2.MD.A.2 lessons
Measure the same length twice with units of different sizes and describe how the two measurements relate to the size of the unit. (A review from Grade 2.)
The Common Core State Standards for Mathematics code 2.MD.A.2 asks students to: “Measure the same length twice with units of different sizes and describe how the two measurements relate to the size of the unit. (A review from Grade 2.)” These Fieldbook lesson teaches it hands-on, with everyday materials, a printable teacher guide and a student sheet.
Measure It: Length, Time and Mass in the Real World Grade 3
- Whose foot is the right ruler? 50–60 min
Teams measure the same taped line on the floor in heel-to-toe steps and get different answers, then measure it again with metre sticks and all agree. Students explain why the world needs standard units, and measure their own feet to build a class line plot.
Printable practice pack
- Grade 3 Ontario Math: Spatial Sense Grade 3
Pages 11 (Estimate, Then Measure), 15 (Fill It Up: Capacity), 16 (Balance It: Mass), 17 (Same Thing, Different Units), 24 (Assessment Part 2: Measurement). Free sample
Pack pages are written to the Ontario curriculum; they show 2.MD.A.2 where the Ontario expectation matches it directly.
More Common Core standards for Grade 2
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