From YouTube, produced by Teacher To Teacher Press

An instructor shows why we flip the sign when multiplying or dividing by a negative when solving inequalities. He uses a flip chart and shows several examples including both inequalities and word problems.

This video involves solving linear inequalities. This video starts off with a black screen because the narrator uses it as a 'chalkboard' by using the Paint Program.

In this video, Sal Khan explores how to write inequalities using a word problem (that involves a phone texting plan). Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Te...ch Award in Education. (06:40) There is a lot of information on the screen--the viewer may want to open the video to 'full screen.'[more]

In this video, Sal Khan explores how to write inequalities using a word problem (that involves a touring band). Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Awa...rd in Education. (02:01) There is a lot of information on the screen--the viewer may want to open the video to 'full screen.'[more]

In this video, Sal Khan explores how to write inequalities using a single word problem. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. There a...re English captions at the bottom of the screen. (04:37)[more]

This lesson will teach you about the inequalities, the different type of inequalities, and how to draw the solution of an inequality in the number line.
Duration:22:37

This lesson consists of providing you with a Self-Tutorial on the basics of equalities and inequalities. I go over how to write results in interval notation, inequality notation, and set (set-builder) notation. I also explain in the printed notes how... to use your graphing calculator to help you make comparisons between numbers.[more]

Advanced Algebra Concept Exam #7 (concepts 9-13). This video discusses direct variation, linear modeling, graph and translate absolute value functions and inequalitites, graph linear and absolute value inequalities, and solving linear systems: subst...itutions and eliminations. (14:42)[more]

This video shows graphing linear inequalities, linear programming, solving systems in three variables, matrix addition and subtraction, and using matrices to represent translations. (10:37)

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