Lesson 13 of 34 in this sequence

38%

Not completed yet

Saved on this device only — not synced to an account yet.

Learning path

Step 13 of 34

Continue the sequence

ResumeReturn to this step ReviewRevisit the core idea RemediateGet repair practice Next stepChoose the next lesson manually

Completion

Review objectives and instruction
Complete the activity with manual learner confirmation
Answer every understanding-check item
Show completion feedback and reward only after the learner finishes the check

Progress

Step 13/34
15 content types
AI help source context available
Auto-advance blocked

Review objectives and instruction

AI help

Available only with source grounding, privacy limits, age controls, and measurement.

AI source context

Telling Apart a Fact and an Opinion · Thinking It Through · fact vs opinion · fact-opinion distinction

Evidence: local lesson AI-help metadata only; source-grounding, privacy, age-safety, and measurement hooks do not prove real model quality, production telemetry, child AI approval, or AI tutor production readiness

Production AI readiness not claimed

AI source context

Assessment shape

Local lesson assessment shape is complete.

Local shape only; production answer-attempt telemetry, live ownership/RLS evidence, mastery interpretation, release, and production readiness are not claimed here.

Objectives: 5
Activity: Prompt ready
Quiz items: 3 items, 3 answer keys, 3 explanations
Reward: Completion reward ready

Assessment progress stays manual: do not auto-advance through uncertain answers, failed writes, consent, media, payment, learner choice, or AI-assisted checks.

Learning-loop evidence: Content-map contract only; persistence and production learner-progress writes require route/API evidence.

Manual policy: assessment, media, consent, payment, learner choice, failed writes, and AI-uncertain help stay under learner control.

Prerequisite: Complete or review Same for Everyone vs. What Each Person Needs; Use with parent or guardian controls for child learners

AI guardrails

Privacy

Do not send raw child free text without consent
Use source excerpts and non-identifying progress state only
Asset is not registry-gated

Age safety

Apply kids audience controls before AI-help claims
Keep child learner AI paths behind guardian/product review evidence before readiness claims

Measurement

Log AI help usage by surface and asset slug
Evaluate answer quality against source-grounded rubric before production-readiness claims
Tie remediation prompts to completion, retry, or review outcomes

Local AI-help guardrails only; they do not prove guardian approval, production telemetry, model evaluation, release, deployment, or AI tutor production readiness.

Source and rights

Source path: koydo-app/scripts/curriculum-authoring
License: ai-generated-koydo
Attribution: Attribution decision needs owner review
AI provenance: claude-opus-4-8

Source review gates: attribution_missing

Local source evidence only; this does not prove publication rights, attribution approval, AI provenance clearance, release, deployment, or production readiness.

Route review

Current route: /library/kids/philosophy_ethics/en/lesson/opinion-vs-fact
Route source: Fallback route needs owner canonical review
Candidate route: /library/kids/philosophy_ethics/en/lesson/opinion-vs-fact

Local route evidence only; fallback candidates need owner-approved canonical route policy before route writes, production discoverability, or readiness claims.

Content gates: canonical_target_web_missing_uses_library_fallback

lessonslessonslesson objectivesmedia scenesdrillspractice setsquizzesfeedbackcharacterscitationsconcept mapsprogressresumereviewremediationnext steps

Telling Apart a Fact and an Opinion

with Philo

Philo stands at a colorful marketplace bulletin board covered with handwritten signs and posters, holding a red marker in one hand and a green marker in the other, carefully sorting statements into two columns labeled FACT and OPINION

Explain the difference between a fact and an opinion in your own words
Identify whether a statement is a fact or an opinion using clue words and checkability
Compare two statements on the same topic and label each as fact or opinion
Explain why opinions are not wrong even when people disagree
Identify how a single argument can mix both facts and opinions together

Key terms

Fact: A statement you can check and prove.
Opinion: What someone prefers, values, or believes.
Clue word: A word like best that signals an opinion.
Checkable: Able to be measured, counted, or tested.

Facts You Can Check

A fact is something you can check to see if it is true. You can look it up, count it, measure it, or test it. "A week has seven days" is a fact because anyone can count and agree. Facts do not change based on how you feel about them. When people use good evidence, they all reach the same answer about a fact.

Opinions And Clue Words

An opinion shows what someone likes, values, or believes. "Summer is the best season" is an opinion, because someone else might love winter, and both are okay. Clue words like best, worst, should, beautiful, and I think often point to an opinion. Opinions are not wrong even when people disagree. They just depend on each person's own taste, not on something everyone can check.

Worked examples

Sort a sentence into fact or opinion.

Read the sentence: "Pizza is better than sandwiches."
Ask if it can be checked and proven, or if it depends on what someone likes.

Answer: It is an opinion, because better depends on personal taste. Someone else might love sandwiches more, and no test can prove who is right.

Hey there, thinker! I am Philo, and I love sorting out what we *know* from what we *feel*. A **fact** is a statement you can check. You can look it up, measure it, count it, or test it, and everyone using good evidence will agree. For example: "Apples are a fruit that grows on trees." That one is checkable — true! An **opinion** expresses what someone prefers, values, or believes. It is not right or wrong the same way a math answer is. Clue words like *best*, *worst*, *should*, *beautiful*, *terrible*, or *I think* often signal an opinion. For example: "Apples are the best snack." Someone else might pick grapes — and that is perfectly okay! Here is the tricky part: arguments almost always **mix both**. Someone might say, "Apples have vitamin C *(fact)*, so everyone should eat one every day *(opinion)*." Spotting which part is which helps you think more clearly about what you are being told. Your test: *Can this be checked and proven?* If yes — it leans toward a fact. If it depends on what someone values or prefers — it is an opinion.

Activity

Sort each statement into the FACT bucket or the OPINION bucket by dragging it to the right side

Practice

Write one fact and one opinion about your favorite animal.

Find a clue word that tells you a sentence is opinion.

Common mistakes to avoid

A sentence with a number is a fact.A number can sit next to an opinion, like calling something the greatest ever.

Check your understanding

Which of the following is a FACT?

Maya says, "Our school library has 2,000 books, so it must be the greatest library ever." Which part of Maya's statement is an OPINION?

Your friend says, "I think chocolate ice cream is better than vanilla — that is just a fact." What would you tell your friend?

Recap

A fact can be checked and proven, so people using evidence agree on it. An opinion shows what someone prefers and is not wrong when people disagree. Clue words help, and many sentences mix both together.

Reflect

Why is it helpful to tell a fact apart from an opinion?