Google Classroom

For schools and districts on Google Workspace for Education, accessibility is best delivered at the browser level rather than as a Classroom add-on. Classroom add-ons can only render UI in the right-side add-on panel — they cannot reach the assignment content students actually read in Docs, Slides, or Forms. The Chrome extension reaches every page in every tab, with no per-assignment configuration.

Deployment options

Pick the option that matches how your IT team manages Chromebooks and student browsers:

Option 1 — Force-install for the whole domain (recommended)

Pushes the Angstroma extension to every signed-in student and teacher across your Workspace. Best for K–12 districts with managed Chromebooks.

1. Sign in to admin.google.com as a Workspace super-admin
2. Go to Devices → Chrome → Apps & extensions → Users & browsers
3. Select the organizational unit you want to target (top-level for the whole domain, or a sub-OU for specific schools / grade levels)
4. Click the + (Add) button → Add Chrome app or extension by ID
5. Paste the Angstroma extension ID (provided in the Angstroma Portal under Settings → Integrations → Google Classroom)
6. Set installation policy to Force install and pinning to Force pinned
7. Click Save — propagation across managed devices takes 15–60 minutes

Option 2 — Allow-list for opt-in install

Lets students and teachers install the extension themselves from the Chrome Web Store, but blocks every other extension. Best for high schools and colleges with mixed device fleets.

1. In Admin Console → Devices → Chrome → Apps & extensions → Users & browsers
2. Set Allow / block mode → Block all extensions, allow some
3. Add the Angstroma extension by ID with installation policy Allow install
4. Students install it themselves from the Chrome Web Store

Option 3 — Tell students to install it themselves

For schools without managed device policies, share the extension link directly. The free Angstroma extension works on any Chromebook, Mac, or PC running Chrome or Edge:

https://chromewebstore.google.com/detail/angstroma-accessibility/jigofailgfloolejeokbjggkadigclil

What the extension does on Classroom

• Adds a floating accessibility toolbar on classroom.google.com
• Stays active on every linked Doc, Slide, Form, Drive file, and external link a student opens
• Provides 20+ accessibility features: Reading Mask, Bionic Reading, Dyslexia Font, High Contrast, Dark Mode, Text-to-Speech, Large Cursor, Focus Highlight, AI Hints, AI Vocabulary, and more
• Persists each student's preferences across sessions and devices via the Angstroma API
• Works offline once loaded — no network dependency for the toolbar UI itself

Why not a Workspace Marketplace add-on?

Google Classroom add-ons render only inside the right-side add-on panel of classroom.google.com. They cannot inject scripts into the main course view, and they cannot reach the Docs, Slides, or Forms assignments where students actually do the work. This is why no major accessibility-overlay vendor — accessiBe, UserWay, EqualWeb, AudioEye, Recite Me — has shipped a Classroom add-on. The Chrome extension is the path that reaches every student-facing surface.

Privacy

The Angstroma extension stores feature preferences in browser local storage. When a student signs in to Angstroma to sync preferences across devices, only a hashed identifier and the preference data are sent to Angstroma's servers — no name, email, or course information. See angstroma.com/privacy for the full policy.