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The lesson begins with graphs of the Dow Jones Industrial Average and water levels of Lake Huron where points on the graph are interpreted.

The lesson begins with a discussion about growth factors and percent increase, leading to the presentation of the compound interest formula.

Beginning with a formal definition of an exponential function, the lesson then compares the graphs of increasing and decreasing exponential functions.

The lesson begins with horizontal and vertical lines, first looking at the corresponding sets of points that comprise each, then using the points to find the slope of each type of line.
The lesson begins with using the lcd to clear the fractions in the equation, and then a review of proportions follows to motivate the "shortcut" of cross multiplication for equations containing on
The lesson begins with a definition of a "complex" fraction and then presents a procedure for simplifying them (multiplying the numerator and the denominator by the lcd of all fractions contained
The four arithmetic operations on fractions are given here, but in each case examples of using the operation on ordinary fractions is first reviewed, helping to ground the new material in the unde
The lesson begins with the definition of an algebraic fraction and then a quick review of the fundamental principle of fractions.
Beginning with the definition of a polynomial, polynomial multiplication and degree of polynomial products are introduced.
This lesson introduces logarithmic scales as a means for plotting data that might otherwise be difficult plot due to their widely varying values.