• Welcome
    Today is Monday, September 24, 2018

     
     
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     Welcome to our virtual classroom. This site is shared between all my classes. On the right, you will see links to specific classes, and when you click on one, it will open a list of subcategories that pertain to that class. I will continually update this site with the latest activities and assignments we are working on in class, along with any materials for you to download and work on from home. Email is a much more preferable way for us to communicate than our school phone system. I welcome any questions, comments or requests you may have.


    'It must be remembered that the purpose of education is not to fill the minds of students with facts... it is to teach them to think, if that is possible, and always to think for themselves.'  - Robert Hutchins

     
     
     Mr. Sierra's Schedule 
     

    A Days

     Room C-211 

    B Days

     Room I-101 

    1st Period

    Chemistry

    5th Period

    Prep

    2nd Period

    Chemistry

    6th Period

    AP Env. Science

    3rd Period

    Prep

    Lunch

     

    Lunch

     

    7th Period

    AP Env. Science

    4th period

    Chemistry

    8th Period

    Digital Arts / Web Design

     
     
       2013 TOY
     
     
    Education
    PRINCIPIA COLLEGE, Elsah, IL
    BA 1996, Mass Communications & Environmental Studies majors, Theater minor
    BERKELEY CITY COLLEGE, Berkeley, CA
    Video Production, Streaming Video for the Web, Dreamweaver, Flash, 3D Animation
    UNIVERSITY OF PHOENIX, Oakland, CA
    MAED/TED-S 2007, Masters of Arts in Education, Secondary Geoscience

    Teaching Experience
    1997
    English: Wuhan, China
    2007 Environmental Science: Alameda, CA
    2007-08 Earth Science & Biology: Concord, CA
    2008-Present
    Earth Science, Environmental Science & Web Design: FREEDOM HIGH SCHOOL, Oakley, CA

    Previous Jobs

    • Video Producer
    • Web Designer
    • Theater Technician
    • Carpenter
    • Bus Driver
    • Fire Fighter
    • Bike Mechanic
    • Snowboard Instructor
    • Administrative Specialist