8th Grade Math
About this free 8th Grade Math course
8th Grade Math is a free collection of short video lessons on the skills students need in eighth grade and for Algebra 1 readiness. The lessons zero in on topics that often trip students up, such as exponent rules, repeating decimals, and finding slope, and explain them clearly and quickly so you can get back to solving real-world problems.
Because each lesson is so focused, the series works well for a quick review the night before a test. It also helps as a targeted fix when one specific skill isn't clicking in class.
Created by STEM for Others student volunteers, the videos are designed to be watched in a few minutes and then practiced right away.
Who this course is for
These lessons are for eighth graders, advanced seventh graders, and high school students who want a refresher before Algebra 1. You should be comfortable with 7th grade topics like negative numbers, fractions, and solving equations.
Course outline
- Exponent rules. Powers of products and the faster way to divide exponents with the same base.
- Repeating decimals. Converting repeating decimals into fractions, a key eighth grade number system skill.
- Slope from two points. The simple way to find the slope of a line through any two points.
- Slope from standard form. Finding slope directly from an equation written in standard form, Ax + By = C.
What you'll learn
- Apply exponent rules, including powers of products and quotients
- Convert repeating decimals to fractions
- Find the slope of a line from two points
- Find slope from a standard-form equation without graphing
How long it takes
Individual videos last only a minute or two, but set aside about 10 hours in total to watch the lessons and practice each skill. A lesson or two a day works well.
Frequently asked questions about 8th Grade Math
Is 8th Grade Math really free?
Yes. 8th Grade Math is completely free, with no fees, subscriptions, or account required. STEM for Others is a 501(c)(3) nonprofit, and every course in our curriculum library is free for students, families, and teachers.
Is 8th grade math the same as Algebra 1?
Not quite. Eighth grade math covers exponents, linear equations, and functions that prepare you for Algebra 1. Once you're comfortable with these lessons, move on to Intro to Algebra.
How do I start the course?
Start with the video playlist on this page. Watch a lesson, pause to work the example yourself, and then try a few similar problems. You can also explore more interactive lessons on STEMplore.
Do I get a certificate?
The self-paced 8th Grade Math materials don't include an official certificate. If you're taking the course through a STEM for Others chapter program, ask your chapter leader about recognizing your completion.
Can teachers and clubs use this curriculum?
Yes. Teachers, homeschool families, libraries, and after-school clubs are welcome to use the 8th Grade Math materials with their students at no cost. STEM for Others volunteers also teach our curriculum in partner schools and libraries. You can find a chapter near you or start one at your school.
