# Middle

## Estimating Costs, Estimating Profits

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In this video segment from TV411, Franklin works with Laverne to create a budget and understand his pay for a job painting a room. Franklin is not sure if he should take on a job where he will be paid \$250 for painting a friend’s family room. He must take into consideration the cost of supplies as well as how long the job will take him. He consults with Laverne and realizes he has to make some estimates to come up with the budget for the job.

## Predicting Travel Time Using Line Graphs

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In this Cyberchase video segment, Harry wants to visit his grandmother. He decides that the cheapest way for him to get there is to travel by unicycle, but he wonders if he can get there before dark. Using a line graph, he tries to predict the amount of time it will take to travel the twenty miles, assuming he travels at a constant speed. Once he sets out on his unicycle, he charts his progress on a new line graph. After the first hour he appears to be ahead of schedule, but he is not able to keep up the pace and soon finds himself falling behind.

## Raising the Bar | Cyberchase

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In this video segment from Cyberchase, Harry and Bianca have new jobs at a movie theater concession stand. They compete with each other to see who can sell the most snacks, and they report their sales using bar graphs. When their graphs are compared, it appears that Harry has sold more, but Bianca is not so sure, so she takes a closer look at the scale of each graph.

## Planning a Paper Route

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Harry agrees to take over his brother Pete's paper route for a week. After starting the job, he realizes the route was not planned out very well. He tries to rework it by analyzing the list of addresses. After making some adjustments to his list, he is able to create a new, easier and more efficient route.

## Staircases of Shangri-La | Cyberchase

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In this video segment from Cyberchase,Hacker and the CyberSquad use two different staircases as they race to reach the Good Vibration. How will reach the top of the mountain first?

## Balancing Equations with Multiple Terms | Cyberchase

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In this video segment from Cyberchase, Inez and Digit are attempting to gain access to a machine in order to save Sensible Flats from disaster. First, they must balance a scale to get the correct numeric access code. In order to do that they have to balance a scale using four weights on each side. They soon learn that adding or removing the same weight from each side does not upset the balance of the scale.

## Calculating Rectangular Area | Cyberchase

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In this video segment from Cyberchase, the CyberSquad must measure two differently-shaped parcels of land to determine which has a larger area. The CyberSquad uses tarps, fence posts, and finally a grid made out of rope to count squares and determine the area of each parcel.

## When Does 50/50 Become 50/50? | Cyberchase

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In this video segment from Cyberchase, Bianca wants to see a movie but she can’t decide which of the two movies she should see. To help her decide, she flips a coin. The coin comes up “heads” three times in a row. This surprises Bianca, so she does some research to find out the probability of landing on heads or tails when flipping a coin.

## Statistics: Steppin' Out

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Using this resource group, teachers can focus on the topic of statistics by having students construct box and whisker plots to analyze and compare data sets. This resource group is part of the Mathline Middle School Math Project.

## Taste Test Video

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This DragonflyTV segment demonstrates the relationship between taste and smell, and the ability of taste buds to recognize taste when the nose is blocked.