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Are the Numbers Lying?

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Lesson Plan

Are the Numbers Lying? Lesson Plan

Students will be able to critically analyze a real-world scenario where data is used to make a claim, fostering discussion on how information can be presented to mislead or inform responsible decision-making.

In today's world, claims backed by 'data' are everywhere, from news to advertising. This lesson empowers students to become informed citizens and critical thinkers, able to discern truth from manipulation in the information they encounter daily, even when no complex charts are involved.

Audience

11th Grade

Time

45 minutes

Approach

Through direct instruction, collaborative scenario analysis, and class discussion, students will explore data narratives.

Materials

Whiteboard or Projector, Data Narrative Slides, Scenario Analysis Activity, and Markers/Pens

Prep

Review Materials and Prepare Technology

15 minutes

Step 1

Warm-up: Where do you see statistics?

5 minutes

  • Do Now: Begin by asking students: "Where in your daily life do you see claims backed by statistics or data? Think about news headlines, social media posts, or advertisements."
  • Encourage a brief class discussion, noting student responses on the board.

Step 2

Direct Instruction: How data narratives can mislead

15 minutes

  • Present the Data Narrative Slides to the class.
  • Focus on examples of how data narratives (the stories told with data, even without visuals) can be constructed to support different conclusions, discussing concepts like selective data, omitted context, and biased interpretation.
  • Facilitate a discussion with questions like: "What makes a data-backed claim seem trustworthy or untrustworthy?" and "How can omitting a small piece of information drastically change the story data tells?"

Step 3

Collaborative Work: Unpacking data scenarios

15 minutes

  • Divide students into small groups (3-4 students)or do together as a group.
  • Distribute the Scenario Analysis Activity instructions.
  • Instruct each group to carefully read the provided scenario and work together to answer the discussion questions.
  • Emphasize critically analyzing the superintendent's claim and identifying missing information or alternative interpretations, without needing to do any calculations.
  • Circulate among groups to provide support and answer questions, encouraging deep discussion.

Step 4

Wrap-up: Group scenario insights

7 minutes

  • Have each group or students briefly share their key insights and answers to the discussion questions from the Scenario Analysis Activity with the class.
  • Facilitate a brief discussion inviting other students to ask questions or share their observations on how the data narrative could be misleading or more informative.

Step 5

Exit Ticket: Data presentation and conclusions

3 minutes

  • Exit Ticket: Ask students to individually respond to the prompt: "How can a seemingly simple statement using data lead to a wrong conclusion if important context is missing? Provide at least one specific example from today's lesson or your own experience."
  • Collect exit tickets as students leave to assess their understanding of the lesson objective.
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Slide Deck

Are The Numbers Lying?

Thinking Critically About Data Narratives

  • Data is everywhere: News, social media, ads, even everyday conversations!
  • Data tells a story: But who is telling it, and what do they want you to believe?
  • Become a data detective: Learn to spot when numbers might be used to mislead or hide the full truth.

Welcome students and introduce the captivating question for today's lesson: 'Are the Numbers Lying?' Briefly explain that data is everywhere, and how it's presented (even in words) can change what we think. Ask students to quickly share where they see data-backed claims in their daily lives.

The Power of the Narrative

The Same Facts, Different Stories

  • The way data is described—the words, the emphasis, the context—dramatically influences our understanding.
  • A carefully constructed "data narrative" can make you believe almost anything.
  • Being aware of this power is the first step to identifying misleading claims.

Transition to the main point: how the way data is presented in a narrative impacts perception. Explain that the same underlying facts can tell different stories based on how they're framed. Emphasize that understanding this is key to being a smart consumer of information.

When Data Narratives Get Tricky

How Data Narratives Can Mislead

  • Data can be described to support different (sometimes opposing) conclusions, even with the same underlying information.
  • What makes a claim misleading? Often, it's about what's left out or overemphasized.
  • We'll learn to spot common rhetorical tricks in reporting and claims that use data.

Introduce the idea of 'data bias' or 'misleading data' in written or verbal claims. Give a simple example or two verbally, like presenting only one side of a story or emphasizing a small, positive change while ignoring larger negative ones. Ask students if they've seen this before.

