Absolute Value of Functions
Discover how functions behave when involving absolute values. This question set deals heavily with graphs of functions and how they change when their absolute value is taken. 
Absolute Values
This question set explains the definition of absolute values in piecewise notation. The properties of absolute values will then be explored, including those with inequalities.
Phases of the Moon: Part II
Have you looked up at the Moon and wondered what causes the Moon’s phases? We all know that the Moon’s appearance seems to change over the course of a Month, but why? This is part 2 in the series of question sets.