into categories and count the number of objects in each category (K.MD.B.3)
Exercise
Difficulty 2
~2 min
math.gK.s.ex_32
Sort Buttons
Prompt
Sort 10 buttons into 2 categories: 2-hole and 4-hole. Count each category. Record on tally chart.
M-K-S-EX-32-A
Manipulative
Physical / non-image
Photo of a sorting mat with two labeled zones ('2-HOLE' and '4-HOLE'), 10 mixed buttons scattered above, and an empty tally chart at the right.
How it's presented
mode
manipulative
Answer criteria
type
tally chart
total must equal
10
categories required
2
Hints
- Look at each button. How many holes?
- Place in correct zone. Then count each zone.
Misconceptions to watch
- Sorts by color
- Loses track of total
Used in lessons