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Grade 7 · Technology, computer science and digital literacy · 30 minutes

Unit 1 · Logic and Information Quality · Lesson 2 of 2

Test the Evidence Behind an App Claim

Evaluate whether a fictional product claim is supported by relevant and sufficient evidence.

Mr. S Teaches · Original starter mini-lesson · MS7-TECH-02 · Elective / rotation; availability varies

Learning objective

Annotate a short argument, identify two evidence limitations and write a narrower claim the supplied evidence supports.

Before you begin

  • Identify a claim and distinguish evidence from a personal preference.

Gather your materials

  • Paper
  • Pencil
  • The original fictional claim and study note below

Language to know

Relevance
How directly information relates to the question being asked.
Sufficiency
Whether the amount and quality of evidence support a claim’s strength.
Sample
The people or observations included in a study.
Conflict of interest
A stake that may influence how someone presents information.

Understand the concept

Fictional advertisement: “FocusFox doubles learning for every student. Our app has a bright purple logo, and eight of ten volunteer users said they liked its reminders.” Fictional study note: “The developer asked ten volunteers whether they liked reminder messages after two days. No learning assessment or comparison group was used.” The logo is not evidence of learning. Liking reminders is relevant to satisfaction, but it does not measure how much was learned. Volunteers may not represent every student. A developer’s involvement does not automatically make information false, but it is context worth considering.

Teach it step by step

  1. Underline the ad’s main claim and label its two offered supports: logo and user responses.
  2. For each support, ask what it actually measures and whether it relates to learning gains.
  3. Compare the universal words “every” and “doubles” with the limited sample and the absence of a learning measure.
  4. Write a revised claim limited to the supplied evidence. Explain two limitations and name information that would be needed to evaluate a learning claim.

Make the thinking visible

Worked example or model response

“In this two-day developer survey, eight of ten volunteers said they liked the reminders.” This reports satisfaction in a small sample. It does not establish that learning doubled or that every student would benefit.

Guided practice

Together evaluate: “Because the developer funded the survey, all ten responses must be invented.” Explain why identifying a possible conflict is different from proving fraud.

Independent practice

Write a six-sentence review: identify the claim, assess both supports for relevance, discuss sample and measurement limitations, provide a defensible revision and propose one stronger comparison. Cite short phrases from the fictional texts.

Quick assessment

Would adding 1,000 more opinions about the logo establish a learning gain? Why or why not?

Answer key & assessment criteria

Answers and teaching guidance

  1. Guided: Funding may affect design or presentation, but it does not by itself prove responses were fabricated. Evidence of fabrication would be needed.
  2. Independent criteria: The review distinguishes satisfaction from learning, recognizes the logo’s irrelevance, identifies volunteer/sample and measurement limits, narrows the claim appropriately and proposes comparable learning measures rather than popularity counts.
  3. Quick check: No. A larger quantity of irrelevant opinions still does not measure learning. Relevance cannot be replaced by sample size alone.

Look for: Treat this as a fictional reading exercise, not an evaluation of a real service. Praise careful uncertainty rather than blanket distrust.

Make it work for your learner

More support

Use a claim/what was measured/what remains unknown chart. Read the ad and note separately before comparing.

Extension challenge

Design two questions that would expose whether an improvement came from the app or another difference between groups; explain why a fair comparison matters.

Selected contributions · Official sources

Standards connections

Subject-content alignment not yet verified

Supporting Common Core connection

RI.7.8

Common Core · Grade 7

Evaluate an argument’s reasoning and the relevance and sufficiency of its evidence.

Read the official standard ↗

The short fictional texts practice argument evaluation, not full grade-band text complexity or verified digital-literacy content alignment.

Source and mapping checked 2026-11-04. This mini-lesson contributes selected skills; it does not claim full attainment.