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 Metro west, Metro north and the Greater Boston area.

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


Members of the Lexington Tutoring, LLC team

Nevin Katz, MEd

AP, honors & standard level 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)

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

AP tutoring & exam prep: Biology & Chemistry

MTEL prep: Mathematics (47), Mathematics (09), History (06), Biology, Earth Science & Chemistry

GRE prep

Nevin Katz is an online curriculum specialist at the Education Development Center in Newton and an ace homework coach and science/math/humanities tutor. He 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, our lead writing coach and one of our two lead SAT/ACT/SAT II prep coaches is the author and illustrator of the Dr. Birdley Teaches Science series, a nationally published set of teacher resource books for secondary school classrooms. In his current role at EDC, Nevin conducts online professional development for educators and develops content, graphics, and multimedia for online courses in science, math, history and language arts.

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.

Amy Berninger, MPh

Algebra, geometry, statistics, probability, health, college selection & application essay support, English & American lit & composition, American & world history, earth science, biology, chemistry & art history; homework coaching in all of the above plus trig, precalculus, physics, psychology  & anthropology

SAT, ACT & GRE 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 researcher in program implementation and policy evaluation at Abt Associates in Cambridge, where she provides statistical analysis and research support for several social and economic policy projects.

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

Brandon Robinson, MEng

Algebra, geometry, trig, pre-calc, calculus, statistics, college selection & application essay support, economics, negotiation, accounting, financial literacy & investment, writing (creative, technical, essay, research papers), English & American lit & composition, history & executive function coaching; homework coaching in a vast array of courses including earth science, biology, chemistry, physics, cinematography, philosophy, aeronautics & programming (Excel, Matlab, Maple)

SAT, ACT & GRE prep; SAT II Subject Tests: Math I, Math II, Physics, United States History & World History

AP tutoring & exam prep: Physics B, Physics C, World History, European History, United States History, Government & Politics: Comparative

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

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 metro west investment firm. See this page of our website for some of the thank you emails we've received from the parents of Brandon's students.

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.

Margaret Kearns, MS

AP, honors & standard level biology, ecology, evolution, earth science, algebra 1 & 2, geometry, trigonometry, pre-calculus & statistics; writing coaching; homework coaching for all of the above, plus chemistry

MCAS, SAT, ACT & GRE prep; SAT II Subject Tests: Biology

AP tutoring & exam prep: Biology

Margaret Kearns is an ecologist who leverages her own enthusiasm and skills in applied science, writing and organization to help students set and achieve their academic goals. She has over a decade of experience in water resource management and teaching and received a New England Environmental Merit award from the US Environmental Protection Agency for her work protecting rivers for the State of Massachusetts. She has taught Ecology and Environmental Biology at the University of Georgia and Westfield State University and holds a BA in Environmental Sciences with departmental honors from Northwestern University and a MS in Conservation Ecology and Sustainable Development from the University of Georgia.

When she is not homework coaching and tutoring science and math with Lexington Tutoring, LLC, Margaret works with Instar Ecology in Waltham, where she assesses natural resources and plans water supply projects. She also enjoys yoga and playing the oboe with the Waltham Philharmonic Orchestra.

Andrew Lumb, BS

Algebra, trigonometry, geometry, statistics, probability, pre-calculus & calculus; physics, chemistry, biology & earth science; homework coaching in all of the above plus computer skills

SAT II Subject Tests: Math I & Math II

SOA/CSA Course 1 actuarial exam prep

Andy Lumb has his BS in Mathematics, with a concentration in probability and statistics, from Trinity College. While at Trinity, Andy was inducted into the Connecticut chapter of Pi Mu Epsilon math honors society and received the Robert C. Stewart Prize. Throughout his undergraduate years, Andy worked as a tutor to his peers in the college math department.

When he’s not tutoring and homework coaching with Lexington Tutoring, LLC, Andy is an implementation specialist with a pension actuarial service provider in Natick, where he provides technical expertise, project management, and data analysis for the client support team. His talents for building consensus, finding compromises that work for all parties, meeting internal and external deadlines, juggling a large number of projects concurrently and extending a helping hand to his peers have been much commended by his colleagues.

Andy’s passion for math and science, his attention to detail, his exemplary interpersonal and organizational skills and his mentoring background all contribute to his strength as a tutor and homework coach.

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 across the curriculum, including Spanish I & II

MCAS, SAT, ACT & GRE prep; SAT II Subject Tests: Math I, Math II &  Physics

AP tutoring & exam prep: Statistics, Calculus AB & Calculus BC

When she's not homework coaching, math tutoring or providing GRE, 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.

