**MEADOWS OR MALLS?** This unit concerns making a decision about land use and builds on skills learned in Cookies about graphing systems of linear inequalities and solving systems of linear equations.

**HOW MUCH? HOW FAST?** This unit adds integrals to the derivative concepts explored in Year 2. Students solve accumulation problems using a version of the Fundamental Theorem of Calculus. They find that the derivative of the function that describes the amount of accumulation up to a particular time is the rate of accumulation, and that the function describing accumulation is an anti-derivative of the function describing the rate of accumulation.

**THE POLLSTER'S DILEMMA** The central problem of this unit concerns an election poll, and students use normal distributions and standard deviations to find confidence intervals and see how concepts such as margin of error are used in polling results.

**AS THE CUBE TURNS** Students study the fundamental geometric transformationsâ€”translations, rotations, and reflectionsâ€”in two and three dimensions, in order to create a display of a cube rotating around an axis in three-dimensional space.

**KNOW HOW** In this unit, students independently research mathematical concepts and skills that they either have not yet learned or may have forgotten. Students reflect on their future needs for independent learning, and consider what it means to really know something.