In earlier lessons, students were introduced to several units of weight and capacity (kilograms, grams, pounds, ounces, liters, and milliliters). In this lesson, students solve problems involving the units of capacity they worked with in grade 3. They use their knowledge of unit conversion and multiplicative reasoning to solve multi-step problems. Students may need to review the measurement units used in this lesson before the lesson to ensure access to the tasks.
- Use multiplicative comparison and unit conversion to solve multi-step problems about weight and capacity (in pounds, ounces, gallons, quarts, and cups).
- Let’s solve problems about weight and capacity.
Materials to Gather
- Gather a one-gallon jug (with or without milk), a one-quart container, and a one-cup container for display during the launch.
- On chart paper, create the table in the activity with an extra column for showing the amounts of lassi in cups, to be displayed during synthesis.
|Activity 1||20 min|
|Activity 2||15 min|
|Lesson Synthesis||10 min|
Teacher Reflection Questions
- Can You Draw It? (1–5), Stage 4: Area and Perimeter (Supporting)
- Rectangle Rumble (3–5), Stage 3: Factors 1–10 (Supporting)