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Completing the square is applied to the general quadratic to derive the quadratic formula.

This lesson introduces completing the square as a means of expanding the set of quadratic equations that may be solved beyond the extraction of roots and factoring.

The lesson begins with an exploration of the family of graphs of $y = ax^2$, with an emphasis on tracking the changes in the $y$-values for differing values of the parameter $a$.

The lesson begins with a situation where the height of a pop fly in baseball is modeled using a quadratic equation.

This lesson introduces quadratic equations and graphs. Equations of the form $ax^2 + c = 0$ are solved via extraction of roots.

An introduction to solving a 3x3 linear system of equations. Back substitution and triangular form are first introduced, and then a general procedure for solving systems is presented.
An introduction to solving systems of equations using substitution and elimination. There are both applications based and non applications based problems.
A calculator based introduction to systems of linear equations.
Using real world data, this lesson introduces linear regression using lines of best fit that may calculated by hand by selecting two pints that appear to fall on the line of best fit.
"Description: The main purpose of this lab is to understand work rates and how working together affects the time it takes to complete a large task.