math · Grade 3
Area and Perimeter Are Different
Distinguish square units of area from units along a boundary.
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Explore the related learning targets, foundations and possible next connections.
Learning goals
- Distinguish square units of area from units along a boundary.
Before you begin
Understand the words and representations introduced in the Explore activity.
Age and grade do not measure readiness. Adjust reading or adult support to preserve the intended learning goal.
Follow the sequence
Complete practice
Practice previewArea and Perimeter Are Different
Practice · Independent · 25 min
Distinguish square units of area from units along a boundary. A complete set with exploration, practice and application. Use the linked unit for the learning sequence and teaching guide.
1. Explore
Practice previewArea and Perimeter Are Different: Explore and Explain
Explore · Independent · 10 min
Distinguish square units of area from units along a boundary. A focused learn activity. Use the linked unit for the learning sequence and teaching guide.
2. Practice
Practice previewArea and Perimeter Are Different: Practice Independently
Practice · Independent · 10 min
Distinguish square units of area from units along a boundary. A focused practice activity. Use the linked unit for the learning sequence and teaching guide.
3. Apply
Practice previewArea and Perimeter Are Different: Apply and Create
Apply · Independent · 15 min
Distinguish square units of area from units along a boundary. A focused apply activity. Use the linked unit for the learning sequence and teaching guide.
Download the unit pack
Numbered activities, separate answer keys and a teaching guide in one ZIP. The pack uses the focused sequence; the complete practice sheet above is an alternative.
Teaching and response guide
- Begin with: Find the area of this grid in square units.
- Connect the response to: Find the area of a 6 by 2 rectangle.
- Ask students to apply the idea: Draw two different rectangles with area 12 square units.
Watch for: Accepting an answer without checking whether it uses the material and satisfies the requested relationship or criteria.
Check the answer criteria for each task. A supported explanation may have more than one acceptable response. These activities offer evidence to discuss; completing a sheet alone does not establish mastery.