• LHS Mathematics Department

    Dept. Head: Kevin Kelly, kkelly@lexingtonma.org, 781-861-2320 x69726
    Dept. Secretary: Heather Foley, hfoley@lexingtonma.org, 781-861-2320 x69725
    Office: LHS Math Building, room 711
    Twitter: @lexhsmath


    New site: As LPS and LHS move to new web sites soon, the Math Department is moving too. Our new web address is sites.google.com/lexingtonma.org/lhsmath
    Online textbooks and solution manuals: Now available for this year's students in Math 1, Math 2, and Math 3. Follow the link in the left-hand menu for more details. 
    Graphing calculators:  Our school strongly recommends that all students purchase a Texas Instruments graphing calculator from the TI-83 or TI-84 family. Most students get a calculator at the start of 8th or 9th grade and use it for class work, homework, and assessments in math and science through all four years of high school. Our school also lends calculators to students who need and request them. See this page for more information.
    Course catalog:  For information about our math course offerings, see the Mathematics section of the LHS Program of Studies 2019-2020.
    Past final exams: We have many final exams available from past years of courses. Choose "Final Exam Archive" from the left side menu to access them.