8-19: Learning Goals

• Let's ask important questions to compare groups.

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8-19-1: Features of Graphic Representations

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8-19-2: Comparing Populations

1. Silently read your card and think about what information you need to answer the question.
2. Ask your partner for the specific information that you need.
3. Explain to your partner how you are using the information to solve the problem.
4. Solve the problem and explain your reasoning to your partner.

1. Silently read the information on your card.
2. Ask your partner “What specific information do you need?” and wait for your partner to ask for information. Only give information that is on your card. (Do not figure out anything for your partner!)
3. Before telling your partner the information, ask “Why do you need that information?”
4. After your partner solves the problem, ask them to explain their reasoning and listen to their explanation.

Problem Card

Data Card

Pause here so your teacher can review your work. Ask your teacher for a new set of cards and repeat the activity, trading roles with your partner.

8-19-3: Comparing to Known Characteristics

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8-19: Lesson Synthesis

• What information is important to collect when attempting to compare large groups?
• Why each of these pieces of information is useful?
• In what other situations might it be helpful to compare two large groups by generating a sample and collecting information?

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8-19: Learning Targets

• I can decide what information I need to know to be able to compare two populations based on a sample from each.

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8-19-4: A Different Box Plot

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