The password associated with your Google account is the same as your network password. To change your Google password, you MUST change your school network password on a non-Chromebook device and it will then be changed for Google too. You can then log back into your Chromebook using your new password. NEVER attempt to change your password directly within the Google interface.
If you have questions or concerns, contact the campus librarian. If further assistance is needed, contact the Ponder ISD technology helpdesk.