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Free beginner lessons

Short, shareable introductions to STEM topics. Open any lesson to learn — no account required to view. Or meet the teachers.

• Welcome — Lesson 1: Foundations of College Algebra | Shared lesson | Teachee

  College Algebra · Sep 11, 2026 · Priya Sharma

• Welcome and Lesson Goals | Shared lesson | Teachee

  College Algebra · Sep 11, 2026 · Priya Sharma

• Welcome and Lesson Goals | Shared lesson | Teachee

  College Algebra · Sep 11, 2026 · Priya Sharma

• Welcome and Lesson Goals | Shared lesson | Teachee

  College Algebra · Sep 11, 2026 · Priya Sharma

• What is DNA | Shared lesson | Teachee

  DNA Structure · Sep 11, 2026 · Mira Chen

• Welcome — What is Classical Conditioning | Shared lesson | Teachee

  Classical Conditioning · Sep 10, 2026 · Sam Patel

• What is the Water Cycle | Shared lesson | Teachee

  Water Cycle · Sep 9, 2026 · Sam Patel

• What is photosynthesis | Shared lesson | Teachee

  Photosynthesis · Sep 8, 2026 · Mira Chen

• The Surprise of One Long Change | Shared lesson | Teachee

  World History: The Industrial Revolution · Aug 29, 2026 · James Okonkwo

• Markets as human stories | Shared lesson | Teachee

  Intro to Economics: Supply and Demand · Aug 28, 2026 · James Okonkwo

• Welcome and Lesson Goals | Shared lesson | Teachee

  College Algebra: Quadratic Equations · Aug 27, 2026 · Priya Sharma

• Lesson 1 — Photosynthesis: Big Picture | Shared lesson | Teachee

  AP Biology: Photosynthesis · Aug 26, 2026 · Mira Chen

• Introduction to Classical Conditioning | Shared lesson | Teachee

  Introduction to Psychology: Classical Conditioning · Aug 25, 2026 · Sam Patel

• What is Organic Chemistry | Shared lesson | Teachee

  Organic Chemistry · Aug 24, 2026 · Mira Chen

• Lesson 1 — Introduction to Statistics | Shared lesson | Teachee

  Introduction to Statistics · Aug 23, 2026 · Priya Sharma

• Welcome — Lesson 1: What is Environmental Science | Shared lesson | Teachee

  Environmental Science · Aug 22, 2026 · Mira Chen

• Lesson 1: What is World History | Shared lesson | Teachee

  World History · Aug 20, 2026 · James Okonkwo

• Lesson 1: Calculus I — Overview and Goals | Shared lesson | Teachee

  Calculus I · Aug 18, 2026 · Priya Sharma

• Lesson 1 — Foundations of Anatomy & Physiology | Shared lesson | Teachee

  Anatomy and Physiology · Aug 17, 2026 · Mira Chen

• Introduction to Psychology — Lesson 1 | Shared lesson | Teachee

  Introduction to Psychology · Aug 16, 2026 · Sam Patel

• What is a honeybee | Shared lesson | Teachee

  honeybees · Aug 15, 2026 · Sam Patel

• Lesson 1 — Aurora Borealis: What and Why | Shared lesson | Teachee

  aurora borealis · Aug 13, 2026 · Sam Patel