Sorting and Classifying — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A big red ball and a small red ball share the color red.
When sorting by color, both balls are red even though the sizes are different.
2. A small blue block goes with other small blocks by size.
Sorting by size means putting all small items in one group together.
3. A spoon and a pot belong in the kitchen group at home.
Spoons and pots are used in the kitchen, so they sort into the kitchen group.
4. A pillow and a bed belong in the bedroom group.
Pillows and beds are used in the bedroom, so they sort into the bedroom group.
5. Big shapes and small shapes can sort by size.
Sorting by size groups items based on how big or small they are.
6. Red, blue, and green sort items by color.
Red, blue, and green are colors, so the sorting rule is color.
7. Circles, squares, and triangles sort by shape.
Circle, square, and triangle are shapes, so the sorting rule is shape.
8. When you find what makes a group alike, you find the rule.
The sorting rule is the attribute that all items in one group share.
9. Two big red balls and one small red ball share color but not size.
All three balls are red, so they share color, but the sizes are not the same.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Apple, Strawberry, Tomato
→ Sorted by color red
Sorted by color red
Big elephant, Big truck
→ Sorted by big size
Sorted by big size
Spoon, Pot, Plate
→ Used in the kitchen
Used in the kitchen
Bed, Pillow, Lamp
→ Used in the bedroom
Used in the bedroom
Each group on the left shares one rule, and the right side names that rule.