Sadil De Silva

Meet Sadil De Silva - Expert Math, Science, SAT & ACT Tutor

Sadil De Silva has more than 10 years of experience tutoring kindergarten through college students in math up to Calculus 2, science, AP Biology, psychology and English, along with preparation for all sections of the SAT and ACT and for the SSAT, ISEE, HSPT and CogAT. He holds a Bachelor of Science in Psychology and Neurobiology & Physiology from the University of Maryland. Sadil has worked as a Scholastic Tutor at Academic Pathways / SpiderSmart Learning Center in Rockville since 2019, has tutored math privately since 2016, and served as a mathematics tutor and assistant director at a math learning center in Potomac. Based in Maryland's Rockville/Potomac area, Sadil tutors in person in students' homes and at local libraries across Arlington and Alexandria, explaining every step of an example and then working through problems with each student until they can do them on their own.

Areas Of Expertise

  • Mathematics (Elementary through Calculus 2): Sadil has taught mathematics from elementary school through calculus, with Calculus 2 as the highest level he tutors, and since 2016 he has provided one-on-one instruction in upper-level high school math as a private tutor. He plans individualized lessons and adjusts his approach to each student's specific questions, gaps and learning pace.

  • Science: Science is, along with math, Sadil's preferred tutoring subject, and he has instructed K-12 and college students in science through individualized tutoring at Academic Pathways / SpiderSmart Learning Center. He goes over an example with each student, explaining every step, before they work through problems together.

  • AP Biology: Sadil tutors AP Biology, and he studied Neurobiology & Physiology for his Bachelor of Science at the University of Maryland. In laboratory work with a University of Maryland biology professor, he analyzed electrophysiological data and mapped retinal neural networks as part of research on neural circuits and sensory information.

  • Psychology: Sadil tutors psychology and earned his Bachelor of Science in Psychology from the University of Maryland. As in every subject he teaches, he works through problems alongside the student, with patience and understanding, until they can do them on their own.

  • English: Sadil has instructed K-12 and college students in English through individualized tutoring at Academic Pathways / SpiderSmart Learning Center, and his skills include elementary reading and writing. He adapts his explanations and practice activities to each student's needs, learning pace and subject challenges.

  • SAT Preparation (All Sections): Sadil prepares students for every section of the SAT, including SAT Math and SAT Reading and Writing, and his skills include curriculum and test-prep design. As a private tutor, he has prepared students for the SAT math section using targeted practice and clear explanations.

  • ACT Preparation (All Sections): Sadil prepares students for all sections of the ACT and has prepared students for the ACT at Academic Pathways / SpiderSmart Learning Center using targeted instruction. As a private tutor, he has also prepared students for the ACT mathematics section.

  • SSAT, ISEE, HSPT & CogAT Preparation: At Academic Pathways / SpiderSmart Learning Center, Sadil has prepared students for the SSAT, ISEE, HSPT and CogAT examinations using targeted instruction. He tailors practice to each student's learning pace and the challenges they face.

  • Grade Levels: Kindergarten through college, plus adult learners. Most of Sadil's experience is with middle and high school students, and he is comfortable working with students at every level.

Teaching Philosophy

"I go over an example with them, explaining every step. Then I try to work through one, or a few, with them until they can do it on their own. This requires patience and understanding."

What Makes Sadil Special

  • 10+ Years of Tutoring Experience: Sadil has more than 10 years of experience tutoring kindergarten through college students in mathematics, science, English and SAT/ACT preparation. His skills include individualized instruction, test-prep design, student progress tracking and learning accommodations.

  • Scholastic Tutor, Academic Pathways / SpiderSmart Learning Center: In Rockville, Sadil has instructed K-12 and college students in mathematics, science and English and prepared students for the SAT, ACT, SSAT, ISEE, HSPT and CogAT. He has also supported operations across multiple learning centers and contributed to child-development programming.

  • Mathematics Tutor & Assistant Director, Math Learning Center: At a math learning center in Potomac, Sadil taught mathematics from elementary school through calculus and supported students requiring individualized attention. He tracked and reported student progress to keep parents informed through clear, accessible updates, and as assistant director he opened and closed the center and ensured consistent student supervision.

  • Neuroscience Research Experience: Working with a University of Maryland biology professor, Sadil analyzed electrophysiological data and mapped retinal neural networks as part of research on neural circuits and sensory information. He documented his findings with precision and consistency.

  • Communication: Sadil is comfortable using text and email to stay in touch, and parent communication is among his listed skills.

Education & Achievements

  • Bachelor of Science in Psychology and Neurobiology & Physiology, University of Maryland. Laboratory research on neural circuits and sensory information.

  • Master of Business Administration, Healthcare, Franklin University.

  • Certificate in Medical Laboratory Sciences, George Washington University.

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