Nora Mantell, MEd

Director, founder & owner

Lexington Tutoring, LLC builds self-confidence and fosters academic success by patient, expert, individualized homework coaching, remedial tutoring and enrichment in almost all academic subjects, including support for students whose academic difficulties are associated with learning disabilities. Here's what students and parents are saying about our work.

Nora, the owner, creator and director of Lexington Tutoring, LLC, is a veteran Massachusetts teacher with over 3 decades of high school and college teaching experience. Under Nora's guidance, Lexington Tutoring, LLC has served students at almost all of the public and private K-12 schools and colleges in MetroWest, MetroNorth and the Greater Boston area.

Nora can be reached directly at 781-652-9649 or at

Jonathan Langford, BS

Biology, chemistry & physics; honors & standard levels of earth science, algebra 1 & 2, geometry, trigonometry, precalculus, calculus & statistics; psychology; math, science, history & Spanish homework coaching, 9-12 & college

Executive function coaching

PSAT, ACT & SAT prep; SAT II Subject Tests: Physics, Chemistry, Biology & Math I & II

AP tutoring & exam prep: Physics, Statistics, Chemistry & Biology

MTEL prep: Biology

Jon Langford has dual Bachelor of Science degrees in Neuroscience and Biology from the University of Massachusetts Amherst, where he was Dean’s list and a member of the National Honor Society of Neuroscience. Previously a research scientist in the drug discovery department of Hydra Biosciences, Jon is on an eventual path to his doctoral degree in medicinal chemistry and drug discovery. Jon is also an avid outdoorsman, botanist, and musician.

Jon offers tutoring in the biological sciences, chemistry, neuroscience, psychology, math, and physics and provides math, science, history and Spanish homework coaching, SAT and ACT prep, SAT II Physics, Chemistry and Biology prep and MTEL Biology prep.

Victoria Zeuner, MS

Biology, chemistry, physics, earth science, meteorology, algebra 1 & 2, geometry, trigonometry, precalculus, calculus & multivariable calculus; writing coaching, including lab/technical writing; K through grad school homework coaching; college & graduate school selection, application & essay support

Executive function coaching

SAT, ACT & SAT II Subject Test prep: Math I, Math II, Chemistry, Physics & Biology

AP tutoring & exam prep: Biology, Chemistry, Statistics,  Psychology,  Physics 1, Physics 2, Physics C: Electricity & Magnetism, Calculus AB, Calculus BC

International Baccalaureate exam prep: English Literature (A/B), Biology, Physics, Mathematics, Chemistry, ITGS (Information Technology in a Global Society), World History, Japanese for Beginners, TOK (Theory of Knowledge Essays), Extended Essay

Victoria Zeuner has her BS and her MS in Chemical Engineering from Northeastern. As an undergraduate she was a recruited scholarship athlete for Div 1 Women’s rowing. She was the 2015 recipient of the Huntington 100, Outstanding Co-op Award. Among her many other accomplishments at Northeastern are her inclusion on the International Co-op, Deans List (Spring 2014), The American Institute of Chemical Engineers (AIChE) Freshman Recognition Award for Northeastern University 2010-2011, the Colonial Athletic Association Commissioner’s Academic Award--Women’s Rowing (2011, 2012) and the Kappa Delta Outstanding New Member Award 2012. Victoria has been much lauded for her work as a teaching assistant for the undergraduate chemical engineering courses Thermodynamics and Process Safety.

In her professional life, Victoria works at Sanofi Genzyme (a biotech specializing in rare diseases) in their operational excellence department. At Sanofi, she drives continuous process improvement from a chemical engineering perspective. Previously, Victoria worked for Sanofi’s Engineering Documentation Group and for their Global Quality Department where she wrote operational standards for ~114 manufacturing sites around the world. Victoria also worked at a genetic engineering lab at the University of Heidelberg to help develop the game-changing Crisper/Cas-9 technology for DNA editing.

