teacher.dev Building apps for teachers that solve real problems

Free classroom tools

App Gallery

We've built 21 free, accessible apps with teachers. Explore them, try them out, and share your feedback.

Geometric Solids screenshot2 reels

Geometric Solids

An interactive 3D surface-area and volume visualizer for exploring solids, nets, dimensions, and units.

Shy Safari
1 reel

Shy Safari

A calm classroom safari where shy animals come out the longer your class stays quiet, and get scared away when it gets too loud.

Growing Reader screenshot1 reel

Growing Reader

A simple reading fluency tracker for recording words per minute and watching student growth over time.

Math Figures screenshot2 reels

Math Figures

A simple way to make grids, number lines, and more for your tests.

Chemistry Figures screenshot2 reels

Chemistry Figures

Free generators for clean, printable chemistry figures for tests, worksheets, and slides.

Test Parrot screenshot3 reels

Test Parrot

Build reusable question banks, assemble exams by topic and difficulty, and export student tests and answer keys.

Built by Valerie Nickel, Kara Auger & Elliot Roe

Group Readers screenshot1 reel

Group Readers

Easily match students into book club groups based on the books they want to read.

Built by Duncan Johnson & Carrie Chandler

Picture Practice screenshot2 reels

Picture Practice

Picture-based multiple-choice practice designed for nonverbal students and AAC users.

IEP Behavior Tracker
1 reel

IEP Behavior Tracker

An IEP behavior tracker for recording student observations in kindergarten classrooms.

Label Your Lunch screenshot1 reel

Label Your Lunch

A tool where students build meals from recipes or individual ingredients and get auto-calculated macros displayed as a standard nutrition label.

Built by Duncan Johnson & Lexi

Clock Literacy screenshot1 reel

Clock Literacy

Analog clock-reading practice where students choose a level and match clock faces to written times.

Rounding with Number Lines screenshot1 reel

Rounding with Number Lines

Guided rounding practice that helps students use number lines to find endpoints, midpoints, and nearest values.

Everyday Sound Lab
1 reel

Everyday Sound Lab

A tool to help deaf and hard of hearing students learn to identify environmental sounds.

Participation Grade Book
2 reels

Participation Grade Book

A themed participation tracker built on Google Sheets that you can set up with a couple of clicks.

Math Facts Drill
1 reel

Math Facts Drill

A free math facts drill website to help students learn and practice their math facts.

Vocab Sleuth
1 reel

Vocab Sleuth

A Wordle-style game for grade 1-8 classrooms using words your students are likely to know.

Built by Duncan Johnson

Fact Friends screenshot1 reel

Fact Friends

Friendly math-fact practice that lets teachers manage classes while students join securely with a class code.

Built by Amanda Denbroeder & Greta Goss

Live Thermometer
1 reel

Live Thermometer

A glass thermometer that displays the current temperature of any city so your students can learn the number line.

Built by Duncan Johnson

Clef Coach screenshot1 reel

Clef Coach

A customizable notes-and-fingering practice builder for string teachers, with shareable student links and challenge settings.

Built by Chris Smithell & Elliot Roe

Evidence Room screenshot1 reel

Evidence Room

A classroom-friendly crime scene simulation where students collect and package evidence, then discover how well it survives transport to the lab.

Built by Duncan Johnson & Hanna Suggs

Physics Figures screenshot1 reel

Physics Figures

Free generators for clean, printable physics figures for tests, worksheets, and slides.