The point at which matter boils.
How to find the slope if you're given 2 points.
How to construct a perpendicular line at a point on a line.
How to use point-slope form of a line.
How to describe and label point, line, and plane. How to define coplanar and collinear.
Understanding the colligative property of solutions that decreases the freezing point.
How to plot points and name quadrants.
Understanding the colligative property of solutions that elevates boiling point.
How to define point of concurrency; how to identify the four main points of concurrency in triangles.
How to show that a function is discontinuous at a point x=a because it is not defined there.
How to write the equation of a line in point-slope form.
How to find a two-sided limit by investigating one-sided limits.
The properties of the three phases of matter.
How to solve a three part inequality.
How to solve a system of linear equations in three variables.
How to derive the formula for the midpoint of a segment in three dimensions.
How to solve a system of linear equations in three variables that yields no, or many solutions.
How to construct the incenter using a compass and straightedge.