Victoria has a passion for math and science and a unique ability to translate complex science and engineering processes into succinct knowledge that can be shared with people who are unfamiliar with such technical fields. Victoria is a native speaker of English; she is fluent in French (business conversational) and German (basic). She delights in helping her students select and apply to college and grad school. Her students and her colleagues have given her consistently high marks for her passion, her patience, her intelligence, the breadth of her experience and her vast array of accomplishments.

Morgan King, MAT

Biology, chemistry, environmental science, marine science, anatomy, physiology & introductory physics; algebra 1 & 2, geometry, precalculus, calculus, English, writing coaching & homework coaching across the middle school & high school curriculum

Executive function coaching

ISEE, SSAT, HiSet & MCAS prep

PSAT, ACT & SAT prep

SAT II Biology Subject Test

AP tutoring & exam prep: Biology

MTEL prep: Biology (13), Mathematics/Science (Middle School) (51), Communication & Literacy Skills (01): Reading Subtest; Writing Subtest, Foundations of Reading (90), General Curriculum (03): Multi-Subject Subtest Multiple-Choice Question Analyses; Mathematics Subtest & Sheltered English Immersion (56)

Morgan King has her BA in biology, cum laude, and her MAT from Clark University. She holds Massachusetts certification for Biology 5-12 and Sheltered English Immersion (SEI) Endorsement. Morgan came to us with on one year of experience teaching math and science at Sparks Academy in Lawrence, two years of experience teaching biology, chemistry, marine science and AP environmental science at Nantucket High School and an intership at Claremont Academy in Worcester where she taught anatomy and physiology and biology. This year she will be beginning a new position at McDevitt Middle School in Waltham, where she will be teaching science. She has been praised by her colleagues and administrators as a talented, patient, personable and passionate educator who expertly identifies students’ strengths and areas for growth, and crafts approaches that help her students to feel successful.

At Clark, Morgan was a varsity athlete and the recipient of the Robert Noyce Scholarship for talented STEM educators, the Clark University Student-Athlete Award and the Clark University Leadership Scholarship. She has traveled extensively throughout Italy, Ireland, Australia, Bali, Puerto Rico and both coasts of the United States. She is certified in Lifeguarding and Red Cross First Aid, CPR and AED (automated external defibrillation).

Nevin Katz, MEd

Biology, chemistry, physics, earth science, meteorology, world history, U.S. history, ancient history, English, algebra 1 & 2, geometry, trigonometry, precalculus & calculus; writing coaching, web design & front-end web development (HTML, CSS, Adobe Tools--Illustrator, Flash, Dreamweaver, InDesign & Photoshop); homework coaching K-12 & college

Executive function coaching

ISEE, SSAT, HiSet & MCAS prep

PSAT, SAT, ACT & SAT II Subject Test prep: Math I, Math II, Chemistry & Biology

AP tutoring & exam prep: Biology & Chemistry

MTEL prep: Mathematics (47), Mathematics (09), History (06), Biology (13), Earth Science (14), Chemistry (12) & General Curriculum (03): Multi-Subject Subtest Multiple-Choice Question Analyses; Mathematics Subtest

Nevin Katz graduated from Swarthmore College, where he majored in biology and did additional work in chemistry. After earning his EdM. in Teaching and Curriculum at the Harvard Graduate School of Education, he taught at the secondary level for eight years. Nevin Katz is an ace homework coach and science/math/humanities tutor. When he’s not working with our students, he is a Technical Project Director at EDC in Waltham, where he either manages or leads the coding effort on a number of projects involving web and app development.

Nevin, is an experienced writing coach and SAT/ACT/SAT II prep coach. He is the author and illustrator of the Dr. Birdley Teaches Science series, a nationally published set of teacher resource books for secondary school classrooms.

Some of the many thank-you emails we have received from Nevin's students and their parents are posted on this page of our website.

