Sorting and Classifying — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A shape that is red AND round goes in the overlap.
The middle space holds items that fit both rules, so red and round both go in the overlap.
2. A blue square goes in the blue circle but NOT the round circle.
A square is not round, so it stays in only the blue circle and skips the round circle.
3. A red ball is red and round, so it goes in the overlap.
A red ball matches both color and shape rules, so the overlap is where it belongs.
4. Sort by color, size, and shape for three attributes.
Shape is the third attribute after color and size, finishing the three-rule sorting set.
5. A big yellow triangle is big, yellow, and a triangle.
Triangles have three sides, so the third attribute names its shape in the sorting rule.
6. Two circles that share a middle space make a Venn diagram.
A Venn diagram uses two circles with a shared middle to show items in both groups.
7. If a shape fits NO rule, it goes outside the diagram.
Shapes that match no rule belong outside both circles since they fit neither group.
8. A small green square is small, green, and a square.
Squares have four equal sides, so the third attribute is shape, naming it a square.
9. An item with two matching rules goes in the shared space.
The shared space holds items matching both rules, the heart of any Venn diagram.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Red AND round shape
→ Goes in the overlap
Goes in the overlap
Blue only, not round
→ Stays in blue circle
Stays in blue circle
Round only, not red
→ Stays in round circle
Stays in round circle
Fits no rule at all
→ Goes outside both
Goes outside both
Each rule decides a spot, so matching attributes to zones builds clear Venn thinking.