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PhD Math Teacher; Retired NASA Earth Scientist. I am here to help you.
Mark H.

4.9 (164 ratings)

430 hours tutoring

Your first lesson is backed by our Good Fit Guarantee
Hourly Rate: $80
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About Mark

Bio

Hi,

My name is Mark. I am a teacher of Mathematics and Physics and a recently retired Earth Scientist from the NASA - Goddard Space Flight Center. I have BS and PhD degrees in Mathematics from MIT and Cornell. I would like to share my knowledge and understanding of Mathematics, Physics, Earth Science, and Computers with the next generation of students and professionals. I have over 2100 hours of tutoring experience in Mathematics, Statistics, Physics, Technical Writing, SATs/ACTs and...

Hi,

My name is Mark. I am a teacher of Mathematics and Physics and a recently retired Earth Scientist from the NASA - Goddard Space Flight Center. I have BS and PhD degrees in Mathematics from MIT and Cornell. I would like to share my knowledge and understanding of Mathematics, Physics, Earth Science, and Computers with the next generation of students and professionals. I have over 2100 hours of tutoring experience in Mathematics, Statistics, Physics, Technical Writing, SATs/ACTs and related areas with more than 95 students.

I am here to help you! I am here to help you master the powerful mathematical and scientific tools that will support your education and your career. I am here to present a broader, gentler picture of math and science and to demonstrate to you the enormous scope, power, and benefits of these subjects for almost any endeavor.

I am here to teach you to use your natural intuition and creativity to understand and solve problems in these subjects and in life in general. I am here to show you how to break problems down into small, manageable steps and to build up your self-confidence in applying the natural mathematical talent that you and everyone else is born with.

I have taught classes at Cornell University, the State University of New York, New York University, Columbia University, the University of Maryland, and at Marymount University in Arlington, Virginia. I am currently a substitute teacher in the Montgomery County Public School System and a Math teacher for the Art of Problem Solving Academy in Gaithersburg, MD. I have also received examination preparation training from Kaplan.

Please let me know how I can help you.

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Education

Mass. Inst. of Technology
Mathematics
Cornell Univ.
PhD

Policies

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Approved Subjects

ACT Math

ACT Math

I scored a 790 on my SAT Math test. I have received examination preparation training from Kaplan. I have over 1450 hours tutoring experience with over 90 students, including many in ACT, SAT, GMAT, GRE, and ASVAB/OAR. I have helped many of my SAT and ACT students improve their scores. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitted to the CTY Gifted and Talented Summer Program at Johns Hopkins University and an ASVAB student to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking.
ACT Science

ACT Science

I have received examination preparation training from Kaplan. I have over 1450 hours tutoring experience with over 90 students, including many in ACT, SAT, GMAT, GRE, and ASVAB/OAR. I have helped many of my SAT and ACT students improve their scores. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitted to the CTY Gifted and Talented Summer Program at Johns Hopkins University and an ASVAB student to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking. I have helped students gain admission to Officer Candidate School for both the Navy and Army, including one student who increased his ranking from the 60th percentile ranking to the 80th percentile.
Algebra 1

Algebra 1

Algebra has been the staple of my education and career from Junior High School through High School, my undergraduate days at MIT, graduate school at Cornell up through my 35+ years as an Earth Scientist/Atmospheric Modeler at NASA, where I applied various levels of Algebra, from simple to abstract, daily. I have taught elements of Algebra at the Undergraduate level at the State University of New York at Purchase and at Marymount University in Arlington, VA and at the Middle School and High School levels within the Montgomery County Public School System. I have taught Algebra or its applications to virtually all of my 90+ tutoring students over the past 5 years.
Algebra 2

Algebra 2

Algebra has been the staple of my education and career from Junior High School through High School, my undergraduate days at MIT, graduate school at Cornell up through my 35+ years as an Earth Scientist/Atmospheric Modeler at NASA, where I applied various levels of Algebra, from simple to abstract, daily. I have taught elements of Algebra at the Undergraduate level at the State University of New York at Purchase and at Marymount University in Arlington, VA and at the Middle School and High School levels within the Montgomery County Public School System. I have taught Algebra or its applications to virtually all of my 90+ tutoring students over the past 5 years.
Astronomy

Astronomy

I have studied Astronomy as an undergraduate at the Massachusetts Institute of Technology, and I am currently involved, through the American Geophysical Union, in a project to study the properties and characteristics of the Earth-like exoplanet, Gliese 581-d.
ASVAB

