Course 00 · Foundations

Free Review Course

The essential math foundation — completely free.

Overview

What this course covers.

A structured refresher covering the most important pre-algebra and early algebra concepts. No account required, no commitment. Perfect for students who want to fill gaps before starting a new course or need a quick review before an exam.

PrerequisitesNone — this is the starting point.

Curriculum

Topics & units.

Unit 1

Number Sense

›Order of operations (PEMDAS)
›Fractions, decimals, percentages
›Negative numbers & absolute value
›Factors, multiples, prime factorization

Unit 2

Pre-Algebra

›Evaluating expressions
›Combining like terms
›Distributive property
›Solving one- and two-step equations

Unit 3

Intro Algebra

›Linear equations in one variable
›Inequalities & number lines
›Graphing on the coordinate plane
›Slope and y-intercept (preview)

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