Grade
PK
Guess My Rule: Rubber Ducks
![Inside the circle: A group with 2 red duckies and 2 blue duckies. A group with 4 yellow duckies. A group with 3 red duckies and 1 blue ducky. Outside the circle: A group with 1 red ducky and 2 blue duckies. A group with 3 red duckies and 3 yellow duckies. a group with 4 yellow duckies and 1 blue ducky. A group with 1 red ducky and 1 blue ducky.](/sites/default/files/styles/large/public/activity-of-the-day/image2_22.png?itok=mOjMvb7k)
- Some groups of rubber ducks belong in the circle, and some do not. There is a rule to decide what belongs in the circle. What is the rule?
- Which rubber ducks belong inside of the circle? Circle them. How do you know?
![Group 1 has 1 blue ducky. Group 2 has 2 yellow duckies and 2 blue duckies. Group 3 has 3 red duckies and 2 blue duckies. Group 4 has 1 yellow ducky and 3 red duckies.](/sites/default/files/styles/large/public/inline-images/sWMF3zgIqRLe34rCkurR7Dhhx4u2uLZUmp8GJ3d4EgfanzVBHI.png?itok=dwhNQBb9)
3. Draw another set of rubber ducks that belong in the circle.
Printable Version
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Reference for Educators
Sample problems and solutions