Michael Bertini, MS, ABD

Algebra, geometry, trig, pre-calc, calculus, statistics, chemistry, physics, college &  graduate school selection & application essay support; finance, accounting & MBA courses; English, government &  politics, macroeconomics, microeconomics & history; honors &  standard levels of biology & earth science; homework coachingwriting coaching

Executive function coaching

GMAT & GRE prep

PSAT, SAT, ACT & SAT II Subject Tests: Math I, Math II, Physics, US History & Chemistry

AP tutoring & exam prep: Chemistry, Physics 1 & 2, Physics C: Electricity and Magnetism, Calculus AB, Calculus BC, Macroeconomics, Microeconomics, US History & Statistics

Michael Bertini is currently pursuing a PhD in International Economics and Finance at Brandeis University. He holds a BS in Mechanical Engineering from Worcester Polytechnic Institute, a MS in Management from Rensselaer, and a MS in International Economics and Finance from Brandeis University.

After graduating from WPI, Michael worked as an engineer for Otis Elevator. While working full-time time, he earned his masters part-time. With the encouragement of his professors, Mike decided to pursue a PhD in Economics at Brandeis. He has served as a Brandeis International Business School Leadership Fellow for two years, welcoming new graduate students to Brandeis. Last year he won Outstanding Teaching Assistant award for his work with incoming masters students. He has taught undergraduate economics courses at both Brandeis and Boston College. While at Boston College, he built and taught a novel elective course called, “The Economics of Social Security and Healthcare,” which received much praise from his students. Michael is always looking for opportunities to combine theory with practical applications to make material come alive.

When he is not tutoring or in the classroom, Michael enjoys spending time farming, playing squash, jogging, and reading the classics.

Ajay Ghadiyaram, MS

Pre-algebra, algebra 1 & 2, matrix algebra, geometry, trig, pre-calc, calculus, multivariate calculus, physics & US history; standard levels of biology & chemistry; homework coaching across the high school & some college curriculums

Executive function coaching

SAT, ACT & SAT II Subject Tests: Math I, Math II & Physics

AP tutoring & exam prep: Physics 1, 2 & C, Computer Science A, Calculus AB, Calculus BC & US Government

Ajay Gadiyaram has his BS and MS in Electrical and Computer Engineering from Carnegie Mellon University. His students appreciate his easy going personality,  impressively diverse skill set and contagious enthusiasm.  By day, Ajay is a cyber security engineer with a firm in Bedford.

Ajay is a graduate of Thomas Jefferson High School for Science and Technology, Fairfax County, Va, widely known as the most selective high school in the USA, recently called, by Newsweek, "the number one high school in America,” renowned for its talented faculty and high SAT and ACT scores and ranked by US News and World Report as the 4th best selective high school for the gifted and talented in the USA. At Jefferson, Ajay was inducted into the National Honor Society based upon cumulative GPA, leadership, and community service. He scored above 700 on all three sections of the SAT and in the Math II, Physics, and US History SAT II tests. He received a score of 5 on both the AP Calculus BC (AB subscore - 5) and AP Government exams.

In addition to tutoring, Ajay also enjoys working with DSO Global, a non-profit startup that works with international development clients on various causes such as sustainability, education, health, and human empowerment. 

Amy Berninger, MPh

Algebra, geometry, trig, precalculus, statistics & probability; psychology; English & American literature & composition; American & world history; earth science, biology, health & epidemiology; art history; anatomy; anthropology

Homework coaching in all of the above plus chemistry & physics

Executive function coaching

College selection & application essay support

ISEE, SSAT, HiSet & MCAS prep

PSAT, SAT & ACT prep

SAT II Subject Tests: Biology

AP tutoring & exam prep: Statistics, Biology, U.S. History, Art History & English

Amy Berninger has her BS in Human Biology from the State University of New York at Albany and her Master of Public Health in Epidemiology from Boston University. When she is not homework coaching and tutoring science and math with Lexington Tutoring, LLC, Amy is a senior policy analyst at Abt Associates in Cambridge, where she works in program design, implementation, and evaluation. She has contributed to several large-scale, domestic health projects at the Federal, state, and local levels, where her work has focused on substance use disorder prevention, treatment, and recovery.

Amy’s patient nature, enthusiasm for helping her students to succeed, experience in quantitative and qualitative research methods, top-notch writing, organizational, planning, and communication skills, competence in assessing priorities, her excellent interpersonal skills, and strong project management skills all contribute to her effectiveness as a tutor and homework coach.

