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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: N q.a.3: Dinosaur Bones

For Teachers 9th - 10th Standards
The purpose of this task is to illustrate through an absurd example the fact that in real life quantities are reported to a certain level of accuracy, and it does not make sense to treat them as having greater accuracy. Aligns with N-Q.A.3.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: N q.a.3, N q.a.1, N q.a.2: Weed Killer

For Teachers 9th - 10th Standards
The principal purpose of the task is to explore a real-world application problem with algebra, working with units and maintaining reasonable levels of accuracy throughout. Aligns with N-Q.A.3, N-Q.A.1, and N-Q.A.2.