Correlation vs. Causation

A Common Data Trap

  • Just because two things happen together (they correlate) doesn't mean one causes the other (it's causation)!
  • Correlation: Two variables tend to change at the same time. (e.g., Ice cream sales and drowning incidents both increase in summer.)
  • Causation: One variable directly causes a change in another. (e.g., Turning on a light switch causes the light to turn on.)
  • Be wary of claims that imply causation when only correlation is present.

Explain correlation and causation. Use a simple, humorous example like 'ice cream sales and shark attacks both increase in summer' to show correlation, but not causation. Emphasize that 'correlation is not causation,' even when discussing data in a written context.

Selective Data & Omitted Context

The Art of Hiding Information

  • Selective Reporting: Only highlighting the data that supports a specific argument, while ignoring data that might contradict it.
    • Example: A company claims "90% of customers are satisfied" based on a survey sent only to their most loyal customers.
  • Omitted Context: Leaving out crucial background information or comparisons that would provide a more complete picture.
    • Example: A news report states "Crime rates are up by 20%!" without mentioning that the previous year had unusually low crime rates, or that the increase is only in one small neighborhood.
  • These tactics can dramatically change perceptions and conclusions, even without complex charts.

Discuss how selective reporting of data points, or focusing only on a particular 'average,' can distort interpretations in a narrative. Use an example where a single, extreme success story is highlighted to represent an entire program, even if most participants didn't have that success.

Different Stories, Same Situation!

Analyzing Data Narratives

  • We're going to practice looking at how data can be used to tell different stories.
  • Ask yourself: How do different descriptions of data make you feel or what do they make you conclude?
  • Identify: What choices did the speaker/writer make in their narrative to convey their message? What did they include or exclude?

Now, guide students to consider hypothetical or real-world (if appropriate and non-controversial) examples of how the same situation could be described using data to create two very different impressions. Focus on the words used, the data chosen to highlight, and the context provided (or omitted).

Your Turn: Scenario Detectives

Group Activity Time!

In your small groups, you will:

  1. Review a real-world scenario where data is used to make a claim.
  2. Analyze the claim carefully: What is being said, and how is the data presented?
  3. Discuss how the data narrative could potentially be misleading, incomplete, or how it could be presented to be more informative and trustworthy.

Introduce the group activity. Explain that students will work with a data scenario to analyze how claims are made and whether they are misleading. Reinforce that they'll be 'scenario detectives' with a purpose.

Be a Data Detective!

Your Mission: Critical Thinking!

Always question the data narratives you see and hear:

  • Who is making the claim, and what might be their agenda?
  • What specific message are they trying to convey?
  • Is anything missing? What context or additional data would give you a fuller picture?
  • Empower yourself with critical thinking skills to make informed decisions!

Conclude by reiterating the main takeaway: critical thinking is essential. Encourage students to always question the narratives they encounter and to be mindful of how they present information themselves.

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Activity

Scenario Analysis Activity: The School Board's Big Claim

Objective: Your group will critically examine a scenario where data is used to support a claim. You will discuss how the data presented might be interpreted in different ways, potentially leading to misleading conclusions or informing responsible decisions.

Materials:

  • This activity sheet
  • Your group's critical thinking skills!

Scenario:
The "Academically Advanced Tutoring Program" (AATP) was implemented in the Happyville School District last year. This program, costing $500,000, aims to boost student performance.

At the latest school board meeting, the Superintendent presented the following "data" to show the program's success:

"Since implementing AATP, the average standardized test scores of participating students have increased by a significant 15%! This clearly demonstrates the program's effectiveness and justifies its cost. We recommend expanding AATP to all schools next year."

Discussion Questions:

  1. What claim is the Superintendent making based on this data?
    • Think about: What is the main message they want to convey?



  2. What important questions does this "data" presentation not answer?
    • Think about: What information is missing that would help you form a more complete picture? Consider the students involved, the timing, and other factors.






  3. How could this presentation of the data be potentially misleading?
    • Think about: Are there alternative explanations for the 15% increase? What assumptions are being made?






  4. What additional data or context would you need to make a truly informed decision about the AATP program?
    • Think about: What specific questions would you ask the Superintendent or the school board? How would you want the data to be presented to be more trustworthy?











  5. Based on your discussion, how does the way data is presented impact decision-making, even without complex charts?



Prepare for Presentation: Be ready to share your group's answers and insights with the class.

