2.MATH.9.F
Use concrete models of square units to find the area of a rectangle by covering it with no gaps or overlaps, counting to find the total number of square units, and describing the measurement using a number and the unit.
Grade 2 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2012
Standard Unwrapping
AI-generated as a starting point — sign in to edit.Vocabulary
concrete modelssquare unitsarearectanglegapsoverlapsmeasurementnumberunit
Skills
- find (area of a rectangle using concrete models of square units) #dok2
- cover (rectangle with square units with no gaps or overlaps) #dok2
- count (total number of square units used to cover a rectangle) #dok1
- describe (the measurement using a number and a unit) #dok2
Learning Targets
- I can count the total number of square units that cover a rectangle. #dok1
- I can cover a rectangle with square units without leaving gaps or overlaps. #dok2
- I can find the area of a rectangle using concrete models of square units. #dok2
- I can describe the measurement of an area using a number and a unit. #dok2
- I can explain how square units help measure area by filling the rectangle completely. #dok3
Big Ideas
- Area can be found by covering a rectangle with unit squares, making sure there are no gaps or overlaps.
- Describing area requires both a number and a unit to communicate the measurement clearly.
Essential Questions
- How can I use square units to measure the area of a rectangle?
- Why must there be no gaps or overlaps when covering a shape with square units?
- How do I describe an area using numbers and units?
- What strategies can I use to make sure my measurement of area is accurate?
- Why is it important to use the same-sized square units when finding the area?