Lesson 20
Sticky Notes (optional)
Lesson Purpose
Lesson Narrative
This lesson is optional because it does not address any new mathematical content standards. This lesson does provide students with an opportunity to apply precursor skills of mathematical modeling. In previous lessons, students used diagrams, expressions, and equations to represent multiplication of a fraction by a whole number.
In this lesson, students apply their knowledge of fraction by whole number multiplication to create sticky note designs. They create a design given a set of constraints. Students describe their design to others before gaining access to the supplies to make their design.
When students make decisions and choices, analyze realworld situations with mathematical ideas, translate a mathematical answer back into the context of a (realworld) situation, and adhere to constraints, they model with mathematics (MP4).
 Action and Expression
 MLR8
Learning Goals
Teacher Facing
 Use addition, subtraction, and multiplication of fractions to model and solve a design problem.
Student Facing
 Let’s make a design using sticky notes.
Required Materials
Materials to Gather
Required Preparation
Activity 1:
 Gather rectangular sticky notes with fractional lengths. If this is not possible then cut rectangles from card stock with fractional lengths.
CCSS Standards
Addressing
Lesson Timeline
Warmup  10 min 
Activity 1  15 min 
Activity 2  30 min 
Lesson Synthesis  10 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
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Additional Resources
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