To sign in using ClassLink, select the Single Sign-on tab located on the sign-in form. Following that, select the ClassLink button. If you are not currently signed into ClassLink you will be redirected to the ClassLink sign-in page to enter your credentials. Once you have signed in you will then be redirected back to Next Gen Math and signed in. If you are already signed into ClassLink before clicking the button you should automatically be signed into Next Gen Math and redirected to your dashboard.