The instructor uses pencil and paper to demonstrate how to divide integers. Four examples are modeled with emphasis on the rule for the solution being positive or negative. Good sound quality. (00:36)

From YouTube, produced by Lawrence Perez/Candice Jhu

The video starts with a review of multiplication and how this math operation is repeated addition. Then, the instructors review division, they go on negative times a positive. Using this, they show how a negative divided by a negative is a positive. ...Working backwards you have a negative times a positive is negative. Other examples are given. So, a negative divided by a positive equals a negative, a positive divided by a negative equals a negative, and a negative divided by a negative equals a positive. Video is good quality and good for all students as review or initial learning of the concept. (There are English captions at that bottom of the screen.) (06:26)[more]

The instructor show how to divide negative integers with specific examples using computer software. The sound of the instructor's voice is a little low, but understandable. However, the voice may not be heard in a large classroom. (01:18)

The instructor uses a white board to demonstrate how to simplify numerical expressions with negative numbers and division. (Simple production with stationary camera and white board.) (01:51)

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