ASVAB

I am an experienced ASVAB/OAR tutor. I have received examination preparation training from Kaplan. I have helped one of my ASVAB students to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking. I have helped students gain admission to Officer Candidate School for both the Navy and Army, including one student who increased his ranking from the 60th percentile ranking to the 80th percentile. I have helped many of my SAT and ACT students improve their scores.
Calculus

Calculus

I studied Calculus in high school and as an undergrad at the Massachusetts Institute of Technology. I taught it and applied it to my PhD thesis on non-linear partial differential equations at Cornell University. I applied Calculus extensively in my years as Earth Scientist and numerical modeler of the Earth's Land/Ocean/Atmosphere System at the NASA/Goddard Space Flight Center. I have over 1450 hours tutoring experience, including Calculus at all levels.
Differential Equations

Differential Equations

I studied and taught Partial Differential Equations as part of my graduate work at Cornell University. My PhD thesis consisted of the derivation and solution of non-linear partial differential equations for the solution of problems in Geophysics and Supersonic Aerodynamics using the multi-scale methodology.
Discrete Math

Discrete Math

I have taught related Finite Mathematics courses at the Undergraduate level at the State University of New York at Purchase and at Marymount University in Arlington, VA and at the high school level within the Montgomery County Public School System. I have over 1450 hours tutoring experience, including Discrete Math, Finite Math, Algebra, Linear Algebra, Precalculus, Probability, and Statistics at all levels.
Ecology

Ecology

I have vast experience at NASA in climate simulation modeling, and in the analysis of climate variability and climate change. I have carried out studies of precipitation, drought, hydrology, the moisture budget. and the biosphere, including the distribution and changes of tree and plant canopies and their interactions with the lower atmosphere. I have experience with global modeling and satellite observations of atmospheric pollution, environmental hazards, chemistry, and health risks due to climate variability/change. I have over 1450 hours tutoring experience with over 90 students, including several who were involved in the study of environmental topics.
Elementary Math

Elementary Math

I have tutored Elementary Mathematics and Math enrichment to students as young as 6-years old and through all ages up until middle school. I have helped my students to do well in the SSAT test and the Kangaroo Competition and to gain admission to the prestigious CTY Gifted and Talented Summer Program at Johns Hopkins University. I am currently a 3rd grade Math teacher at the Art of Problem Solving Academy in Gaithersburg, MD and a substitute Math and Science teacher for middle and high school within the Montgomery County Public School System.
Elementary Science

Elementary Science

I have over 30 years experience as a NASA scientist.
Finite Math

Finite Math

I have applied many disciplines of Finite Mathematics in my 35+ years of experience as an Earth Scientist/Atmospheric Modeler and Analyst at the NASA/Goddard Space Flight Center. I have a taught Finite Mathematics at the Undergraduate level at the State University of New York at Purchase and at Marymount University in Arlington, VA and at the high school level within the Montgomery County Public School System. I have over 1450 hours tutoring experience, including Finite Math, the related and much more difficult discipline of Discrete Math, Algebra, Linear Algebra, Precalculus, Probability, and Statistics at all levels.
Fortran

Fortran

I have over fifty years of programming experience in Fortran, Fortran 77 and Fortran 90. I learned Fortran as an undergraduate at MIT, and have used it there, as a graduate student at Cornell University, and as a scientist and Senior Programer at MIT, at New York University, at the NASA/Goddard Institute for Space Studies, and at the NASA/Goddard Space Flight Center. I have over 1450 hours tutoring experience with over 90 students, including many in various levels of Fortran and in other areas of Computer Science.
GED

GED

I scored a 790 on my SAT Math test. I have received examination preparation training from Kaplan. I have over 1450 hours tutoring experience with over 90 students, including many in GRE, GMAT, SAT, ACT, and ASVAB/OAR. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitted to the CTY Gifted and Talented Summer Program at Johns Hopkins University and an ASVAB student to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking. I have helped students gain admission to Officer Candidate School for both the Navy and Army, including one student who increased his ranking from the 60th percentile ranking to the 80th percentile. I have over 1450 hours tutoring experience with over 90 students, including many in ACT, SAT, GMAT, GRE, and ASVAB/OAR. I have helped many of my SAT and ACT students improve their scores. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitted to the CTY Gifted and Talented Summer Program at Johns Hopkins University and an ASVAB student to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking. I have helped students gain admission to Officer Candidate School for both the Navy and Army, including one student who increased his ranking from the 60th percentile ranking to the 80th percentile. I have over 1450 hours tutoring experience with over 90 students, including many in ACT, SAT, GMAT, GRE, and ASVAB/OAR. I have helped many of my SAT and ACT students improve their scores. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitte
Geometry

