Here are the steps to install a Progressive Web App (PWA) on a computer:

1. Open the Google Chrome web browser on your computer and go to the link provided by school.
2. Look for the three dots in the upper right corner of the screen and click on them. 3. Look for the "Install [School Name]" option and click on it. 4. Wait for the PWA to download and install, and then click on the "Add app" button. 5. Once installed, the PWA will appear on your Chrome apps page (chrome://apps) and can be launched like any other app.

App is Installed Use like Regular Software.

Note: These steps are specific to Google Chrome on a laptop, but similar steps should be available on other web browsers.