Phone: (469) 752-9300 ext. 29587


Degrees and Certifications:

B.S. Interdisciplinary Studies - Texas Woman's University 7-12 Mathematics & ESL

Mrs. Allison Tollefson

Welcome to PSHS! My name is Allison Tollefson, and I teach ESL Geometry, Math Models, and Algebra 2. I started teaching here in Spring 2021. I am a Plano Senior High graduate, and I feel honored to be back here as a member of the faculty. I found my dream job doing my two favorite things: teaching math and helping students develop multilingual communication and literacy skills. 

  • 1st: Algebra 2 ESL  
    2nd: Learning Lab    
    3rd: Geometry ESL    
    4th: Math Models ESL
    5th: Math Models ESL  
    6th: Conference Period  
    7th: Math Models ESL
  • Tutorials:

    Tuesdays B-Block Lunch (1:09 - 1:40)

    Wednesday Mornings (8:15 - 8:45)