The process to reset your password depends on how you initially signed up for Schoolhouse—whether it was with your Google account or with a username and password.
The image below shows the difference between signing into your Schoolhouse account with your google account and without it. The red circle indicates that you log in with your Google account and the black circle indicates that you log in the traditional way with a username and password.
If you signed up using your Google account:
You won't be able to reset your password through Schoolhouse, since you never created a username and password for Schoolhouse. Instead, you'll need to change your password directly in your Google account settings.
If you need to set a password for your account rather than signing in with Google, you can do so by clicking on "Sign Up" instead of "Sign In" or password reset. As long as it's the same email address, it should still connect with your Schoolhouse account.
If you signed up using a username and password:
Sign out of your account
Look for the "Don't remember your password?" option on the sign-in page
Follow the prompts to reset your password
Having trouble receiving the password reset email? Refer to this article.