U1L3 Developing and Testing Solutions

Antonio is designing a kite. He conducts an experiment to find which type of material to use in his design. The kite with the thinner cotton cloth flies the highest. He concludes that the thinner cotton cloth should be included in his design. Which is true about his conclusion?

• It is supported by the data and therefore useful in the design process.

• It is partially supported by the data and should be revised based on new tests.

• It is not completely supported by the data and should be dismissed.

• It is partially supported by the data but still not useful in the design process.

Ms. Tanaka's students are transporting delicate equipment from a bus stop to a stream. They have come up with a list of criteria for transporting the equipment safely. How can they best evaluate which criteria are the most important.

• Ask friends which criteria they think is the most important.

• Select some criteria from the list randomly.

• Select criteria based on which one were thought of first.

• Use a rating scale to identify the importance of each criterion.

Stacey gathered a group of people to test the same four pest control products using the same methods. They achieve the same results. Why might the testers disagree about which of the four pest control solutions is best?

• They might weigh risks and benefits of each solution differently

• They might have had different outcomes with the products.

• They might use the products for different lengths of time.

• They might use the products in different ways.

What word begins and ends with an "E" but only has one letter?

Dennis is designing a bridge that needs to withstand the weight of large transport trucks moving across the bridge. Which is the best way for her to find out if her design will support the moving trucks?

• Do some research online about the success of similar bridges.

• Build a prototype and use a toy truck to carry heavy weights across.

• As other bridge builders whether or not they think it will hold the trucks.

• Survey truck drivers to see if they would drive their truck over that design.

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What is a ghost's favorite Halloween make-up?

Tim thinks the design of his go-cart is too heavy and needs to be lighter. He comes up with a number of solutions and evaluates the constraints and criteria. One of his main constraints that affected most of his solutions was cost. Which next step would be the best one for William to take in order to solve the problem?

• Choose a solution and make a model based on that choice.

• Make models for all the solutions and test them.

• Go back to the drawing board and start a new design.

• Try and raise money to build and test all the solutions.

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Why won't a witch where a flat cap?

• She is wicked.

• There is not point to it.

• She needs to broom.

• She's going to a baseball game.