My teaching method concentrates on problem solving, since most exams require problem solving. I teach freshman to senior level college courses as well as Developmental Math covering Math basics up to College Algebra. I also teach Differential Equations and a wide variety of Electrical Engineering, Physics, and Mechanical Engineering courses.
I'm an Engineer with experience in industry, resulting in 29 patents, as well as in Forensic Consulting, where I'm a court recognized Forensic Engineer and Fire and Explosion Investigator in federal and state criminal and civil courts. Now I'm teaching Math, Physics, Engineering, and Forensics in college.
Travel is billed at 50 cents per mile. Cancellation fee: full cost if travel to your location. $30 if online lesson cancelled.
College Professor, years of tutoring experience, my students have 92% to 100% exam pass rates on standardized exams in Math at a college, where college wide pass rates in same subject areas were 72%.
Basic rate of $45/hour is for high school level Math tutoring, and $50 /hour for high school level Physics tutoring;
$60/hour for 100 level college course tutoring in Math, Physics, Electrical Engineering, Mechanical Engineering, and Fire and Explosion Investigation subject areas;
$70/hour for 200 level college course tutoring in Math, Physics, Electrical Engineering, Mechanical Engineering, and Fire and Explosion Investigation subject areas;
$80/hour for 300 level college course tutoring Physics and Electrical Engineering subject areas;
$90/hour for 400 level college course tutoring Physics and Electrical Engineering subject areas; and
$120/hour for delivering customized lessons.
Let me know what you seek and we can customize a plan just for you.
ROY HOFFER, P.E.
Mathematics Educator with 15 years higher education experience teaching 525 contact hours, including online hybrid courses, Developmental Math, College Algebra, Statistics, and Differential Equations
Member Pennsylvania State Mathematics Association of Two-Year Colleges
Certified by the Commonwealth of Virginia to teach online
College wide highest student success rate in Developmental Mathematics at Lord Fairfax Community college.
91% to 100% student success rate, compared to 74% college average. Success defined as students achieving scores of 80% or higher on college wide standardized exams within Pearson MyMathLab.
Available and willing to teach day, evening, night, weekend, online, and on or off campus classes at multiple sites, enjoy teaching Developmental Math courses.
Experienced with diverse learning styles and facilitating student learning and mastering of course material.
Skilled in developing new courses and curriculum, program and course assessment, accreditation, student advising, college service, professional development, and serving on boards of directors.
Skilled in teaching from Community College courses up to senior courses at Pennsylvania State University.
Skilled with Pearson MyLabsPlus and MyMathLab, Desire2Learn, Blackboard, and Angel Learning Systems
Experience placing contents of entire course online for student access at their convenience
Skilled with Microsoft PowerPoint, Excel, Word, Access, Publisher, Outlook, Matlab, C++
EDUCATION, QUALIFICATIONS and ACCOMPLISHMENTS
Ph.D. candidate in Education, Newburgh Theological Seminary, with planned June 2020 completion
MS, Math Minor, Electrical Engineering Major, University of Pennsylvania
30 Graduate Math Credits:
Complex Variables: 3 credits
Graduate Math 1 and 2: 6 credits, linear algebra, etc.
Graduate Independent Study and Thesis/Dissertation Research, 21 credits, for Math analysis using Laplace Transforms to solve the transient diffusion differential equation.
9 Graduate Credits in highly Math intensive courses:
Electro-Magnetic Field Theory. 3 credits, highly math oriented analysis, integrating over 3 dimensional surfaces
Intro Linear Networks. 3 credits, highly math intensive analysis using linear algebra
Signal Theory and Processing Techniques. 3 credits, highly math intensive Fourier analysis.
BS, Physics Major, Math Minor, Magna cum Laude, Millersville University
27 Undergraduate Math Credits:
Calculus 1, 2, and 3. 12 Credits Intro Computing, in Math Department. 3 Credits
Applied Analysis. 3 Credits Boundary Value Problems. 3 Credits.
