IM 6.3.9 Lesson: Solving Rate Problems

How much is shaded?

How much is shaded?

How much is shaded?

Your teacher will give you a set of cards showing different offers. Find card A and work with your partner to decide whether the offer on card A is a good deal. What did you decide? Explain or show your reasoning.

Your teacher will give you a set of cards showing different offers. Next, split cards B–E so you and your partner each have two. Decide individually if your two cards are good deals. What did you decide? Explain your reasoning.

Your teacher will give you a set of cards showing different offers. Next, split cards B–E so you and your partner each have two. For each of your cards, explain to your partner if you think it is a good deal and why. Listen to your partner’s explanations for their cards. If you disagree, explain your thinking. Revise any decisions about your cards based on the feedback from your partner. When you and your partner are in agreement about cards B–E, place all the cards you think are a good deal in one stack and all the cards you think are a bad deal in another stack. List your which cards are in which stack below. Explain your reasoning.

Time to make your own deal! Read the information on card F and then decide what you would charge if you were the clerk. When your teacher signals, trade cards with another group and decide whether or not you would take the other group’s offer. Keep in mind that you may offer a fair deal or an unfair deal, but the goal is to set a price close enough to the value it should be that the other group cannot immediately tell if the deal you offer is a good one. Type the deal you created below.

Wild animals from around the world wanted to hold an athletic competition, but no one would let them on an airplane. They decided to just measure how far each animal could sprint in one minute and send the results to you to decide the winner. You look up the following information about converting units of length: 1 inch = 2.54 centimeters Which animal sprinted the farthest?

What are the place rankings for all of the animals?