Geometry

I have actively applied the principles of Geometry and Trigonometry daily throughout my 35+ years of work at the NASA/Goddard Space Flight Center as an Earth Scientist/Mathematical Modeler of the Earth's Land/Ocean/Atmosphere System. I have taught elements of Geometry and Trigonometry over the past 5 years to Middle School and High School students within the Montgomery County Public School System, to students at the Art of Problem Solving Academy in Gaithersburg, MD, and to many of my 90+ tutoring students.
GMAT

GMAT

I scored a 790 on my SAT Math test. I have received examination preparation training from Kaplan. I have over 1450 hours tutoring experience with over 90 students, including many in GMAT, GRE, SAT, ACT, and ASVAB/OAR. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitted to the CTY Gifted and Talented Summer Program at Johns Hopkins University and an ASVAB student to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking. I have helped students gain admission to Officer Candidate School for both the Navy and Army, including one student who increased his ranking from the 60th percentile ranking to the 80th percentile. I have helped many of my SAT and ACT students improve their scores.
Grammar

Grammar

I have been editor for scientific, technical, and popular manuscripts published by the Global Modeling and Assimilation Office at the NASA/Goddard Space Flight Center. I have also been responsible for reviewing and correcting grammar as a peer reviewer for many scientific journals in the areas of Climate, Meteorology, and Applied Science. Since my retirement from NASA, I have been a freelance editor for scientific, mathematical, and technical journals through Cactus Communications and Enago Editing Services. I also have over 100 hours of experience editing technical papers written by scientists and engineers at the National Institute for Standards and Technology (NIST).
GRE

GRE

I scored a 790 on my SAT Math test. I have received examination preparation training from Kaplan. I have over 1450 hours tutoring experience with over 90 students, including many in GRE, GMAT, SAT, ACT, and ASVAB/OAR. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitted to the CTY Gifted and Talented Summer Program at Johns Hopkins University and an ASVAB student to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking. I have helped students gain admission to Officer Candidate School for both the Navy and Army, including one student who increased his ranking from the 60th percentile ranking to the 80th percentile. I have over 1450 hours tutoring experience with over 90 students, including many in ACT, SAT, GMAT, GRE, and ASVAB/OAR. I have helped many of my SAT and ACT students improve their scores. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitted to the CTY Gifted and Talented Summer Program at Johns Hopkins University and an ASVAB student to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking. I have helped students gain admission to Officer Candidate School for both the Navy and Army, including one student who increased his ranking from the 60th percentile ranking to the 80th percentile. I have over 1450 hours tutoring experience with over 90 students, including many in ACT, SAT, GMAT, GRE, and ASVAB/OAR. I have helped many of my SAT and ACT students improve their scores. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitte
Linear Algebra

Linear Algebra

Algebra has been the staple of my education and career from Junior High School through High School, my undergraduate days at MIT, graduate school at Cornell up through my 35+ years as an Earth Scientist/Atmospheric Modeler at NASA, where I applied various levels of Algebra, from simple to linear systems to ab, daily. I have taught elements of Algebra at the Undergraduate level at the State University of New York at Purchase and at Marymount University in Arlington, VA and at the Middle School and High School levels within the Montgomery County Public School System. I have taught Algebra or its applications to virtually all of my 90+ tutoring students over the past 5 years.
Logic

Logic

I have studied several aspects of logic both as an undergraduate at MIT and as a PhD student at Cornell University, and I have actively used them in my work at the NASA/Goddard Space Flight Center in the mathematical modeling of the Earth's Land/Ocean/Atmosphere System.
Mechanical Engineering

Mechanical Engineering

For my PhD in Applied Mathematics at Cornell University, I focused on courses in Aeronautical Engineering and Applied Mechanics. My thesis focused on a problem in Aeronautical Engineering: specifically, flow over and design of wing design for supersonic aircraft, I have tutored many students in many branches of Engineering, Including Mechanical Engineering. I tutored one specific student for several months to prepare her for her Fundamentals of Engineering exam. I have recently been tutoring a 4th/5th year college student for several of his Bio-Medical Engineering courses.
Music Theory

