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Four domains, nineteen skills. Every topic teaches a reusable method first, then puts real questions in front of you.
Solve for x with a method that works every time — and spot the no-solution traps.
Slope, intercepts, and what a line means in a word problem.
Read and build equations of lines from points, tables, and stories.
Substitution, elimination, and counting solutions without solving.
Flip the sign at the right moment and read shaded regions with confidence.
Set up the proportion once, correctly, and let the units check your work.
Percent change, reverse percentages, and the of-vs-more-than trap.
Mean vs median, outliers, and what a distribution's shape tells you.
Lines of best fit, predictions, and reading what the model actually says.
Table-based probability, done as counting — not formulas.
What a sample can and cannot tell you about the population.
Correlation, causation, and which conclusions a study design supports.
The reference sheet has the formulas — this teaches you which one to grab.
Parallel-line angle chasing and similar-triangle setups.
SOH-CAH-TOA, special right triangles, and when to use each.
Arcs, sectors, and circle equations without the mystery.