The online lesson planner for modern classrooms.
A clean, modern online lesson planner where you can build detailed lessons fast, organize them across classes and terms, and reuse them year after year — with an AI assistant that helps you draft content as you go.

The lesson planner teachers asked us to build
Our Notion for Teachers templates have helped 50,000+ educators stay organized for years. EMStudio's online lesson planner is what those teachers kept asking us for — one place to build detailed lessons, schedule them across your classes, and reuse them year after year.
What makes a good lesson planner
A good online lesson planner should feel like an upgrade the moment you open it. Building a lesson should take minutes, not a tutorial. Finding last Tuesday's plan should take one click. And the work you do this year should be the foundation for next year, not something you start from scratch every September.
The easy way to plan lessons
Planning a lesson should be the work, not figuring out the planner. EMStudio's interface is built to fade into the background — clean layouts, predictable controls, and an editor that opens instantly. Most teachers have their first lesson built within minutes of signing up, and find the rest of the app just as quick.
Lesson editor with everything built in
EMStudio's editor handles everything a lesson actually needs: formatted text, images, video, attached files, and math equations, all in the same document. Your lesson plan and your teaching materials become one thing instead of five things in five places.
Last edited 2 minutes ago
Photosynthesis overview
Photosynthesis is the process by which plants convert light into the chemical energy stored in glucose.
- Light absorption by chlorophyll
- Electron transport chain
- Calvin cycle (light-independent)
| Stage | Location |
|---|---|
| Light-dependent | Thylakoid membrane |
| Light-independent | Stroma |
Without photosynthesis, life on Earth as we know it would not exist.
Track lessons across every class
When you teach more than one class, the hardest part of planning isn’t writing the lessons. It’s remembering where every class is in the term. EMStudio’s classroom management organizes lessons by class so each one stays on its own track without you having to keep them straight in your head.
4 units · 17 lessons
The Cell
5 lessons
DNA & Genetics
4 lessons
Evolution
4 lessons
Cells & Energy
4 lessons
Get started in under 5 minutes.
Sign up and walk through the onboarding tutorial. By the end you've got your classes set up and you're ready to plan your first lesson — no credit card required.
Get Started for FreeReuse lessons across classes and terms
A lesson you spent two hours building shouldn’t only get used once. EMStudio keeps every lesson in your library and lets you apply it to other classes, copy it into next semester, or pull it out of last year’s plans when the same unit comes around again.
Templates
5Materials
- 200 ml Elodea (pondweed)
- Sodium bicarbonate solution
- 250 ml beaker, light source, ruler
Safety
Wear goggles when handling chemicals. Keep electrical cords away from water.
Procedure
- Set up the lamp 15 cm from the beaker.
- Record bubble count per minute for 5 minutes.
- Repeat at 30 cm and 45 cm distances.
Give your school what it needs
Teaching isn’t just teaching. It’s also standards reporting, observation files, sub plans, and the printout your principal wants by Friday. EMStudio handles those obligations from the same lessons you’re already building, so the admin side of your job stops being separate work.
Standards
CCSS HS-RST · 10 standards · 7 covered
NGSS HS-LS · 8 standards · 4 covered
Construct an explanation based on evidence for how DNA in genes codes for protein structure.
Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.
Construct and revise an explanation showing carbon-based molecules form by combining smaller carbon-based molecules.
Use a model to illustrate that cellular respiration is a chemical process whereby sugars and oxygen are released.
Custom · 9 standards · 8 covered
AI assistant built into the editor
The AI lesson plan generator lives inside the editor itself, turning lesson planning into a back-and-forth instead of a solo task. Ask for an idea, draft, or rewrite at any point, and the output drops straight into the lesson you’re working on.
AI Assistant
Draft a 50-min lesson on photosynthesis for Grade 9 Biology.
Identify inputs and outputs · diagram the two stages
Wilting plant photo · what does it need to recover?
Mini-lecture + pondweed lab measuring O₂ bubbles
Exit ticket · write the chemical equation in your own words
FAQ
Start planning lessons today
Build your first lesson in under five minutes. EMStudio is free to start with a 30-day Pro trial, no credit card required.
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