Sorting and Classifying — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which one does not belong: apple, strawberry, blueberry, tomato?
A) Blueberry
B) Apple
C) Strawberry
D) Tomato
Blueberry is blue while the others are red, so blueberry is the odd one out by color.
2. Which one does not belong: cat, dog, fish, rabbit?
A) Cat
B) Fish
C) Dog
D) Rabbit
Fish lives in water while cats, dogs, and rabbits live on land, so fish is odd.
3. Which one does not belong: circle, square, triangle, red?
A) Circle
B) Square
C) Red
D) Triangle
Red is a color while circle, square, and triangle are shapes, so red is the odd one.
4. Which one does not belong: big elephant, big truck, big bus, small bird?
A) Big elephant
B) Big truck
C) Big bus
D) Small bird
Three items are big, but the small bird is small, so the small bird is the odd one out.
Part B: Fill in the Blank
Write the correct answer on each line.
1. We can sort animals into land, water, and air groups.
Animals that fly belong in the air group, the third group besides land and water.
2. Three groups can be big, medium, and small.
Sorting by size into three groups uses big, medium, and small as the three labels.
3. If a group has 3 red and 1 blue, the odd item is blue.
Three items are red and only one is blue, so blue is the odd one out by color.
4. When 4 items are big and 1 is small, sort the small one out.
The small item does not match the big group, so it sorts out as the odd one.
5. Sorting into three groups is harder than two groups.
Two groups is fewer than three groups, so sorting into three groups is harder.