Try it yourself first. Make your own attempt before you ask.
Check the AI. It can be wrong. Compare it with your textbook, your notes, or your teacher.
Make it yours. Use the feedback to improve your own work. Don't copy it.
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Your Writing
Paste your science writing
What kind of writing is it?
What grade are you in?
Paste your writing here
Voice input isn't available in this browser. For this age, it works best if a teacher or parent types what the child says out loud.
0 characters
Who is taking the photo?
Teacher PIN
Student Name
What are you checking?
Assignment Type
Answer Key
Key name
Correct answers
One answer per line, with the question number. Add points like (2 pts) — the default is 1. For written answers, write a sample answer and what to look for. Write (check myself) for questions you will mark yourself, like drawn notes.
Or read the key from a photo
Test Format
Grade Level
Photos of the work (up to 4 pages)
📷 Photograph just the page, flat and in good light — no faces, and cover the student's name if you can. Photos are sent to the AI to read and are not saved by this app.
What grade are you in?
K-5 students learn coding with block-based tools like Scratch or CodeMonkey — try Science Writing for that age range instead.
Which programming language?
What do you need?
Paste your code or question here
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📊
Your Feedback
What's working and what to try next
🌟
Your feedback will show up here. You'll see what's working and one next step.
STEM Bridge AI gives students quick, personalized feedback on science writing and code, and helps teachers check handwritten work and paper tests. It is free and open source, and it runs in any web browser with nothing to install.
Science Writing (SciWrite AI): feedback on lab reports and explanations, for Kindergarten through college.
Coding Helper (CodeBridge AI): hints that lead students to fix their own code, from grade 6 up.
Photo Check: read handwritten work from a photo, or mark a paper test against an answer key.
3
Tools in one platform
48
States reporting teacher shortages
5
Writing skills scored
K–12
Full grade range
Using AI well
Try it yourself first. Make your own attempt before you ask.
Check the AI. It can be wrong. Compare it with your textbook, your notes, or your teacher.
Make it yours. Use the feedback to improve your own work. Don't copy it.
Why we built it: many students in rural and low-income schools have little access to expert STEM feedback, and 48 states reported teacher shortages in 2023–2024. This tool aims to give every student quick, personalized guidance.