Professor Leonard Courses

Prealgebra

Build foundational math skills through whole numbers, integers, fractions, decimals, ratios, percentages, equations, and introductory polynomials.

• YouTube
• 1 day 15 hours
• Self-Paced
• Free Video

Prealgebra Playlist

Lecture-based prealgebra instruction covering number lines, integers, equations, fractions, ratios, rates, and polynomial operations.

• YouTube
• 1 day 15 hours
• Self-Paced
• Free Video

Intermediate Algebra

A lecture series covering intermediate algebra, from equations, inequalities, and graphing to radicals, quadratics, exponential and logarithmic equations, and conic sections.

• YouTube
• 1 day 18 hours
• Self-Paced
• Free Video

Intermediate Algebra Playlist 2

Intermediate algebra lectures develop equation-solving across rational, radical, quadratic, exponential, logarithmic, and conic-section topics.

• YouTube
• 4 hours 30 minutes
• Self-Paced
• Free Video

Statistics Playlist

A comprehensive statistics lecture series covering probability, distributions, confidence intervals, and one-sample hypothesis testing.

• YouTube
• 1 day 8 hours
• Self-Paced
• Free Video

Calculus 1

A full Calculus 1 lecture series covering limits, derivatives, integrals, and applications, with review of algebra and trigonometric concepts.

• YouTube
• 1 day 15 hours
• Self-Paced
• Free Video

Calculus 1

A six-hour Calculus 1 lecture series covering limits, derivatives, integrals, and their applications.

• YouTube
• 6 hours
• Self-Paced
• Free Video

Comprehensive Math Video Collection - Beginning Algebra Through Linear Algebra and Differential Equations

Master comprehensive math concepts from beginning algebra through differential equations with concise, focused video lessons covering equations, graphing, systems, and polynomials.

• YouTube
• 1 day 6 hours 49 minutes
• Self-Paced
• Free Video

Prealgebra Lecture - Introductions to Decimal Numbers

An introduction to decimal numbers through place value, ordering, comparison, rounding, and negative numbers.

• YouTube
• 48 minutes
• Self-Paced
• Free Video

Prealgebra Lecture - An Introduction to Variables and Algebraic Expressions

Introduces variables and algebraic expressions, including evaluating expressions, equations, quotients, and basic word problems.

• YouTube
• 1 hour 2 minutes
• Self-Paced
• Free Video

Intermediate Algebra Lecture - Studying Common and Natural Logarithms

Study common and natural logarithms, including the Richter scale, Euler’s number, logarithm laws, and change-of-base techniques.

• YouTube
• 51 minutes
• Self-Paced
• Free Video

Intermediate Algebra Lecture - An Introduction to Radicals and Radical Functions

An introduction to simplifying and evaluating square roots, cube roots, and general radical expressions.

• YouTube
• 1 hour 14 minutes
• Self-Paced
• Free Video

Intermediate Algebra Lecture - An Introduction to Non-Linear Functions

An introduction to non-linear functions through function notation and graph transformations such as reflections, absolute value, and vertical shifts.

• YouTube
• 46 minutes
• Self-Paced
• Free Video

Properties of Exponents in Polynomials - Multiplying Polynomials

Learn how exponent properties apply to multiplying polynomials, including product, power, and power-of-a-product rules.

• YouTube
• 56 minutes
• Self-Paced
• Free Video

Prealgebra Lecture - Adding and Subtracting Polynomials

A prealgebra lecture on adding and subtracting polynomials by combining like terms and distributing negative signs.

• YouTube
• 42 minutes
• Self-Paced
• Free Video