LHS Mathematics
LHS Mathematics
Lexington High School
Mathematics Department
251 Waltham Street
Lexington, MA 02421
781-861-2320
Kevin Kelly, LHS Math Department Head
Butterfly Castaneda, Administrative Assistant, Ext 69534
The Lexington High School Mathematics Department offers a comprehensive four-year mathematics program whose goal is to enable all students to reach high standards and full potential in a supportive, academically focused environment. We seek to engage students in meaningful mathematics that stimulates curiosity and enjoyment, while providing a balance between skill development and conceptual understanding. Throughout our curriculum, we emphasize eight Mathematical Practices identified in the Common Core State Standards and the Massachusetts Curriculum Framework for Mathematics.
LHS Mathematics Information
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Find math teacher websites by clicking the links below:
Abreu, Anderson, Bodine, Bond, Brunner, Chung, Collins, Cordero, Daniels, Doucette, Gable, Goldberg, Gormisky, Grande, Harris, Kelly, Klein, Knecht, Kocer, LeBlanc, Newberg, Ng, Novack, Pendergast, Pfrommer, Richardson, Ringer, Scheltz, Sheppard-Brick, Skowronek, Tracy, Unger, Verner, Virgin, Wall, West.
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Calculators for math classes
Students taking Math 1, Math 3, Precalculus, Calculus, and Statistics classes will need a Texas Instruments TI-84 or TI-83 graphing calculator. Our school recommends purchasing such a calculator which can be used for various LHS math and science classes as well as for most standardized tests. Access for everyone is our priority, so we also make long-term loans of calculators to any student who needs one. A student can borrow a calculator by seeing Ms. Butterfly Castaneda in office 711, weekdays 8:00-11:30 a.m. during the school year. Students must return the calculator when they no longer need it, or before leaving or graduating LHS, or else there's a charge for the calculator's value.
For students in Math 2, either a scientific calculator or a graphing calculator will be suitable. Scientific calculators can be purchased for less than $10. If a Math 2 student is unable to obtain a scientific calculator they can also see Ms. Butterfly as described above.
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Placement Review Forms are linked from the 2025-26 Lexington High School Program of Studies which will be posted on the Lexington High School website in early February. The deadline for submitting these forms is March 17, 2025.
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Our department has a longstanding practice of releasing final exams for most courses on a two-year cycle. We hope that our released exams will be useful to students preparing for final exams. You can find our released final exams in this folder. Note however that we did not give any final exams in 2020 or 2021.
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On the 2024 Grade 10 Math MCAS, LHS had 55% of its students exceeding expectations, 91% meeting or exceeding expectations, and 1% needing to retake the test to be able to graduate. (For comparison, statewide, these numbers are 12%, 48%, 13%.) More details are available from Massachusetts DESE.