Math 103: Precalculus
69% developed About this course
Functions
Functions: Identification, Notation & Practice Problems
Start Course
All Videos in Functions
- 1. Functions: Identification, Notation & Practice Problems
- 2. Transformations: How to Shift Graphs on a Plane
- 3. What Is Domain and Range in a Function?
- 4. How to Add, Subtract, Multiply and Divide Functions
- 5. How to Compose Functions
- 6. Inverse Functions
- 7. Applying Function Operations Practice Problems
Exponentials and Logarithms
What Is an Exponential Function?
All Videos in Exponentials and Logarithms
Inequalities
What is an Inequality?
All Videos in Inequalities
- 1. What is an Inequality?
- 2. How to Graph 1- and 2-Variable Inequalities
- 3. Set Notation, Compound Inequalities, and Systems of Inequalities
- 4. Graphing Inequalities: Practice Problems
- 5. How to Solve and Graph an Absolute Value Inequality
- 6. Solving and Graphing Absolute Value Inequalities: Practice Problems
Foundations and Linear Equations
What are the Different Types of Numbers?
All Videos in Foundations and Linear Equations
- 1. What are the Different Types of Numbers?
- 2. What Are the Different Parts of a Graph?
- 3. What is a Linear Equation?
- 4. Linear Equations: Intercepts, Standard Form and Graphing
- 5. Abstract Algebraic Examples and Going from a Graph to a Rule
- 6. Graphing Undefined Slope, Zero Slope and More
- 7. How to Write a Linear Equation
- 8. What is a System of Equations?
- 9. How Do I Use a System of Equations?
Factoring with FOIL, Graphing Parabolas and Solving Quadratics
What is a Parabola?
All Videos in Factoring with FOIL, Graphing Parabolas and Solving Quadratics
- 1. What is a Parabola?
- 2. Parabolas in Standard, Intercept, and Vertex Form
- 3. Multiplying Binomials Using FOIL and the Area Method
- 4. Multiplying Binomials Using FOIL & the Area Method: Practice Problems
- 5. How to Factor Quadratic Equations: FOIL in Reverse
- 6. Factoring Quadratic Equations: Polynomial Problems with a Non-1 Leading Coefficient
- 7. How to Complete the Square
- 8. Completing the Square Practice Problems
- 9. How to Solve a Quadratic Equation by Factoring
- 10. How to Use the Quadratic Formula to Solve a Quadratic Equation
- 11. How to Solve Quadratics That Are Not in Standard Form
Exponents and Polynomials
What Are the Five Main Exponent Properties?
All Videos in Exponents and Polynomials
- 1. What Are the Five Main Exponent Properties?
- 2. How to Define a Zero and Negative Exponent
- 3. How to Simplify Expressions with Exponents
- 4. Rational Exponents
- 5. Simplifying Expressions with Rational Exponents
- 6. How to Graph Cubics, Quartics, Quintics and Beyond
- 7. How to Add, Subtract and Multiply Polynomials
- 8. How to Divide Polynomials with Long Division
- 9. How to Use Synthetic Division to Divide Polynomials
- 10. Dividing Polynomials with Long and Synthetic Division: Practice Problems
How to Solve Visualizing Geometry Problems
Understanding Radians and Degrees on a Scientific Calculator
Unit Circle: Memorizing the First Quadrant
About This Course
Math 103 course topics are broken down into modular, 10 minute video lessons that you can watch as many times as you need to in order to master a particular concept. Instructors Luke Winspur and Dr. Erin Lennon are experts in teaching all levels of math and use real-world examples to bring concepts like functions and the Pythagorean theorem to life.
Use our interactive quizzes to test your knowledge and see how much you've learned and where you might need to do some review. These video lessons are yours to use however you want.
Here's what students and instructors have said about our math video lessons:
I have used the math video lessons with my students and the results have been great, they ranked very well. I personally used some of the calculus lessons with high school teachers and all of them plan to use it for their precalculus and calculus classes in the school curriculum. - Dr. Alfred Vaquiax-Alvarado, instructor
The visual aids make is interesting, and it also helps using the real life comparisons. - Lynda, independent online learner
This made sense from something I couldn't understand for years! - college student
How to Earn Real College Credit That You Can Transfer
Math 103: Precalculus prepares you to earn real college credit by taking the College Board's Precalculus College Level Examination Program (CLEP) exam. For more details about earning CLEP credit, click here.
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Education Portal Instructors
Education Portal's 53 instructors bring a diverse array of experience and expertise to each course. From teaching philosophy in Athens, Greece, to exploring the mystery of genetics, each instructor is uniquely qualified to bring students the best online learning experience possible. Meet them now!
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Jessica Bayliss, M.S.
Jessica is our Director of Education and leads the development of Education Portal's free courses. She has 10 years of experience in education and online teaching. Her work with students of all age levels drives
her belief in the power of free online resources to make higher education more affordable and efficient. Jessica's favorite part of the day is
reading feedback from Education Portal's students. She has a bachelor's degree from the University of Illinois and a master's degree in
instructional technology from Texas A&M - Kingsville.
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Greg Chin, Ph.D.
Greg has taught genetics, molecular biology, and general biology to
high school, collegiate, and post-graduate students at Stanford University, the University of California, Los Angeles, Santa Clara
University and the Dolan DNA Learning Center at Cold Spring Harbor Laboratory. He has also taught science workshops for the general
public and led biology teacher enrichment workshops throughout the U.S. He received a B.S. in Genetics from the University of
California, Davis, and a Ph.D. from Stanford University. Find out how your genes work in Greg's introduction to genetics video lesson!
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Max Pfingsten, M.Ed.
Max has taught classics, history and philosophy
at a variety of levels at the Dikemes Academy in Athens, the Boulder Valley School District, University of Colorado at Boulder and
the Illinois Mathematics and Science Academy (IMSA). His work is noteworthy for its synthesis of technology and simulation with more
traditional teaching approaches. He received a B.A. in Classics from Depauw University, a M.A. in Classics from University of
Colorado at Boulder, and a M.Ed. from Jones International University. See Socrates come to life in Max's lesson on the life, death,
and philosophy of the great Socrates.
- Meet all 53 of our instructors
Contact Information
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The videos were a great study tool. I aced the CLEP exam and earned 3 college credits!
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