This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 3.00, as of 2009-07-25.
Technical Completeness: 3
Content Accuracy: 3
Appropriate Pedagogy: 3
This is a satisfying lesson on the relative size of an annulus. Students who already understand the relationship of area to linear dimension will be surprised by the intuitive result. Students derive the analytic result along the way.
Information - Target Practice
Students find the area of an annulus and find that the result is unexpectedly intuitive.