Partial Differential Equations. 3 Credits Ordinary Differential Equations. 3 Credits
16 Undergraduate highly Math intensive Credits:
Quantum Mechanics. quantum theory using Operator Algebra on a Hilbert space. 4 Credits
Electromagnetic Field Theory 1 and 2. Mathematical Analysis of Fields, 3-D integrations, Maxwell's equations, Solutions to Laplace’s equation. 6 Credits
Multi-Particle Quantum Systems and Statistical Mechanics. 3 Credits
Math-Physics: Statistical Communications Theory. 3 Credits
Other Math Courses: Probability and Statistics
Licensed Professional Engineer (by examination), Commonwealth of Pennsylvania
MATH TEACHING, LESSON PREPARATION and TUTORING EXPERIENCE
Math Courses Taught:
Clinical Math: Nursing Math, Calculating Drug Dosages, Algebra, Geometry, Trig
Foundations of Math: quantitative investigation, problem solving method, logic, Fibonacci sequence, cardinality, golden ratio, Platonic solids, Euler Characteristic, chaos, fractals, probability, Law of Large Numbers
Mathematics for Liberal Studies: management science, probability, statistics, social choice, geometry, measurement, computer science, algebraic concepts
College Math 2: trig, exponential & log functions, polar coordinates, DeMoivre’s Theorem, vector operations, recursion formulas, summations, sequences, counting theory, probability, permutations, combinations.
College Math 1: algebra, trig, exponents, complex numbers, linear inequalities, composite functions, graphs, systems of linear equations in 2 and 3 variables
First and second order ordinary differential equations, Laplace & inverse Laplace Transforms, Fourier & inverse Fourier Transforms, Fourier series & analysis, network functions, Bode plots, state space methods, MATLAB
Developmental Math Courses Taught:
Whole Numbers, Operations with Fractions and Decimals & Percent, Algebra Basics, First Degree Equations and Inequalities in One Variable, Linear Equations, Inequalities & Systems of Linear Equations in 2 Variables, Exponents, Factoring & Polynomial Equations, Rational Expressions, Equations, Exponents, Radicals, Functions, Quadratic Equations, & Parabolas
Foundations of Algebra Intermediate Algebra Beginning Algebra
Pre-Algebra Basic Mathematics
Math Faculty, Albright College, Temporary Part Time, Reading, PA January to May 2019
Math 110, Statistics
Math Faculty, Wilson College, Temporary Part Time, Chambersburg, PA August 2018 to May 2019
Math 101, Mathematics for Liberal Studies.
Math 098, Intermediate Algebra: solving equations and inequalities, graphs of linear equations, polynomials: operations and factoring, rational expressions and equations, systems of equations, radical expressions and equations, quadratic equations, organizing and consolidating mathematical thinking, analyzing evaluating mathematical strategies, and expressing mathematical ideas precisely.
Math 096, Basic Mathematics: whole numbers, fractions, decimals, percent, data, graphs, statistics, geometry, real numbers, algebraic expressions, measures, weight, mass, capacity, time, temperature, and mathematical thinking, analysis, strategies, and expressing ideas precisely.
Physics Faculty, East Stroudsburg University,
Temporary Part Time, East Stroudsburg, PA January to May 2019
Assistant Professor of Math and Engineering, Lord Fairfax Community College,
Middletown and Warrenton, VA 2015 - 2018
Assistant Professor of Computer Science and Engineering, Shippensburg University,
Temporary 3/4 Time, Shippensburg, PA 2018
Faculty, Bloomsburg University of Pennsylvania, temporary full time and part time on a semester to semester basis, Bloomsburg, PA 2008 – 2011, 2013, and 2018
Assistant Professor of Engineering Technology and Engineering, Engineering Technology Program Coordinator, Community College of Baltimore County, Catonsville, MD 2014
Developmental Math Faculty, Westmoreland County Community College, Youngwood, PA 2012 - 2013
Assistant Professor of Computer Engineering Technology and Electrical Engineering Technology, California University of Pennsylvania, temporary full time, California, PA 2011 - 2013
Visiting Physics and Engineering Faculty, Elizabethtown College, one year temporary full time,
Elizabethtown, PA 2009 - 2010
Math Tutor and Faculty, Pennsylvania State University, temporary part time,
York and Harrisburg, PA 2004 2010
Developmental Math Faculty, Harrisburg Area Community College, temporary part time
Harrisburg and York, PA 2007 - 2009
Consultant, John Wiley & Sons, Inc., temporary part time, Newark, NJ 2008
Reviewed solutions for an Instructor’s and Student’s Solution Manual for a College Algebra text.
Math Faculty, York College of Pennsylvania, temporary part time, York, PA 2005 - 2008
Math Faculty, Lancaster General College, temporary part time, Lancaster, PA 2004 - 2007
Math Faculty, Pennsylvania College of Art & Design, temporary part time, Lancaster, PA 2006
Physics Faculty, Thaddeus Stevens College of Technology, full time, Lancaster, PA 1998 - 2000
Service to Students and to Colleges:
Provide one on one Math tutoring to students.
