News & Updates
Cutoff analysis, season roadmaps, exam guidance and competition comparisons for the USA Biology Olympiad in China.
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USABO Registration: What China-Based Families Must Verify Before the Deadline
A practical guide for China-based families navigating USABO registration, focusing on verifying eligibility, understanding the CEE process, and preparing for the spring exam window.
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From IGCSE Biology to USABO: What to Close Before You Sit the Exam
IGCSE Biology gives a broad descriptive foundation but stops short of USABO depth. Hanlin teaching material maps four specific gaps—molecular biochemistry, genetics beyond Mendel, animal behaviour and taxonomy, and mechanism-level physiology—and offers a decision path for whether to bridge now or wait for IB, AP or A-Level.
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USABO or a Research Project? A 2026-27 Plan for Biology Students Who Want Both to Count
USABO and a research project prove different things and peak in different months. How to sequence both across 2026-27, and why each makes the other more convincing.
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Gene Regulation on the USABO: From the lac Operon to Epigenetics
Gene-regulation items on the USABO are logic puzzles. Learn the lac operon truth table, the cis-trans test for mutants, and how eukaryotic control and epigenetics extend it.
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Circulation and Gas Exchange on the USABO: Oxygen Curves, Pressure and Countercurrent Flow
Circulation and gas-exchange items sit in animal anatomy and physiology, the largest area in our own reading of the USABO content. Four ideas carry them: gradients, the oxygen curve, pressure and flow, and countercurrent exchange.
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Sitting the USABO Again: A Diagnostic for the Student Who Missed the Cutoff
Falling short of the advancing score is usually one of four different problems, and each needs a different fix. A diagnostic protocol and a rebuild plan for a second attempt.
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The Nervous System on the USABO: From Membrane Potentials to Synaptic Integration
Nervous-system questions sit inside the largest USABO content band. Here is the quantitative core: equilibrium potentials, driving force, refractory limits and summation.
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Spaced Repetition for the USABO: What to Card, What to Skip, and How to Beat the Recall Load
A working spaced-repetition system for USABO: which facts deserve a card, which formats survive a 60-second question, and how to split a deck across the seven content bands.
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Running a USABO Group at Your School: A Biology Teacher’s Playbook
Selection, contact time and the failure modes that sink school biology-olympiad groups. A stage-by-stage shape for teachers running a USABO group, and what to measure.