Math: elementary to high school · Chinese: Grades 1–6 · English: Grade 3 to high school · Physics: middle to high school
Find the step that was never really learned
Questions adapt along prerequisite links. Math traces from elementary school to high school, Chinese covers the Tongbian (national unified) edition for Grades 1–6, English covers Grade 3 to high school, and Physics covers middle school Grades 8–9 plus high school Compulsory and Selective Compulsory. Starting from the topic you pick, it works backward to locate the root cause of weak spots and gives you a path in learning order.
Three Steps
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1
Pick a topic
Math runs from Grade 1 to high school Compulsory and Selective Compulsory, Chinese from Grade 1 to Grade 6, English from Grade 3 to high school, and Physics from Grade 8 Vol. 1 to Selective Compulsory Book 3. Search, or browse by volume and chapter, to find what you want to check.
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2
Adaptive questions
It asks about the target topic first. After a wrong answer it gives another question at the same level or easier, and only traces back along prerequisites if that is also missed.
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3
Find root causes and a learning path
It flags root-cause weak spots and shaky topics, and lists a suggested review order from lower to higher grade.
What's in the Graph
These numbers are counted when the page loads, from the current subject's topics, prerequisite links, question bank and curriculum standards. Math is the default.