SPSAT by Papi

rising contributor

Ethan Wu

Probability Tutor

Focuses on probability, counting, and two-way table reasoning for SAT Math.

Blog posts by Ethan Wu

SAT Writing

SAT Rhetorical Goal Questions Guide

Study SAT rhetorical goal questions with examples, common traps, review steps, and targeted SAT practice so each session has a clear next step.

SAT Math

SAT Mean, Median, and Mode Guide

Use this SAT mean median mode guide to review examples, avoid traps, and connect every missed question to focused SAT practice. Build a clearer test-day plan.

SAT Math

Half-life and repeated decay SAT Guide

Study SAT half life exponential decay with examples, common traps, review steps, and targeted SAT practice so each session has a clear next step.

SAT Reading

Main claim versus detail SAT Guide

Study SAT main claim versus detail with examples, common traps, review steps, and targeted SAT practice so each session has a clear next step.

Practice pages by Ethan Wu

Math / Foundational

Histograms SAT Practice Questions

Practice histograms for the Digital SAT with original examples, explanations, strategy, FAQs, and links to related SAT question practice.