Precalculus and trigonometry
- advanced functions
- unit-circle trigonometry
- vectors
- limits readiness
Grade 12 / advanced pathways · typical sequence
Choose a goal-directed route through precalculus, statistics, calculus readiness, or practical quantitative reasoning.
Practice inventory
Use a half-turn as the anchor relating 180 degrees and pi radians.
Use reference angles and quadrant signs to identify exact coordinates.
Read vertical scale and center from a periodic function rule or graph.
Use sine squared plus cosine squared equals one and select the sign from the quadrant.
Subtract initial coordinates from terminal coordinates in a fixed order.
Add corresponding components while preserving magnitude-and-direction meaning.
Subtract the mean and divide by the standard deviation with attention to sign.
Connect one, two, and three standard deviations with the empirical-rule proportions.
Divide simulated successes by total trials and distinguish an estimate from a guarantee.
Describe a plausible range for a population parameter without assigning probability to a fixed parameter.
Separate random sampling for generalization from random assignment for treatment comparison.
Match the strength of a conclusion to sampling, assignment, measurement, and possible confounders.
Compute output change over input change and interpret it over an interval.
Track values approaching from both sides without requiring the function value at the point.
Multiply by the exponent and reduce the exponent by one.
Multiply each rate by its interval width and sum the signed contributions.
Distinguish principal, periodic rate, number of periods, and accumulated value.
Multiply each matrix row by the vector column and interpret the new vector.