Brandon Robinson, MEng

Algebra, geometry, trig, pre-calc, calculus, statistics, chemistry, college selection & application essay support, economics, negotiation, accounting, financial literacy & investment, writing (creative, technical, essay, research papers), English literature, American literature,  composition, modern European history, American history & homework coaching in a vast array of courses including all of the above plus earth science, biology, physics, cinematography & philosophy

Executive function coaching

PSAT, SAT & ACT prep

SAT II Subject Tests: Math I, Math II, Physics, United States History & World History

AP tutoring & exam prep: Physics 1 & 2, Physics C, Calculus AB, World History, European History & United States History

MTEL prep: Physics, Mathematics, Mathematics (Elementary), Mathematics (Middle School) & Technology/Engineering

Concierge tutoring

When he's not working with us as a math and history tutor, an absolutely stellar homework coach with a talent for adding substantially to his students' organizational skills and a top-notch writing coach, Brandon Robinson is the principal partner and asset manager at a MetroWest investment firm.

Before settling in finance, Brandon worked on large-scale national defense projects as a systems engineer at Raytheon and General Dynamics. He has a BS in Mechanical Engineering and a Masters in Systems Engineering from Cornell University. At Cornell he founded and ran the CU Snake Arm Team, a for-credit student robotics project to advance highly articulated robotic arms for use in nuclear, aerospace, and medical industries. Brandon has authored and presented papers at the International Council on Systems Engineering (INCOSE - Toulouse, France 2004) and various American Society of Mechanical Engineers (ASME) conferences. His other enthusiasms include football, vocal performance and flying.

Greg Andrus, MS

Pre-algebra, algebra, geometry, trigonometry, precalculus, calculus, linear algebra, probability & statistics; fourier series & partial differential equations, differential equations, multivariable calculus, physics (w/ & w/o calculus), electricity & magnetism, circuit theory, power electronics, chemistry; standard levels of biology & earth science; economic decision making; basic Chinese, Spanish & homework coaching across the high school & some college curriculums; music theory & introduction to computer science

Executive function coaching

PSAT, SAT & ACT prep

SAT II Subject Tests: Math I, Math II & Physics

AP tutoring & exam prep: Statistics, Calculus AB, Calculus BC, Physics 1 & Physics C: Electricity and Magnetism

GRE prep

Greg Andrus has his BS in Electrical Engineering and a minor in mathematics (Summa Cum Laude) and his MS in Engineering Management from Northeastern. When he's not homework coaching and tutoring math and science with Lexington Tutoring, LLC, Greg is a printed circuit board design engineer at Bose where he works in the Product Development team of the Automotive Systems Division.

Among Greg's many talents are his impressively diverse skill set, his passion for math and physics and his effectiveness as an executive function coach. Greg's career path was predominantly inspired by his strong interest in music as a child. He is an avid musician with 22 years of classically-trained piano experience and 8 years of guitar experience. He has written and recorded some of his own compositions. He took AP music theory in high school and has provided piano lessons to students in the past.

During his high school years, Greg earned a 3.6 GPA, acquired the rank of Eagle Scout, scored 740 on his Math I SAT II test, 750 on his Math II SAT II tests, 5 on his AP Calculus BC test and 5 on his AP Statistics test. He received the Tau Beta Pi Forge Scholarship No. 2 in 2012.

Greg has been much praised by his co-workers and former professors for his superb organizational skills, the breadth and depth of his knowledge base, his energetic, positive attitude, his genuine desire to help others and his varied enthusiasms and talents.

Megan Joiner, BS

Algebra 1 & 2; geometry; trigonometry; precalculus; calculus; linear algebra; matrix theory; probability; statistics; physics (w/ & w/o calculus); writing coaching; homework coaching K-12 & college, including Spanish I & II

Executive function coaching


SAT II Subject Tests: Math I, Math II &  Physics

AP tutoring & exam prep: Statistics, Calculus AB, Calculus BC & Physics 1, 2 & C

When she's not homework coaching, math tutoring or providing SAT, ACT, and SAT II prep to our students, Megan Joiner is an engineer at iRobot where she specializes in optimizing their line of household care robots.  

