The AMO Error Log: A Four-Cause System That Turns Lost Marks Into Points (2026)
Most AMO mistake notebooks are copying exercises. Here is a four-cause diagnosis, a five-field entry and a spaced review cycle that turns wrong answers into marks. Read
News & guides
AMO news & guides.
Plain-English explainers and preparation tips for the American Mathematics Olympiad — for Grade 2–12 families.
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AMO vs Math Kangaroo: How the Two Papers Differ and Which Suits Your Child (2026)
AMO is run by SIMCC with Southern Illinois University for grades 2-12; Math Kangaroo runs through national organisers. What actually differs, and how to choose. Read
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Reading AMO Questions in English: The Sentence Patterns That Cost Marks (2026)
For bilingual students, many AMO misreads are grammar, not vocabulary. Nine sentence patterns that reverse meaning, a three-pass reading protocol, and a 60-second annotation habit. Read
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Top of the Class but Stuck in AMO? The Non-Routine Gap, Explained (2026)
Strong school-maths students often underperform in AMO. The reason is task type, not ability: five exercise-vs-problem differences, a four-cause diagnostic, and a six-week bridge. Read
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AMO Calculation Fluency: Building Mental-Maths Speed Without Losing Accuracy (Grades 3-8)
Arithmetic fluency is a competition skill, not a talent signal. Five mental-maths moves, estimation as a checking tool, and an accuracy-first drill schedule for AMO Grades 3-8. Read
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The Last 14 Days Before AMO: A Taper Plan That Protects Your Accuracy (2026)
The final fortnight is for sharpening, not learning. A day-by-day AMO taper plan: timed sets, error-log revision, a light last 48 hours, and how to triage a bad practice paper. Read
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AMO Algebra, Patterns and Sequences: How to Find the Rule and Work Backwards (2026)
AMO algebra starts long before the letters do. A grade-band guide to pattern rules, nth terms, sequences and the working-backwards method that turns hard questions into easy ones. Read
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AMO Counting and Probability: Combinatorics, Logic and Arrangement Problems (2026)
Counting questions look easy and quietly cost marks. A grade-band guide to AMO combinatorics, probability and logic problems, and the five tools that solve most of them. Read
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The Units Method for AMO Word Problems: Ratio, Fractions and Percentage Change (Grades 4-8, 2026)
Ratio and percentage word problems decide the middle AMO grades. The units method turns them into one line of bookkeeping, built on the three before-and-after invariants. Read