• Hi.  During these troubled times, parents and students please note that you may email me at any time.


    Assignments (non-graded) and review/new material will be posted on Schoology.

    Students may get help and ask questions on Zoom (ID 972-183-9093), starting Monday, March 30, adhering to the following schedule:

    Pre-Calculus  Tuesday and Thursday 4 PM

    AP Calculus AB Monday and Wednesday 6 PM

    AP Calculus BC Monday and Wednesday 7 PM


    Thank you.  Stay healthy.



  • Mathematics
    FHS e-mail:  rchayo@fcusd.org
    personal e-mail: oyahc@aol.com