Content Showcase: Video Library

This video looks at the algebraic properties of equations of parallel lines. Included is a geometric proof.

This video looks at the algebraic properties of equations of perpendicular lines. Included is a geometric proof.

This video looks at the identity function. Students review the identity properties of addition and multiplication as a means of better understanding the identity function.

This video looks at multiple representations of functions, including symbolic, tabular, and graphic. Examples of linear, quadratic, polynomial, and exponential functions are shown.

This video looks at using the Point-Slope Form to find the equation of a line in Slope-Intercept Form.

This video looks at using the Point-Slope Form to find the equation of a line in Slope-Intercept Form. However, in this case a table of coordinates for the linear function is the starting point. This involves first calculating the slope using the slope formula.

This video looks at the Line of Best Fit. A real-world data set is analyzed, from which a linear function in slope-intercept is derived. Students are shown how to find the line of best fit using a TI graphing calculator. Strategies for estimating the line of best fit are also explored.

This is part of a collection of video tutorials on the topic of Ratios and Proportions. This series includes a complete overview of ratios, equivalent ratios, rates, unit rates, and proportions. The following section will provide additional background information for the complete series of videos.

This video looks at x-y intercepts and their importance. Examples from linear and non-linear functions and relations are explored.

This video shows how to find the equation for the axis of symmetry for a parabola, given the equation of the parabola in standard form or vertex form. Students are shown the equivalence of vertex and standard forms, and how to find the coordinates of the vertex.

This video describes the properties of a parabola's maximum or minimum. Students are shown how to solve problems involving the parabola's maximum or minimum.

This video describes the properties of parabolas whose equations are written in vertex form. Students are shown how to convert from standard form to vertex form and vice-versa.

In this video, learn how to simplify factorial expressions, as well as learn the basics of permutations and combinations.

In this video tutorial learn about perimeter in the context of triangles. Several examples of calculating a perimeter are shown: whole number sides, decimal sides. Then we look at triangles one of whose sides is a variable. The resulting perimeter is an algebraic expression.

Why are there 12 hours in a clock rather than 10? In this video we explain why 12 is the preferred number for clocks and calendars. 

Learn different strategies for adding fractions. The Strategy Packs provide alternate ways of solving the same problem, giving your students different approaches to the same problem. The goal of the Strategy Packs is to encourage your students to think strategically when solving math problems.

Learn different strategies for finding the percent one number is of another. The Strategy Packs provide alternate ways of solving the same problem, giving your students different approaches to the same problem.

The Bank of China building in Hong Kong is a dramatic example of triangular support. The notion of triangular trusses is introduced, along with the key concepts developed in the rest of the program.

Learn different strategies for finding the slope of a line. The Strategy Packs provide alternate ways of solving the same problem, giving your students different approaches to the same problem.

This video provides a step-by-step tutorial on using the slope formula. In this example the slope is positive. Note the download is a PDF that can used to demonstrate the step-by-step calculations.

This video provides a step-by-step tutorial on using the slope formula. In this example the slope is positive. Note the download is a PDF that can used to demonstrate the step-by-step calculations.