Music Theory

I have been a student of music theory and composition and have composed several shorter musical works.
Physical Science

Physical Science

I have more than 35 years experience at the NASA/Goddard Space Flight Center in studying and numerically modeling the physics of the Earth's Atmosphere/Land/Ocean System. I studied Physics in high school and as an undergrad at the Massachusetts Institute of Technology. I applied principles of Physics to my PhD thesis on non-linear partial differential equations for Geophysics and Supersonic Aerodynamics at Cornell University. I have over 1450 hours tutoring experience, including Physics at all levels.
Physics

Physics

I have more than 35 years experience at the NASA/Goddard Space Flight Center in studying and numerically modeling the physics of the Earth's Atmosphere/Land/Ocean System. I studied Physics in high school and as an undergrad at the Massachusetts Institute of Technology. I applied principles of Physics to my PhD thesis on non-linear partial differential equations for Geophysics and Supersonic Aerodynamics at Cornell University. I have over 1450 hours tutoring experience, including Physics at all levels.
Prealgebra

Prealgebra

I have tutored Elementary Mathematics, Math enrichment, and Prealgebra to students as young as 6-years old and through all ages up until Middle School. I have helped my students to do well in the SSAT test and the Kangaroo Competition and to gain admission to the prestigious CTY Gifted and Talented Summer Program at Johns Hopkins University. I am currently a 3rd grade Math teacher at the Art of Problem Solving Academy in Gaithersburg, MD and a substitute Math and Science teacher for Middle and High School within the Montgomery County Public School System. Algebra has been the staple of my education and career from Junior High School through High School, my undergraduate days at MIT, graduate school at Cornell up through my 35+ years as an Earth Scientist/Atmospheric Modeler at NASA, where I applied various levels of Algebra, from simple to abstract, daily. I have taught elements of Algebra at the Undergraduate level at the State University of New York at Purchase and at Marymount University in Arlington, VA and at the Middle School and High School levels within the Montgomery County Public School System. I have taught Prealgebra to many of my MCPS students and 90+ tutoring students over the past 5 years.
Precalculus

Precalculus

I taught elements of Pre-Calculus at the Undergraduate level at the State University of New York at Purchase and at Marymount University in Arlington, VA and at the high school level within the Montgomery County Public School System. I studied Calculus in high school and as an undergrad at the Massachusetts Institute of Technology. I taught it and applied it to my PhD thesis on non-linear partial differential equations at Cornell University. I applied Calculus extensively in my years as Earth Scientist and numerical modeler of the Earth's Land/Ocean/Atmosphere System at the NASA/Goddard Space Flight Center. I have over 1450 hours tutoring experience, including Precalculus and Honors Precalculus.
Probability

Probability

I have studied probability as an undergraduate at the Massachusetts Institute of Technology and have applied and developed skewed and unskewed bi-Gaussian probability distributions at the NASA/Goddard Space Flight Center to describe the moist processes that occur in the turbulent atmospheric boundary layer. I have taught basic elements of statistics and probability within a college level courses in Finite Mathematics and as a substitute teacher within the Montgomery County Public School System. I have over 1450 hours tutoring experience with more than 90 students, including many in Probability and Statistics at all levels.
Proofreading

Proofreading

I have been a peer reviewer for scientific journals, an editor for scientific and popular manuscripts published by my office at NASA and a freelance editor for scientific and technical publications.
PSAT

PSAT

I scored a 790 on my SAT Math test. I have received examination preparation training from Kaplan. I have over 1450 hours tutoring experience with over 90 students, including many in SAT, ACT, GMAT, GRE, and ASVAB/OAR. I have helped many of my SAT and ACT students improve their scores. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business.
SAT Math

SAT Math

I scored a 790 on my SAT Math test. I have received examination preparation training from Kaplan. I have over 1450 hours tutoring experience with over 90 students, including many in SAT, ACT, GMAT, GRE, and ASVAB/OAR. I have helped many of my SAT and ACT students improve their scores. I have helped one of my GMAT students gain admission and a scholarship at the University of North Carolina School of Business. I have also helped a young student to pass the SCAT exam to be admitted to the CTY Gifted and Talented Summer Program at Johns Hopkins University and an ASVAB student to successfully join the Navy by helping him to increase his ASVAB score from a 38th percentile ranking to a 52th percentile ranking. I have helped students gain admission to Officer Candidate School for both the Navy and Army, including one student who increased his ranking from the 60th percentile ranking to the 80th percentile.
Statistics