Advise, assist, and mentor students with career aspirations, course selection and registration, and academic advising. Hold scheduled and unscheduled office hours.
Conduct out of class half day Saturday pre exam review sessions for students.
Provide weekly out of class help sessions for students in addition to regularly scheduled office hours.
Document assessment outcomes for accreditation.
Organize and co-lead campus STEM Club. Create and advise Archery Club and ASME Student Section.
Serve at student Majors and Minors fair.
Faculty leader to develop and introduce new courses and program at multiple campuses.
Assist with marketing program to increase enrollment. Design curriculums and teach new courses.
Helped create new program to enable high school students to earn College credits at their high schools. This was accomplished through establishing a network of trainers who then train high school teachers how to conduct the courses at their individual high schools.
Supervise student internships. Work with Career Services to help students find careers and internships.
Invite speakers to campus to provide technical and industry presentations to students.
Voluntarily substitute teach classes for other professors.
Assist with student retention efforts by identifying at risk students to enable contacts to be made.
Assist with recruiting students into major.
Active in Curriculum, Faculty and Teaching, and Library Committees. Participate in Faculty Senate.
Other courses taught include:
Physics, Engineering Economy, Statics, Dynamics, Electric Circuits w/Lab, DC/AC Circuits, Digital Electronics with Boolean algebra, Instrumentation, Microprocessors, Circuit Analysis, and Fire and Explosion Investigation.
Energy producing solar cell systems. Energy storage systems, batteries
Power Inverters that put energy back onto utility grid from solar cells and battery storage
Energy Saving variable speed motor drives for single phase residential and three phase motors
RESEARCH, self funded
New low cost consumer Switched Mode Power Supply, SMPS, boost converter circuit extracts maximum energy from consumer batteries, reducing flow of used batteries into landfills
New low cost energy efficient digital camera and video supplemental lighting unit
Lighting Systems and Devices: LED lighting and high efficiency energy saving fluorescent lighting
Ergonomic mechanism to lower the force required to operate a machine
Ergonomic new design for hand held consumer product
New lower cost ergonomic and compact handle for consumer product
New lower cost mass air flow sensor for vehicle engines
Environmentally friendly and efficient energy generation unit (proprietary effort in affiliation with York College J. D. Brown Center for Entrepreneurship)
29 International Patents
“Study Skills Guide for STEM Students”, self published, and provided to students within a PowerPoint.
“Student success guide for Lab”, self published lab guide provided to Lab students.
“Effects of Surface Recombination on Minority Carrier Lifetime Measurements by the Diode Reverse Recovery Time Method”, involving use of Laplace Transforms for solving the transient diffusion differential equation in semiconductors.
CONTINUING PROFESSIONAL DEVELOPMENT and CONTINUING PROFESSIONAL EDUCATION
As temporary faculty and adjunct, attend continuing professional education and development courses at own expense, including:
Pennsylvania Association of Arson Investigators, Annual Training, State College, PA (required training to maintain Fire and Explosion Investigator Certification).
Over 1500 hours total continuing professional education.
INDUSTRY AND CONSULTING EXPERIENCE: use Math daily to solve industry challenges
Safety Specialist / Forensic Specialist, Travelers Insurance Company, Windsor, CT 2014 - 2015
Forensic Engineering Consultant and Fire Investigator, Lancaster, PA 2000 - 2009
Consulting Engineer and Fire Investigator, Robson Lapina, Inc., Lancaster, PA 1996 - 1998
Calibration Engineer, Pfizer Pharmaceuticals, Lititz, PA 1994 1996
Supervisor, Datcon Instrument Co., East Petersburg, PA 1991 1993
Mentor women and other diverse math, engineering, and science students through MentorNet.
Math competition for 8th grade students MathCounts volunteer.
Mentor college students of color through Millersville University Mentoring Alliance Program.
Writing Mentor, University of Pennsylvania The Writers House.
Student Mentor, Job Shadowing Program, and Career Conference Presenter, Penn State University.
Treasurer, Board of Directors, and Elementary School presenter of career opportunities in Math and Science, Lancaster-Lebanon Math and Science Alliance.
Board of Directors, Scholarships Committee Chair, and Newsletter Co-Editor, National Society of Professional Engineers.
Board of Directors: Pennsylvania Association of Arson Investigators.
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