Megan has her BS in Electromechanical Engineering from Wentworth Institute of Technology. She graduated valedictorian of her class, Dean's List, recipient of the Arioch Scholarship (awarded to students who have demonstrated both academic achievement and active involvement in their school and community), the Presidential Award and Wentworth’s Beatty Award for academic excellence. 

Megan's passion for math, science and engineering, her commitment to academic excellence and her superb planning, communication and organizational skills all contribute to her effectiveness as a tutor and homework coach.

Brad Lewis, MEd

Chemistry, physics, algebra 1 & 2, geometry, trigonometry, precalculus, calculus, trigonometry & US history

SAT II Subject Tests: Math I & II, Physics, Chemistry & US History

AP tutoring & exam prep: Chemistry, US History & Physics

MTEL prep: Mathematics (47), Mathematics (09), Mathematics (53), Chemistry (12), Biology (13) & General Science (10)

Brad Lewis graduated from Boston University magna cum laude with a BA in neuroscience and a GPA of 3.75. He then completed his MEd at UMASS Boston. When he's not working with our students, Brad is teaching chemistry at West Roxbury HIgh, coaching wrestling at Boston Latin and competing in endurance races and triathlons.

Prior to becoming a teacher and tutor, Brad held an EMT license, and worked on both ambulance crews and medical response teams for special events. He earned his EMT license at age 16 through a special program at his high school, and held positions for different emergency medical services throughout high school and college.

Brad's passion for tutoring began in college when he worked as an academic tutor for varsity athletes through the BU athletic department. As a varsity athlete himself on the wrestling team, he won the award for the highest GPA on the team every semester. After finishing undergrad, he worked as a student teacher for a full academic year as part of an accelerated master's program. Today, Brad utilizes his skills to help students excel in science and math, and succeed academically.


Members of our learning disabilities team

Courtney Cooper, MEd

Learning disabilities support; K-10 homework coaching across the curriculum, K-college language arts, social studies/history, human studies & psychology tutoring; K-college writing coaching; tutors college courses leading to degrees in human development & literacy, language arts, history, human development & psychology

Executive function coaching

ISEE, SSAT, HiSet & MCAS prep

PSAT, ACT & SAT prep

AP tutoring & exam prep: World history

Praxis I prep; Praxis II prep: Reading: 5710, Writing: 5720 & Mathematics: 5730

Courtney holds an MEd from American International College, an MS in Literacy from the University of New England, and a BA in Human Development from Wheelock College. She is currently pursuing a PhD in Educational Psychology at American International College. She is trained in the Wilson Reading Program, Lindamood Bell Learning Processes, Sharma Math, Lucy Calkins' Writing Workshop, Singapore math and Everyday Math

Previous to joining our team, Courtney had several years of teaching experience in Maine and Massachusetts independent primary, elementary and middle schools and K-12 private tutoring. Her passion for identifying students’ learning styles and assisting in student growth and understanding are at the forefront of her focus and drive her instruction. When she is not working with our students, she enjoys reading, writing, and spending time with her husband and young daughters.

Joshua Sanford, MEd

Learning disabilities support; Pre-algebra, algebra I, world history, ancient history, U.S. History, English & language arts, writing coaching & homework coaching K-12 & college

Executive function coaching

ISEE, SSAT, HiSet & MCAS prep

PSAT, ACT & SAT prep

MTEL prep: Communication & Literacy Skills (01): Reading Subtest; Writing Subtest, General Curriculum (03): Multi-Subject Subtest Multiple-Choice Question Analyses; Mathematics Subtest, Foundations of Reading (90), Mathematics (Elementary School) (53), Middle School Humanities (English/History), English (07) & History (06)

Praxis I prep; Praxis II prep: Maine, New Hampshire, Connecticut, Vermont & Rhode Island--English & Social Studies

Josh Sanford, MEd is a seasoned, certified special education teacher with a long list of present and former students who have soared under his guidance. He has his BA from Bates College in Classical and Medieval Studies with a secondary concentration in Educational Studies, his Masters in Education from Lesley University, Special Education – Moderate 5-12 and History 8-12 licensure, 15 years of experience in working in Special Education, solid credentials for tutoring social studies, science, math, language arts and 4 years of absolutely outstanding work with us. His demanding liberal arts undergraduate education has given him a strong base in United States history, pre-algebra, algebra, American literature, life skills and emotional/social coping skills.

