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"Do not go where the path may lead; go instead where there is no path and leave
a trail."
- Ralph Waldo Emerson

 * Quick Links:
 * Home
 * Math Handbooks
 * Android Apps
 * PC Apps
 * Math By Subject
 * Chemistry
 * Works of Noel Evans, Ph.D.
 * Math Club
 * Arithmetic Speed Practice
 * All Downloads
 * Math Tidbits
 * Tutors
 * About Us

Each link above takes you to a section of this website that contains material
developed specifically for the purposes identified.

If you would like to go directly to the download section, click on the "All
Downloads" link.

MathGuy.us was created to provide FREE MATERIALS for use by math students,
parents and teachers. You may use these materials free of charge as long as you
are using them for educational purposes in a public, private or home-school
setting. This includes tutoring and other educational activities for math
students, but not for-profit business entities. If you have a question about the
permissible use of these materials, please email Earl at mathguy.us@gmail.com.

In order to access much of the material on this website you will need the free
Adobe Reader, which is already installed on most computers (PCs and Macs), as
well as many tablets and smart phones. If you do not have the Adobe Reader
installed on your device, you may download it at get.Adobe.com/reader/. Note: to
avoid installing more software than you want, unclick the boxes under "Optional
offers" (middle column) when downloading the Adobe Reader.

Mathguy.us does not accept paid ads or funding of any type. The site is free of
outside influence and is provided as a community service.

Updated: April 26, 2024

IMPORTANT QUOTE

"Education isn't simply about pushing children over an artificial borderline,
but instead about stretching every pupil to unlock their potential and give them
the opportunity to get on in life." Nicola Morgan, Secretary of State for
Education, United Kingdom

QUICK REFERENCE

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GENERAL INTEREST AND NEWS

 * Marijuana linked to brain-related memory woes, schizophrenia risk in teens –
   Young people, please read this article, and stay away from things that reduce
   your brain function.
 * 2020 U.S. City Education Rankings – Results from a WalletHub study that ranks
   the education level of the top 150 U.S. Metroplitan Statistical Areas. Note:
   Reno, NV ranks number 26 (out of 150) in quality of education.
   
 * Earl's Success Tips – Tips to excel in any math or science class (one page).
   Based on experience working with high-performing high school and college
   students.

DRHS FBI CLUB

 * Click here (user ID and Password required) to go to materials relating to the
   2021 DRHS FBI Club.

WORKS OF NOEL EVANS, PH.D.

 * Click here to visit a page dedicated to the works of Noel Evan, Ph.D. Dr.
   Evans has devoted much of his life to making mathematics simpler and more
   enjoyable for the student. His works are well worth checking out.

ANDROID APPS

 * Android Apps page. Note: these apps can be run on a PC. See the Android Apps
   page for instructions on how to do that.

ALGEBRA

 * Algebra 1 page
 * Algebra 2 page
 * Algebra and PreCalculus Handbook version 3.5

GEOMETRY (FORMAL AND REGULAR)

 * Geometry page
 * Geometry Handbook version 4.2 - Major update in Version 4.

TRIGONOMETRY

 * Trigonometry page
 * Trigonometry - Key Formulas and Relationships – A 2-page summary of key
   formulas and relationships from the Trigonometry Handbook and more.
 * Trigonometry Handbook version 2.4

PRECALCULUS

 * PreCalculus page
 * Cramers Rule PC Mini-App version 1.2 – Solve 3 equations in 3 unknowns with
   Cramer's Rule. This app and other mini-apps may require you to install .Net
   6.0 from Microsoft. Microsoft will install the.Net runtime files as part of
   the app installation process. To install Cramers Rule PC Mini-App version
   1.2, follow these steps: 1) download the zip file by clicking on the link
   above, 2) double click on the downloaded file to open it, 3) move or copy the
   "CramersRule" folder to your desktop, 4) open the desktop folder and double
   click on the setup.exe file, 5) follow the on-screen instructions. If you get
   a "Windows protected your PC" window (which prevents the program from
   installing), click on "More info", then "Run anyway" to install the app.
   Enjoy!
 * Algebra and PreCalculus Handbook version 3.5
 * Algebra (Main) App version 0.8c – updated February 16, 2015. Note: when
   started, this app may take a few minutes to open. It is very large, so please
   be patient. I hope you will find it worth the wait when it opens.
 * Reflection Property of a Parabola – A 2-page description and proof that lines
   perpendicular to the directrix of a parabola reflect off the surface of the
   parabola and meet at its focus.

