standard_description: Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. (Students who can generate equivalent fractions can develop strategies for adding fractions with unlike denominators in general. But addition and subtraction with unlike denominators in general is not a requirement at this grade.) For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100.
Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.
problem_activity: Stage 4: Whole Number and Fraction Factors
Required Preparation
Materials to Gather
Colored pencils, crayons, or markers
Number cubes
Paper clips
Materials to Copy
Blackline Masters
Rectangle Rumble Stage 4 Spinner
Rectangle Rumble Stage 4 Grid

Narrative
Students generate factors with a number cube and a spinner with fractions with denominators of 3, 6, or 12. Students use a
\(24 \times 24\)
grid that represents 16 square units.
Additional Information
Each group of students need a paper clip, a number cube, and two different color writing utensils.


aligns: no