Practice by skill, not by guesswork
TSI Practice Prep uses original practice questions aligned to the skills students are expected to practice. Timed mode protects simulation integrity; untimed mode adds explanations, notes, highlighting and targeted review.
Quantitative ReasoningRatios, proportions, percentages and quantitative relationships.Algebraic ReasoningExpressions, equations, functions and algebraic models.Geometric & Spatial ReasoningMeasurement, geometry and spatial relationships.Probabilistic & Statistical ReasoningData displays, probability and statistical reasoning.Reading-Focused ELARMain ideas, inference, synthesis and text analysis.Writing-Focused ELARRevision, sentence structure, usage and conventions.