Grade 6 · 50 minutes
This worked example is an illustrative lesson plan. Adapt the materials, timing, and supports to your learners.
Learning goal
Compare two prices by calculating their unit rates and explain which is the better buy.
Barrier to address
A price comparison presented only as a paragraph can hide the quantities students need to reason with. Requiring one notation can also obscure valid proportional reasoning.
Representation
Show two offers: 4 notebooks for $6 and 6 for $8.40. Provide the prices in text and a labeled table. Model how a ratio table and a double number line show the same relationship using a different pair of prices.
Engagement
Invite students to choose a second shopping example after the shared task and compare their reasoning with a partner.
Action and expression
Students can use a ratio table, a double number line, or equations. Ask each student to label the units and explain that $1.40 per notebook is less than $1.50 per notebook.
Assessment and feedback
Use an independent exit ticket with a fresh pair of prices. Check both unit rates, correct units, and a comparison supported by the rates. Give feedback on any reversal of dollars per item and items per dollar.
Reflection after teaching
Review whether students compared rates or total prices. If totals still dominate, begin the next lesson by comparing equal quantities.
Plan your own lesson
Start with the blank UDL Lesson Plan Template and review your plan with the Assessment Checklist.