HS 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
Online textbooks and solution manuals: Students using the Math 1, Math 2, and Math 3 textbooks have access to online textbooks and solution manuals. 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 Course Catalog 2018-19.
MCAS results:  Congratulations to LHS Class of 2020 students and teachers for outstanding results on the May 2018 MCAS Grade 10 Math test: 91% Advanced, 7% Proficient, 1% Needs Improvement, 0% Failing. See details on the Mass. ESE site.
Past final exams: For students preparing for 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.
Math Department on Twitter:  We’re just getting started on twitter but you can follow our department feed @lexhsmath. Also our student teams are @lhsmathteam and @lexrobotics.