Math Help
Don't let math gaps hold you back from your goals. Targeted, topic-focused videos covering the math concepts that trip up the most students on high-stakes tests and in college algebra — with a 90%+ pass rate when learners work through the full series.
Dr. Lee V. Stiff & Marvin Pittman
These math lessons were created in honor of two nationally recognized scholars and advocates for equity in mathematics education — whose careers shaped how a generation of teachers and researchers think about who gets to be good at math.
Dr. Lee V. Stiff
Past President, National Council of Teachers of Mathematics · 2019 NCTM Lifetime Achievement Award · Co-Founder, Edstar Analytics
Marvin Pittman
Nationally recognized scholar and advocate for equity in mathematics education
Who these videos are for
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College algebra students
Topics are sequenced to reinforce the concepts that trip up the most students in first-year college math.
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ACT & SAT prep
Targeted help on the algebra, geometry, and problem-solving topics most commonly tested.
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ASVAB, NCLEX, PRAXIS
Post-secondary high-stakes math tests — we cover what shows up most often.
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Career changers
Refresh the math skills you need for a new career path, without sitting through a full remedial course.
90%+
Pass rate
The topics covered in these videos were identified through a multi-year study of college-algebra students and students being tutored for high-stakes tests. When students worked through the full sequence with practice, the pass rate exceeded 90% — and several students went on to succeed in majors that required multiple college-level math courses.
How to use this series
Watch in order
The lessons build on each other. Even if you think you already know a topic, watch anyway — you may find a perspective that makes later concepts click.
Practice alongside
If you're studying for a high-stakes test, take practice tests as you go. Use each video to shore up the topic areas you miss.
Subscribe for updates
New videos are added based on what learners are asking for. Subscribing on YouTube means you'll be notified as the library grows.
Video library
Click any topic to watch on YouTube. The practice column opens a pre-filled search on Khan Academy (or another free source) for the matching topic — Khan frequently reorganizes their exercises, so a search keeps you pointed at whatever they currently offer instead of a dead link.
| # | Lesson | Practice | Watch |
|---|---|---|---|
| 1 | Basics of Negative Numbers Explains adding and subtracting with negative numbers in a foundational way. | Watch → | |
| 2 | Multiplication of Fractions Reviews multiplying fractions as groundwork for later concepts. | Watch → | |
| 3 | Fixing Foundational Confusion Addresses foundational misconceptions and offers a clearer approach to order of operations. | Watch → | |
| 4 | Using Properties to Make Things Easier Reviews algebraic properties and how to apply them when solving equations. | Watch → | |
| 5 | Example: Order of Operations Walks through simplifying an expression using order of operations, with an eye on common errors. | Watch → | |
| 6 | Factors and Multiples Explains finding factors and multiples of numbers. | Watch → | |
| 7 | Exponents Reviews working with exponents and explains the underlying meaning. | Watch → | |
| 8 | Example Problems From High-Stakes Tests Works through example problems from the McGraw-Hill ACT practice tests. | Watch → | |
| 9 | Pythagorean Theorem Reviews the Pythagorean Theorem and its application. | Watch → | |
| 10 | Percents Shows how percent relates to fractions and decimals — equivalent fractions with denominator 100. | Watch → | |
| 11 | Review of Percents to Prepare for Word Problems Reviews concepts that make percent word problems tractable. | Watch → | |
| 12 | Percent Word Problems Walks through thinking through and solving percent word problems. | Watch → | |
| 13 | Number Sense Reviews underlying assumptions unique to specific number types. | — | Watch → |
| 14 | Solving Equations Reviews solving linear equations with worked examples. | — | Watch → |
| 15 | Examples Worked 1 Walks through a percent word problem from the ETS Praxis Practice Math test. | Watch → | |
| 16 | Examples Worked 2 Works through a Praxis math question that requires reasoning and basic math concepts. | Watch → | |
| 17 | Examples Worked 3 Works through a Praxis question that can be solved quickly by pattern recognition. | Watch → |
Tell us what's tripping you up. Many videos in this series started as a real question from a student or tutor who emailed us — and we add new topics based on what the field is asking for.
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