CALCULUS

 * Calculus page
 * Definite Integral as the Limit of a Riemann Sum - Explanation and
   Illustration of Process
 * DRHS Calculus Students - click here for access to the Syllabus, Lessons,
   Calendar, Assignments etc. for for both AB and BC classes.
 * DRHS Calculus Students - click here for access to homework solutions for both
   AB and BC classes.
 * College Board Calculus AB Free Response – Free response portion of AP
   Calculus Test AB
 * College Board Calculus BC Free Response – Free response portion of AP
   Calculus Test BC
 * Calculus Handbook version 5.6

 * TI nSpire page.
 * Using the TI nSpire Handheld version 3.0 – download as a Word Document or as
   a PDF Document.
 * Powerpoint Introduction to the TI nSpire CX CAS - contains a Microsoft PPTX
   presentation and a printout of the slides for taking notes.

 * Using a Table to Approximate a Limit
 * Limacon Areas – Development of the area between the loops of a Limacon.
 * Taylor Series – Two developments of the Taylor Series formula, an example of
   how to create a Taylor Series using a table, and an example of the Lagrange
   Remainder.
 * Power Series to Memorize – Memorize these power series to enhance your AP
   Calculus BC score. Includes a table of series to memorize and a blank table
   to practice with.

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AVAILABLE MATERIALS

Below is a description of the materials available on this website. They were
developed over a period of years during which Earl has tutored math at the
Damonte Ranch High School in Reno, Nevada. We have included math handbooks that
can be used as references for many math classes, PC apps developed to help the
student "explore" math, answers to sample exams on numerous topics, Excel files
to deal with specific math issues, and much more. We welcome any comments or
suggestions to improve the materials; please send an email to the above address
and we will see what we can do.


MATH HANDBOOKS

The Math Handbooks cover Pre-Algebra, Algebra (through Pre-Calculus), Geometry,
Trigonometry and Calculus. They began as a set of explanatory notes for tutoring
students. Over time, we accumulated enough notes to organize them, eventually
filling in any significant gaps to get a fairly comprehensive set of materials
for typical high school and elementary college math classes.

The handbooks, in aggregate, contain over 600 pages of material, organized (to
the extent possible) in one- or two-page segments by subject area. The intent is
that a student needing a reference for a particular issue in math would be able
to print one or two pages that would help them learn how to perform the task at
hand and that would serve as a reference whenever one was needed.

To visit the Math Handbook download page, click here.


PC APPS

The Math Suite of Apps is a set of software programs designed to help students
learn by "exploring" the math they are learning. For example, if you graph a
hyperbola based on a certain set of parameters, what happens to the graph if you
change those parameters? Using paper and pencil, this could take a long time to
investigate, but using an app, the answer appears in seconds. The same holds
true for changing the slope of a line, selecting a different variable to
eliminate in a system of equations, and many other areas of math. Our hope is
that the apps will enhance learning of some of the more difficult parts of
algebra and related subjects.

The Math Suite of Apps is written in Visual Basic, which is part of the
Microsoft Visual Studio. The following apps are included in the Suite:

 1. Basic Algebra App – primarily relating to all aspects of numbers.
 2. Algebra (Main) App – main Algebra app for Algebra 1 through Pre-Calculus.
 3. Trigonometry App – app relating to Trigonometry. This app is limited in
    scope at the moment, but covers a number of key concepts in its current
    form.
 4. ProbStat App – app relating to Probability and Statistics
 5. GraphPaper App - app to create graph paper in either Cartesian or Polar
    form.
 6. Speed Practice App (see below) - app to improve your arithmetic skills.

The apps are in development, so not all planned capabilities are available yet.
The version number of each app is provided on the opening screen for that app.

You may download the apps and use them to help you explore mathematics. They are
designed for use on the PC, and are not available for Apple products.

To learn more about the PC Apps or to download them, click here.


MATH BY SUBJECT

This section organizes the site's materials by course, and includes sample tests
with step-by-step solutions for many courses, including Trigonometry and AP
Calculus. Information relating to the Nevada High School Proficiency Exam,
including sample tests, is also provided. In addition, we identify a number of
publications from other sources that may be useful references to math students.

To visit the Math by Subject page, click here.


ARITHMETIC SPEED PRACTICE

Success in math classes can be enhanced by increasing your ability in
arithmetic, both in accuracy and in speed. A number of Speed Practice files are
provided to help you do this. Choose from a Microsoft Excel file that allows you
to generate problems and print them (both problems and answers) or a PC App that
allows you to work on your computer screen (or download both). Either way, using
these files will help you improve your arithmetic ability so that you can spend
more time learning math and less time struggling with arithmetic.

To visit the Arithmetic Speed Practice download page, click here.


MATH TIDBITS

This section provides "tidbits" of mathematics that we have found interesting
and have investigated to some degree. Also, will provide essays on subjects
related to education in general and math education in particular. We hope you
also find them to be of some interest.

To visit the Math Tidbits page, click here.


MATH TUTORS

To locate tutors in math and science in your area, please contact your local
high school or college. Tips for finding the right tutor for you are provided on
this page.

A listing of colleges/universities and high schools in the Reno, Nevada area are
provided here.

 

NUMBER OF VISITORS TO THIS WEBSITE: 2,412,458

©2007-2024 Earl Whitney, Reno, NV