Learn Ordinary

Differential Equations:

Free Course

with Videos

and Guided Notes

👇 Scroll down to access all the videos and guided notes for this course.

Welcome to our Ordinary Differential Equations Videos and Guided Notes page! This free resource is designed to help you learn and review the core concepts and solution methods taught in a standard college Differential Equations course. Whether you’re studying ordinary differential equations for the first time or preparing for an exam, our step-by-step video lessons and free downloadable guided notes PDFs will help you build confidence and mastery.

What’s Included in This Free Differential Equations Course?

Video Lessons
Our videos cover the essential topics in ordinary differential equations, following the structure of a typical undergraduate course. Each lesson includes clear explanations and worked-out examples so you can strengthen your understanding of concepts such as:

  • Classification of differential equations and basic terminology

  • First-order differential equations, including separable, linear, exact, homogeneous, and Bernoulli equations

  • Second-order linear differential equations, including reduction of order and equations with constant coefficients

  • Nonhomogeneous differential equations solved using the method of undetermined coefficients and variation of parameters

  • Modeling with differential equations, including spring–mass systems and electrical circuits

  • Series solutions of second-order linear equations, including power series methods and Bessel’s equation

  • The Laplace transform and its use in solving initial value problems

  • Systems of first-order linear differential equations

  • Numerical methods such as Euler methods, Runge–Kutta methods, and the finite difference method

Free Guided Notes for Ordinary Differential Equations
Each video comes with ordinary differential equations guided notes PDFs that you can download and complete as you watch. These notes help you:

  • Reinforce understanding by filling in key formulas and steps

  • Improve retention through active participation

  • Stay organized with a structured resource for quizzes, exams, and future reference

How to Learn Ordinary Differential Equations Effectively

  1. Watch the videos for each section to follow along with step-by-step lessons.

  2. Download the guided notes PDFs to complete while watching.

  3. Work through examples in the notes to practice problem-solving.

  4. Review your completed notes to prepare for exams or to strengthen your foundation for future courses.

Start Learning Ordinary Differential Equations Now!

With our free or=dinary differential equations course, video lessons, and guided notes, you’ll develop a strong understanding of the most commonly used solution techniques in a Differential Equations course. These resources are designed to help you succeed in differential equations and in the STEM courses that rely on it.

Get started today with clear lessons and guided notes PDFs that make ordinary differential equations easy to learn.

Videos and Notes

Chapter 1: Introduction

© Understand The Math LLC. All Rights Reserved. These materials are freely provided for non-commercial educational use. Redistribution is permitted with proper attribution to UnderstandTheMath.com.

Classification of Differential Equations| Type, Order, and Linearity Explained

In this video, we classify differential equations by type, order, and linearity—a foundational skill in any differential equations course.

YouTube Video Guided Notes

Chapter 2: First-Order Differential Equations

© Understand The Math LLC. All Rights Reserved. These materials are freely provided for non-commercial educational use. Redistribution is permitted with proper attribution to UnderstandTheMath.com.

1.  Separable Equations

In this video, we introduce separable differential equations and show how to solve them using the method of separation of variables—one of the most important techniques in a first course on differential equations.

YouTube Video Guided Notes

2.  Linear Equations

In this video, we introduce first-order linear differential equations and show how to solve them using the integrating factor method—a core technique in any differential equations course.

YouTube Video Guided Notes

New videos will be posted every Monday and Thursday! Stay tuned!