Lesson 19
Flexible with Fractions (optional)
Lesson Purpose
Lesson Narrative
This optional lesson gives students additional opportunities to integrate and apply the work from this unit to solve novel contextual problems. All three activities prompt students to make sense of and persevere in solving problems that involve adding, subtracting, and multiplying fractions. In the first two activities, students think abstractly and quantitatively to relate their calculations to a situation (MP2). The last activity encourages students to identify structure in expressions with many different operations involving fractions (MP7).
Completing all three activities will take more than 60 minutes. Consider expanding the lesson across 2 days or selecting one or two activities based on students' needs or interests and time constraints.
 Representation
Learning Goals
Teacher Facing
 Interpret and solve problems that involve the addition, subtraction, and multiplication of fractions.
Student Facing
 Let’s solve all kinds of problems involving fractions.
Required Materials
Materials to Gather
Materials to Copy
 Find a Match
Required Preparation
Activity 1:
 Each group needs 12 small sticky notes measuring 1\(\frac{7}{8}\) by 1\(\frac{3}{8}\) inches.
Activity 3:
 Create one set of Match Cards for each group of 24 students.
CCSS Standards
Lesson Timeline
Warmup  10 min 
Activity 1  25 min 
Activity 2  20 min 
Activity 3  25 min 
Lesson Synthesis  5 min 
Cooldown  5 min 
Teacher Reflection Questions
Suggested Centers
 Compare (1–5), Stage 6: Add and Subtract Fractions (Addressing)
 Rolling for Fractions (3–5), Stage 2: Multiply a Fraction by a Whole Number (Addressing)
 Compare (1–5), Stage 3: Multiply within 100 (Supporting)
Print Formatted Materials
For access, consult one of our IM Certified Partners.
Additional Resources
Google Slides  For access, consult one of our IM Certified Partners. 

PowerPoint Slides  For access, consult one of our IM Certified Partners. 