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## Which One & Why?

Another way to use Sticky Math, which emphasizes constructing a viable argument and provides an opportunity to critique the reasoning of others (MP3).

### Geometry

##### The Relationship between the Area of a Circle & its Circumference, Part Two: What does it Mean?

What is the relationship between the area of a circle and its circumference and what does it mean? For how we got here, see part one.

##### The Relationship between the Area of a Circle and its Circumference, Part 1: Manipulating Formulas

How can you use Sticky Math to help students understand the manipulation of formulas? What is the relationship between the area of a circle and its circumference and what does it mean?

##### Circumference of a Circle & the Meaning of Pi

Build fluency from conceptual understanding as students make connections between representations of circumference. Remembering a relationship is easier than remembering an abstract formula. Apply & extend understanding of a linear term in algebra.