Statistics

I have a PhD in Applied Mathematics and have used statistics extensively in my research as an Earth Scientist at the NASA/Goddard Space Flight Center. I have computed and/or evaluated anomaly correlations to verify numerical weather predictions and to diagnose relationships between physical observations and possible causes. I have used statistical tools such as the Student test and Principal Components Analysis to better understand physical phenomena. I am also very experienced in applying statistical techniques and reasoning to simulate and understand atmospheric turbulence and dispersion. I have taught basic elements of statistics and probability within a college level courses in Finite Mathematics and as a substitute teacher within the Montgomery County Public School System. I have over 1450 hours tutoring experience with more than 90 students, including many in Probability and Statistics at all levels.
Trigonometry

Trigonometry

I have actively applied the principles of Geometry and Trigonometry daily throughout my 35+ years of work at the NASA/Goddard Space Flight Center as an Earth Scientist/Mathematical Modeler of the Earth's Land/Ocean/Atmosphere System. I have taught elements of Geometry and Trigonometry over the past 5 years to Middle School and High School students within the Montgomery County Public School System, to students at the Art of Problem Solving Academy in Gaithersburg, MD, and to many of my 90+ tutoring students.
Writing

Writing

I have vast experience in writing scientific papers for NASA and additional experience both in scientific editing and in the writing of science fiction short stories.
ACT English
ACT Reading
Chemistry
Geography
SAT Reading
SAT Writing
SSAT
Vocabulary
World History
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Ratings and Reviews

Rating

4.9 (164 ratings)
5 star
(150)
4 star
(13)
3 star
(0)
2 star
(0)
1 star
(1)

Reviews

Great experience!

I can't express enough praise for Dr. H! A true expert in his field, very passionate about his subject as well as warm and patient person. He has an amazing ability to explain the most difficult concepts and make it very accessible. My son has a great admiration and respect for Dr. H. After only a couple tutoring sessions with Dr. H I noticed a big improvement in my sons grades. Now he aces every test. Dr. H is a very inspiring and motivating teacher, I see a drastic improvement in my son's working habits in general.

Natasha, 40 lessons with Mark

Hard working and experienced

Mark taught pre calculus and calculus to my son (11th grade). He always had a lesson plan when he came for class. He brought extra teaching material to help during the class and gave homework for the next session. He went over difficult problems and explained each step as he went forward in solving the problem. Super helpful, and flexible in scheduling classes.

Raavi, 11 lessons with Mark

Great First Session

After my first meeting with Mr. H I felt comfortable. I was comfortable doing math in front of a tutor and I felt comfortable Mr. H was extremely knowledgeable. I look forward to working with Mr. H and would highly recommend him for other students.

Jack , 1 lesson with Mark

Knowledgeable

Dr Mark is very knowledgeable tutor. he is very motivating. but unfortunately because of our schedule obligation we couldn't use him.

VICTOR, 1 lesson with Mark

Great tutor. Knowledgeable, reliable, flexible.

Mark tutored my son in Calculus for a quarter. Only wish I had found him sooner. Very easy to interact with as a parent and student. Always encouraging of my son and gave him the confidence to do well and improve his grade. Extremely reliable in terms of promptness and preparation. Flexible when we asked him to be. You'll be happy if you give Mark a whirl. We recommend him highly.

Ed, 14 lessons with Mark

Inspiring Tutor

Mark has been tutoring my son in Calculus and Physics II. He is very patient and inspiring. Mark has been able to focus on my son's strengths and opportunities for improvement and encourage him to improve in the areas that need help. My son, an 11th grader, is much more confident about math and science and always welcomes his time with Mark. Mark has encouraged my so much that he actually spent several hours on extra credit physics problems and then helped a 12th grader with her homework. He did all of this with a smile on his face. I highly recommend Mark.

Robyn, 39 lessons with Mark

Very knowledgeable

Mark has years of experience in the Physics and Math fields. He makes formulas very understandable. My daughter was able to recall formulas that she learned three years ago with Marks help. Thanks Mark I know with your help she will do well on her SAT subject exams.

Caroline, 3 lessons with Mark
Hourly Rate: $80
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