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Script

Are the Numbers Lying? Teacher Script


1. Warm-up: Where do you see statistics? (5 minutes)

Teacher: "Good morning/afternoon everyone! Today, we're going to become data detectives, but with a new lens. To start, I want you to think for a moment: Where in your daily life do you see claims backed by statistics or data? Think about news headlines, social media posts, advertisements, or even conversations where someone uses a number to convince you of something. Don't be shy, just shout out your ideas!"

(Allow students to share responses. Write key ideas on the board, like 'product success rates,' 'political polls,' 'health claims,' 'social trends reported online,' etc.)

Teacher: "Excellent examples! As you can see, statistics and data are used everywhere to support all sorts of claims. But how those claims are told can change everything. That brings us to our big question for today: Are the numbers lying?"


2. Direct Instruction: How data narratives can mislead (15 minutes)

Teacher: "Let's dive deeper into how data can be presented, not just in graphs, but through the story we tell with it. I'm going to show you some examples using our Data Narrative Slides. Pay close attention, because what you hear or read might not always be the full story."

(Display Data Narrative Slides, moving through each slide and using the teacher notes as guidance.)

Teacher (Slide: The Power of the Narrative): "As this slide says, the same underlying facts can tell many stories. The way data is described influences our understanding. Our goal is to be aware of how claims can be misleading."

Teacher (Slide: When Data Narratives Get Tricky): "Data can be described to support very different, even opposing, conclusions. What makes a data-backed claim seem trustworthy or untrustworthy to you? And how can omitting a small piece of information drastically change the story data tells?"

(Facilitate a brief discussion, encouraging students to share their initial thoughts.)

Teacher (Slide: Correlation vs. Causation): "This is still a big one! Just because two things happen at the same time, or seem to be related in a reported statement, it doesn't mean one causes the other! For example, if a headline says, 'Students who eat breakfast every day have higher test scores,' does that mean eating breakfast causes higher scores? Or could there be other factors at play? Always remember: correlation is not causation."

Teacher (Slide: Selective Data & Context): "Sometimes, the trick isn't what data is shown, but what isn't shown. We'll look at how data can be presented through 'selective reporting' – only sharing data that supports a claim – or by 'omitting context' – leaving out crucial background information. These can really change what we think the data is telling us."

Teacher (Slide: Different Stories, Same Situation!): "Now, let's consider some scenarios. Think about: How do different descriptions of data make you feel? What choices did the speaker or writer make with things like the information they included, or the context they provided (or didn't provide), and how do those choices change the message?"

(Guide students through discussing hypothetical examples of how a situation involving data could be framed differently to lead to different conclusions.)


3. Collaborative Work: Unpacking data scenarios (15 minutes)

Teacher (Slide: Your Turn: Scenario Detectives): "Alright, now it's your turn to be the data scenario detectives! I'm going to divide you into small groups."

(Divide students into groups of 3-4.)

Teacher: "Each group will receive the Scenario Analysis Activity instructions. Your task is to carefully read the provided scenario, which describes a claim made using data. Then, work together to answer the discussion questions. You won't be doing any math problems; instead, you'll be critically analyzing the claim, identifying missing information, and discussing alternative interpretations."

Teacher: "Think carefully about your questions: What information is the superintendent not telling us? How could this claim be misleading? What else would you need to know to make a truly informed decision? I'll be circulating to help if you have any questions and to encourage your discussions."

(Circulate among groups, offering guidance, prompting critical thinking about the scenario and their discussion points, and ensuring they are engaging with the activity effectively.)


4. Wrap-up: Group scenario insights (7 minutes)

Teacher: "Time is almost up for your group discussions! Let's bring it back together. Each group will briefly share their key insights and answers to the discussion questions from the Scenario Analysis Activity with the class."

(Call on each group to present. After each presentation, facilitate a brief discussion, inviting other students to ask questions or share their observations on how the data narrative could be misleading or more informative.)

Teacher: "Great job, everyone! It's clear you're starting to see how much power the person presenting data has, even when just telling a story with it."


5. Exit Ticket: Data presentation and conclusions (3 minutes)

Teacher: "To wrap up today's lesson, I have one final question for you. On a piece of paper or digitally, please respond to this prompt: 'How can a seemingly simple statement using data lead to a wrong conclusion if important context is missing? Provide at least one specific example from today's lesson or your own experience.'"

(Allow students 2-3 minutes to write their responses.)

Teacher: "Please hand in your exit tickets as you leave. Thank you all for being such keen data detectives today!"


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