We're Like Having a Personal Math & Stat Prof
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The Featured Problem Series
Our Featured Problem Series will return in September 2026. In the meantime, check out our archive for the problems and solutions from our Summer 2025 series and Fall 2025 series.
The Featured Problem Series Archive
Fall 2025
Week 1: Sophomore-Level Real Analysis
Week 2: Sophomore-Level Discrete Math
Week 3: Junior/Senior-Level Probability
Week 4: Junior/Senior-Level Real Analysis
Week 5: Junior/Senior-Level Real Analysis
Week 6: Junior/Senior-Level Abstract Algebra
Week 7: Junior/Senior-Level Real Analysis
Week 8: Graduate-Level Applied Linear Algebra
Week 9 : Sophomore-Level Combinatorics
Week 10 : Junior/Senior-Level Stochastic Modeling
Summer 2025
Week 1: Calculus I
Week 2: Junior/Senior-Level Probability
Week 3: Calculus II
Week 4: Junior/Senior-Level Real Analysis
Week 5: Sophomore-Level Combinatorics
Week 6: Junior/Senior-Level Real Analysis
Week 7: Sophomore-Level Discrete Math
Week 8: Sophomore-Level Real Analysis
Week 9: Junior/Senior-Level Linear Algebra
Week 10: Junior/Senior-Level Ordinary Differential Equations