Below are some free resources you can use. Please contact us and let us know if any of the links are broken.

## Weights, Measures, and Conversions

Links, resources and help with weights and measures, including converting from one system of measurement to another and converting units within a system of measurement.

- Conversion Calculator
- Conversion between Metric Units (Khan Academy video)
- National Institute of Standards and Technology
- The Mole and Avagadro's Number (Khan Academy video)
- Moles and Avogadro's Number (Khan Academy video)
- What is Avogadro's Number?

## Basic Arithmetic and Algebra

Links to resourses to improve arithmetic and algebraic skills.

- Algebra LAB (includes a glossary and lessons)
- Khan Academy: Resources
- Order of Operations
- Fractions
- Proportions
- Integer Exponents
- Equation Basics
- Word Problems

## Intermediate Algebra

*The Real Number System Resources*

*Factoring Polynomials Resources*

*Quadratic Formula Resources*

- Quadratic Formula Explanation
- Quadratic Formula (Khan Academy video)
- Quadratic Formula Song

*The Cartesian Coordinate System and Graphing*

*Functions*

## Advanced Algebra

Links to resources for advanced algebra topics, typically those that are relevant to success in biology, chemistry, economics, finance, calculus and disciplinary statistics courses.

*Logarithm Resources*

*Fractional and Negative Exponent Resources*

*Preparing for Calculus (MATH 070 or MATH 100)*

## Trigonometry

Links to resources related to trigonometric functions, graphs and applications, including the defintions of trigonometric functions on right triangles and on unit circles.

- Khan Academy: Trigonometry Resources
- Trigonometry Tutorial and Overview
- Overview of Geometry and Trigonometry
- Unit Circle
- Help Memorizing Trigonometric Values of Special Angles

*Trigonometry and Unit Circle Resources*

- Circular Definitions of Trigonometric Functions
- Unit Circle
- Help Memorizing Trigonometric Values of Special Angles

*Trigonometry and Right Triangle Resources*

*Resources on the Graphing of Trigonometric Functions*

- Trigonometric Graphs Tutorial (with animated graphs)
- Graphing Trigonometric Functions
- Graphing Trigonometric Functions

*Applications of Trigonometry Resources*

*Preparing for Calculus (MATH 100)*

## Elementary Geometry

Links to resources related to basic Euclidean geometry, which is important to pre-calculus, calculus, physics and chemistry courses, among others.

*Plane Geometry Resources*

*Solid Geometry Resources*

## Finance, Personal Finance, and Financial Calculators

Links to online resources related to personal finance, including mortgage calculators and credit report information.

- FAQs on Credit Reports
- How to Build an Amortization Schedule with MS Excel (YouTube video)
- The Wall Street Journal: The Best Online Tools for Personal Finance
- Bankrate.com--Find up-to-the-minute rates for mortgages, savings accounts, car loans and more
- Yahoo! Personal Finance: Calculators and more

## Elementary Probability and Statistics

Links to resources related to topics studied in courses involving introductory probability or introductory statistics.

- Khan Academy: Counting (Factorials, Combinations, Permutations) Resources
- Khan Academy: Probability
- Basic Probability Tutorial
- Binomial Coefficients and the Binomial Distribution (with tips for R and MS Excel)

*Basic Statistics Resources*

- Khan Academy: Statistics Resources
- Khan Academy: AP Statistics Resources
- Stat Trek: Statistics Tutorial
- NASA's Introduction to Basic Statistics Terms: Mean, Median, Mode, Standard Deviation
- Social Statistics Help

*Sets, Counting, and Venn Diagrams*

- Practice Problems for Sets and Venn Diagrams (with answers)
- An Introduction to Sets, Set Notation and Set Operations
- Venn Diagrams (YouTube video)
- Venn Diagrams
- Interactive Venn Diagrams
- An Introduction to Combinations and Permutations
- Khan Academy: Counting (Factorials, Combinations, Permutations) Resources

*Graphs in Probability and Statistics*

*Z-Scores and the Normal Distributions (The "Bell" Curve)*

- Excel and the Standard Normal Distribution (Word document)
- Z-Scores and Normal Probabilities (requires Java plug-in)
- Z-Scores Explained (YouTube video)
- Normal Distribution (YouTube video)

## Technology

Links to external resources, vendor resources, and instructor-produced documents relating to the use of Texas Instruments calculators, MS Excel, R, SPSS, Stata, Maple 16, and other quantitatively oriented technology used by students at Salem College.*TI® Graphing Calculators*

- Movies and tutorials from Hotmath.com for TI-83/84 Calculators
- TI-83 Handbook
- TI-84 Plus/Silver Edition Handbook
- TI-89 Handbook

*MS® Excel®*

*MS Excel 2010:*

*SPSS ® Tutorials*

- Intro to SPSS (YouTube video)
- SPSS Tutorials from Central Michigan University (with tutorials, videos and data sets)
- SPSS for Windows
- SPSS Tutorial

*R ® Resources*

## Study Skills and Tips for Quantitative Courses

Links to a variety of helpful studying resources for different learning styles.

- Study Tips for Quantitative Courses (Word Document)
- POGIL

## Resources for Standardized Examinations

Links to a variety of standardized examinations required for graduate or professional school or for professional credentialling.

*NC Teacher Licensure Testing*

*Praxis Core Academic Skills for Educators*

- Overview of Praxis Core
- ETS Praxis Core Academic Skills for Educators: Mathematics Study Companion
- Khan Academy videos identified by ETS

*Pearson General Curriculum Test*

*GRE General Test*

- Overview of the Quantitative Reasoning Measure of the GRE General Test
- Quantitative Skills Review
- Free Online Kaplan GRE Practice Test (pre-registration required)

*MCAT*

- Salem College's Pre-Health Advising Moodle Page
- What's on the MCAT?
- Free Online Kaplan MCAT Practice Tests (pre-registration required)
- Free MCAT Practice Tests
- Khan Academy MCAT Practice Questions

*GMAT*

- About the GMAT Exam
- Free Online Kaplan GMAT Practice Tests (pre-registration required)

*PCAT*

- Salem College's Pre-Health Advising Moodle Page
- PCAT Academy YouTube videos about the PCAT
- Free Online Kaplan PCAT Practice Tests (pre-registration required)

*DAT*

- Salem College's Pre-Health Advising Moodle Page
- Quantitative Reasoning Topics Covered on the DAT
- Free Online Kaplan DAT Practice Tests (pre-registration required)

*LSAT*

- The Official LSAT Practice Test
- Free Online Kaplan LSAT Practice Tests (pre-registration required)

*Mathematics Preparation Expected for Graduate Programs*