Sarah Hughes, MEd

AP, honors & standard level English & American literature, composition & writing; AP, honors & standard level calculus, algebra 1 & 2, precalculus/trigonometry, geometry; homework coaching in biology, chemistry, physics, history  & Spanish

MCAS, SAT, ACT & GRE prep; SAT II Subject Tests: Math I, Math II, Physics, United States History & World History

AP tutoring & exam prep: English Language &Composition, English Literature & Composition, Calculus AB & Calculus BC

MTEL prep: Communication & Literacy Skills (01)--Reading Subtest & Writing Subtest, General Curriculum (03)--Multi-Subject Subtest & Mathematics Subtest, Foundations of Reading (90), Mathematics (09), Mathematics (Elementary) (53) & Mathematics (Middle School) (47)

Sarah Hughes, the head of the math department at a Metro West high school, is a seasoned, certified teacher with a BA in Math and English from St. Mary’s College of Maryland, an MEd from Harvard and two Massachusetts Educator’s certifications, English and Math.

Sarah’s good natured, patient style, her stellar academic background and her enthusiasm for her subjects have endeared her to her students, who call her “the teacher who loves math.” She is also a fine homework coach and SAT/SAT II prep provider, with a solid background in Spanish, history, biology and chemistry and a knack for improving her students’ organizational strategies, standardized test savvy and study skills. See this page of our website for some of the thank you emails we've received from the parents of Sarah's students.


Members of our learning disabilities team

Joshua Sanford, MEd

Pre-algebra, algebra I, world history, ancient history, U.S. History, English & language arts, writing & homework coaching, MCAS & SAT Reasoning prep, executive function coaching &  learning disabilities support

MTEL prep: Communication & Literacy Skills, Foundations of Reading, Middle School Humanities, English (07), Middle School Mathematics, Mathematics (47), Mathematics (09) & History (06)

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, 11 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.

Jessie Brauer, MSEd

MCAS, SAT & ACT prep; prealgebra & algebra 1, precalculus, earth science, biology, English, American, ancient & world history; homework coaching; computer skills training; MCAS prep, learning disabilities & executive function support & educational advocacy for students with special needs; K-12 reading, writing & math support

Jessie Brauer started with us in December of 2013 having recently relocated from San Diego. She has her BS in Special Education and General Education with a concentration in natural science from SUNY, Geneseo and her MS in Literacy from Nazareth College. She holds three New York State certifications: Reading Teacher K-12, Special Education K-12 and Elementary Education N-6 and two California certifications: Education Specialist for mild/moderate disabilities and Content Specialist in Reading.

Jessie has 10 years of experience teaching elementary, middle and high school students with a wide range of ability levels including students on the autism spectrum, students with severe emotional disturbances, ADD, ADHD, executive functioning disorders, dsylexia, dysgraphia, and learning disabilities in reading and math. Jessie also has 2 years of experience as assistant director of the ABC International School in Tokyo, organizing the daily operation of a preschool for 150 children and supervising, training, and evaluating their staff of 40 teachers.

Jessie has been a key member of IEP development teams, administering standardized testing such as the Woodcock-Johnson IIIR and the TOWL (Test of Written Language). Jessie also utilizes informal reading assessments such as The Lois Bader Reading and Language Inventory and the Informal Reading Inventory by Burns & Roe to identify areas for reading remediation. She is trained in the Wilson Reading Program, Handwriting Without Tears, Rebecca Sitton Spelling, Life Space Crisis Intervention, Everyday Math, Applied Behavior Analysis and Positive Guidance.

Jessie has been much praised by her colleagues, her students and their parents for her diverse knowledge base, her substantial teaching experience, her enthusiasm for working with learning disabled students, her engaging sense of humor and her talent for utilizing behavior modification and metacognition techniques to support students through very challenging behaviors.

Anna Angelova, MEd

Mathematics: pre-algebra, algebra 1 & 2, geometry; English & language arts: vocabulary, comprehension, spelling, writing; specialized reading instruction ( Wilson Reading); English as a second language; ancient & world history; geography; MCAS prep; homework coaching, learning disabilities support & executive function support

MTEL prep: English as a Second Language (54) & Mathematics (09)

Anna Angelova, a Lexington resident, is the newest addition to our Learning Disabilities team, having been selected from quite a few applicants for her extensive training and her diverse talents. Anna holds a BA in Applied Linguistics and an MEd in Special Education: Moderate Disabilities. She is certified in the Wilson Reading Program and licensed in Mathematics K- 9 and Moderate Disabilities (K-8, 5-12). Anna actively participates in IEP meetings by administering and analyzing Woodcock Johnson III assessments, writing IEPs and communicating with peer educator, psychologists and parents.

Previous to her eight years in the Boston Public School system, Anna taught Algebra and Language Arts at Veterans Upward Bound, Project Reach, Health Careers, and GEAR -- UMASS Boston based programs. Throughout her career, Anna has been recognized for improving student performance, developing innovative programs, instilling critical thinking, independence, and coping skills in her students and establishing cooperative relationships with students and parents.

In the course of Anna’s extensive experience as a special educator, Anna has provided a comfortable, productive and individualized learning environment for middle and high school students with a wide range of abilities including students with learning disabilities in math and reading, ADD, ADHD, socio-emotional disturbances and executive functioning difficulties. We are delighted to welcome her to Lexington Tutoring, LLC.

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 and Handwriting Without Tears.

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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