Phone: (469)752-9300 X-39366


Degrees and Certifications:

B.S. Electrical Engineering MBA in Management TEA Certification in Math 9-12, 6-8

Mrs. Donelle Wiechman

I am a 16 year resident of the area.  I am married with 3 children and much of my family lives in the area.  My oldest two children have completed their undergraduate degrees and my youngest child is a high school senior.  I have a sister and 3 brothers, all of whom graduated from PSHS.  I am the only one of my siblings who did not graduate from PSHS.  My undergraduate degree is in electrical engineering from Texas A&M.  I also have a masters degree in business administration.  I worked as a product/test engineer for about 15 years for Texas Instruments before becoming certified to teach secondary education in math and science.  I have been teaching at the secondary level since 2009 and have been at Plano Senior High School since 2016.  I enjoy working with high school school students and hope that my students develop an appreciation of math and the power that it gives them to solve problems.

  • Algebra 2 and Pre-Cal Calendars can be found in the Google Classroom

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  • Can be found on the Google Classroom page

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Teacher Schedule

  • I can be reached at or

    leave a voice mail at 469-752-9300 x-39366


    1st Period - Algebra 2

    2nd Period - Algebra 2

    3rd Period - Conferencing/Planning

    A - Lunch

    4th Period - Algebra 2

    5th Period - Algebra 2

    6th Period - Pre-Cal

    7th Period - Pre-Cal

Tutorial Schedule

  • Algebra 2/ Pre-Cal Tutorials

        We teach tutorials as a team so MANY other options can be found on the schedule in our google classroom 

          Wednesday 4:20 - 4:50p - Pre-Cal

          Thursday 8:15 - 8:45a - Algebra 2

          Also, send me an email to see what we can figure out.