Josh has considerable experience with a variety of disabilities, including ADD, ADHD, executive function disorders, dyslexia, dysgraphia and autism spectrum disorders including Asperger’s syndrome, mood disorders and other learning disabilities characterized by slow processing speed. Josh is adept at developing strong communication skills, fostering and promoting student strengths, and focusing on problem solving to internalize academic skills. He is trained in Cognitive Behavioral Theory and crisis intervention. His warm, friendly-but-firm manner, his use of humor and engaging questions to build rapport and his impressive academic background are very conducive to productive and effective homework coaching.

When he's not working with our students, Josh teaches at Mansfield High School. His previous experience includes 5 years teaching at The Gifford School in Weston, Massachusetts, 2 years teaching at Casa Pacifica, in Ventura, California and 1 year teaching at Crotched Mountain Rehabilitation Center, in New Hampshire.

Bryan Rotundo, MEd

Homework coaching K-8; American history & world history; algebra I & II, English & Spanish 1; writing coaching, learning disabilities support, support for students with social/emotional needs

Executive function coaching 3-8th grade

ISEE, SSAT, HiSet & MCAS prep

PSAT, ACT & SAT prep

MTEL prep: Communication & Literacy Skills (01): Reading Subtest; Writing Subtest; General Curriculum (03): Multi-Subject Subtest Multiple-Choice Question Analyses & Mathematics Subtest; Foundations of Reading (90); Mathematics (Elementary School) (53); Early Childhood (02)

Bryan Rotundo has his MEd in Special Education from Lesley University and his BA in Marketing from Siena College. When he's not working with our students, Bryan teaches at a Metrowest middle school where he runs an academic support and executive function intervention program. He is experienced at designing individualized instruction and at identifying the learning styles and strengths of his students, including those with dyslexia, ADD, ADHD, anxiety, executive functioning issues, and emotional disabilities.

Bryan combines a broad knowledge range with a kind, approachable personality and a genuine love for teaching. Along with academic tutoring, Bryan focuses on skills such as organization, time management, prioritization, test taking, and goal-setting. He also provides instruction on non-cognitive student skills such as resiliency, grit, adaptability, self-advocacy, and the development of a growth mindset.

Before pursuing his career in education, Bryan led African safaris, worked with teachers to plan educational trips throughout the U.S., and performed musically throughout New England as a acoustic rock guitarist and songwriter.

Elissa Sanford, MEd

K through 5 reading, writing, math & learning disabilities support for students with special needs including developmental delays, deafness, hearing loss, autism, ADD & ADHD; primary literacy--phonemic awareness, phonics, fluency, vocabulary & comprehension, writing & spelling; American Sign Language

MTEL prep: Early Childhood (02)

CSET: Multiple Subjects Test prep

Elissa holds an MEd from California State University Northridge, a BA in Communication Disorders from the University of Colorado, Boulder, a Post-Masters Certificate in Early Education and Care: Research, Policy and Practice from the University of Massachusetts, Boston and Massachusetts Educator’s certification as a Teacher of the Deaf-All Levels (Pre/K-12). She is trained in Applied Behavior Analysis, Handwriting Without Tears and American Sign Language.

When she is not providing early education services and learning disabilities support to our students, Elissa is an educational consultant with The Learning Center for the Deaf in Framingham. Elissa is also a Developmental Specialist for infants and toddlers with a variety of language and developmental needs at Criterion Middlesex Early Intervention, in Framingham. Elissa's previous experience includes 12 years teaching in early education and care, working primarily with deaf and hard-of-hearing students and students with special needs, including learning disabilities, developmental delays, autism, ADD and ADHD.

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