Welcome to Mr. Grebel's Classroom Website

    Classroom Matrix



    Contact information: robert_grebel@chino.k12.ca.us 

    *I am committed to responding to all student and parent emails within 24 hours on weekdays.

     *No more virtual office hours.  I am available for help at both lunches and 7:00 to 7:25 am daily

    *Aeries grades are updated regularly

    *Students submit all assignments on Google Classroom, unless otherwise indicated.  There is a very generous late policy.


    My Schedule


    1st period          Integrated Math 2

    2nd period         Integrated Math 3 Honors

    3rd period         Integrated Math 3 Honors 

    5th period         Integrated Math 2 Honors

    6th period         Integrated Math 2 Honors