Description of mathematical task:
1. Divide the 12 counters in to three equal groups with all yellow sides up. What fractional part of the whole set is represented
by each group? Record how many counters are in 1/3.
2. Flip the counter in one group. What fractional part of the whole set is red? Yellow?
3. Continue this process with the counters into six, four, three, and two equal groups with all yellow sides up.
4. Record each result
Explore Fractions with Two-Color Counters
a: How many equal groups are there in 1/3s?
b: It sounds like a division.
c: I wonder if I can make multiplication equations, too.
Share/ Discuss the result in class
Grade: 4-5
Topics that the task develop: Division and fraction.
Materials: Two-colored counters.
Standards: Common Core State Standards – Practice
CCSS.Math.Practice.MP4
Model with mathematics.
CCSS.Math.Practice.MP5
Use appropriate tools strategically.