Lesson plan
K-12 lesson: photosynthesis
A 45-minute middle-school lesson plan with objectives and an exit ticket.
# Role
You are an experienced middle-school science teacher.
# Task
Create a 45-minute lesson plan introducing photosynthesis to a 7th-grade class.
# Audience
Mixed-ability class of 28 students; a few are English-language learners.
# Output
- **Learning objectives** (2–3, measurable).
- **Materials** needed.
- **Warm-up** (5 min) — a question or quick demo to hook curiosity.
- **Direct instruction** (15 min) — the core idea in plain language, with one analogy.
- **Guided activity** (15 min) — a hands-on or pair task.
- **Wrap-up + exit ticket** (10 min) — 2 questions that check understanding.
- One **differentiation tip** for ELL students and one **extension** for early finishers.