TED Talk Critical Thinking Unit 2 - Truth | 2-Week Curriculum

Teach two focused weeks of high-school critical thinking with Unit 2 - Truth.

This no-prep Grades 9-12 unit uses 8 short TED/TED-Ed videos as anchors for complete 50-minute lessons. Students practice belief, persuasion, formal systems, representation, AI behavior, creativity, consciousness, and standards of evidence while matching claims to evidence, preserving uncertainty, identifying assumptions, and revising conclusions when the evidence changes.

Try a real lesson free: Does Time Exist? - FREE sample lesson

FREE planning preview: Download the Full Curriculum Educator Planning Guide

Want all four units plus Week 9? See the Complete Full Curriculum

Videos Included - Unit 2 Truth

Every title links directly to the public YouTube video.

1. Ethical dilemma: Who should you believe? - Alex Worsnip
2. How can you change someone's mind? (hint: facts aren't always enough) - Hugo Mercier
3. Does math have a major flaw? - Jacqueline Doan and Alex Kazachek
4. Plato’s Allegory of the Cave - Alex Gendler
5. The Turing test: Can a computer pass for a human? - Alex Gendler
6. What Aristotle and Joshua Bell can teach us about persuasion - Conor Neill
7. Can robots be creative? - Gil Weinberg
8. Scientists still don't know the answer to this infamous question - Charles Wallace & Dan Kwartler

Classroom Use at a Glance

• Length: 2 instructional weeks / about 10 class days
• Video lessons: 8
• Assessments: W03, W04, and U02
• Lesson design: complete 50-minute lesson structure around each short video
• Best uses: whole-class instruction, sub plans, flipped learning, review, enrichment, make-up work, or independent study

What's Included

• 8 complete TED video lesson sets
• W03, W04, and U02 assessment Teacher Guides and generated student/quiz derivatives
• Teacher Guides with learning targets, vocabulary, two-viewing structure, discussion prompts, answer keys, and standards alignment
• Digital and print Student Worksheets
• Self-Graded Quizzes
• Multiple Choice Quiz Print versions
• Start Here PDF with shared-folder access instructions

Guidance & Summary

• Each short video becomes a full lesson rather than a passive viewing worksheet.
• Students distinguish source claims, evidence, assumptions, uncertainty, interpretation, and value judgments.
• Questions use changed-cue reasoning and transfer rather than simple recall whenever appropriate.
• Sensitive topics are handled with third-person cases and no required personal disclosure.

Differentiation Options

• Preview only essential vocabulary.
• Replay difficult sections and use timestamps to return to evidence.
• Use partner discussion before written response.
• Assign selected assessment-bank items rather than every item when time is limited.
• For advanced students, add counterarguments, alternative explanations, or explicit scope limits.

New Optional Video Companion (used with YouTube)

The free Classroom Video Guide Companion Chrome extension can automatically pause YouTube at question timestamps and display prompts during viewing. It can make whole-class, small-group, and independent video lessons easier to facilitate. The curriculum works normally without the extension.

Frequently Asked Questions

Are the videos included?
No. The exact public YouTube videos are linked above.

Does this unit include the Full Curriculum Week 9 capstone and cumulative Final?
No. Those full-course-only resources are included in the Complete Full Curriculum.

Can I use this with Google Classroom?
Yes. The controller-generated workflow includes digital student materials and self-graded quiz support.

Independent resource notice: TED/TED-Ed videos are not included. This is an independent educator-created companion curriculum and is not affiliated with or endorsed by TED.