This is a student made ice cream drama set in the early part of the 20th century. A relationship is established in the drama about the ice cream and the weather to teach the concept of direct proportion. As the temperature increases the man buys ...more ice cream. An example of this direct proportion is shown after the drama.[more]

This is a lesson excerpt. To see the whole video go to mindbites.com/lesson/918. This video explains direct proportionality. Professor Burger uses a real-world example of a spring and Hooke's Law using a slinky. Hooke's law states that the distance... a spring stretches varies directly to the force applied. If force, f, is directly proportional to distance, d, then d~f or d=kf. This equation allows us to find the constant, k, of how much the spring stretches when force is applied. After we have found this number, we can determine the distance the spring will stretch with varying forces applied.[more]

This is a video presentation in direct proportion. The objective of the video is to find the missing term expressed as x in a proportion. An example is used with the number of dogs. (03:34)

In this video you can find constant proportionality and use it to form an equation to solve problems. Key words relating to direct proportion are discussed. Some examples of problems are looked at and solved in the video. Practice question and ans...wers are presented at the end of the video.[more]

This video is geared for eighth-grade Algebra students. This video illustrates how to solve direct proportions. Examples and rules are presented on a white board. For additional exercises and worksheets follow the link provided at the end of the vi...deo.[more]

This video is a lesson on direct variation or direct proportion. The instructor reads a sample word problem that involves direct variation and shows the steps necessary to solve the problem. She explains the formula for direct variation, then plugs... in the numbers from the problem to find the constant of variation. Then, she completes the problem by plugging the value for the constant of variation into her original formula and uses that equation to solve for the desired values.[more]

In this video 3 examples are solved on proportions. a review is made of of what a proportion is before the problems are solved on a white board. A proportion are two ratios that are equal to each other.

This video explains what direct variation is and provides definitions of terms associated with direct variation. The instructor provides examples of the constant of variation and how to find it.

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