Welcome to our school! We can't thank you enough for being here as a substitute. Whether you are here short or long term, you play an important role on our campus.  By being here to support the school and student learning, you help our schools run smoothly and keep classrooms productive when our educators are absent. 

Our substitutes, also called subs, are important to us and we want to make sure that you are well taken care of while on our campus. We hope the following information helps your day go smoothly. 

Support and resources 

Campus procedures

Please sign in at the front office and have your substitute badge visible at all times.
Other details coming soon.

Apply to be a substitute

Interested in being a substitute but you haven't signed up yet? All substitute jobs applications are submitted using GISD's Online Application System. See the district's Substitute Information page for more details.

Contact us 

screenshots of the Frontline mobile app

Frontline mobile app 

Download the Frontline mobile app from your app store or Google Play store and check for job notifications and accepting assignments. Other features are coming soon! 

The 4-digit code is no longer needed. Just sign in with your Frontline account username and password. 

See the Substitute information page for Substitute Handbook and more.

For substitute assistance, contact:

Lisa Clark
Substitute Office Manager

Blanca Moctezuma
Substitute Office Secretary