You can register to Skhole with a Sign up code you have received from your teacher or organization admin.
You can log in to Skhole either from www.skhole.fi or app.skhole.fi . After first login, you can change your password in you own profile. You can find you own profile on the upper right corner by clicking the Profile icon and choosing Profile.
Once you have a Skhole account you are also able to log in with Google or Facebook.