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### Fibonacci Nim

9-12

Represent numbers in other bases and convert to and from decimal representations, and then, learn how to play Static Nim.

### Investigating Pick's Theorem

9-12

Rediscover
Pick's Theorem, use algebra to determine the coefficients of the equation, and
explore the concept of change as a mechanism for finding the coefficients of
Pick’s Theorem.### Law of Sines and Law of Cosines

9-12

Learn the Law of Sines and the Law of Cosines and determine when each can be used to find a side length or angle of a triangle.

### Learn about Properties of Vectors and Vector Sums Using Dynamic Software

9-12

Develop
an understanding of vectors and their properties.### Least Squares Regression

9-12

Develop
skills in connecting, communicating, reasoning, and problem solving as well as
representing fundamental ideas about data.### Movement with Functions

6-8, 9-12

Use movement to reinforce the concepts of linear functions and systems of equations.

### Pi Filling, Archimedes Style!

9-12

Inscribe and circumscribe regular polygons in and around the
unit circle, which is known to have an area of π.### Shedding Light on the Subject

9-12

Explore the development of a mathematical model for the decay of light passing through water.

### The Regression Line and Correlation

9-12

Investigate
the relationship between a set of data points and a curve used to fit the data
points. ### To Fret or Not To Fret

9-12

Explore geometric sequences and exponential functions by considering the placement of frets on stringed instruments.