As exam time nears, teachers become concerned about exactly what to give credit for and what not to give credit for when grading their students’ work on past AP free-response questions.

Former Chief Reader Stephen Davis recently posted a note on the grading of a fictitious exam question showing how 2 points might have been awarded on a L’Hospital’s Rule question. The note is interesting because it shows the details that exam leaders consider when deciding what to accept and what not; it shows the details that readers must keep in mind while grading. This type of detail with examples is given to the readers in writing for *each* part of *every* question. With hundreds of thousands of exams each year, this level of detail is necessary for fairness and consistency in scoring.

**BUT** as teachers preparing your students for the exam you really don’t need to be concerned about all these fine points as readers do. Encourage your students to answer the question correctly and show the required work using correct notation. This is shown on the scoring standard for each question (on Stephen’s sample it is in the ruled area directly below the question). Don’t worry about the fine points – what if I say this, instead of that. If your students try to answer and show their work but miss or overlook something, the readers will do their best to follow the student’s work and give her or him the points they have earned.

Why show your students the minimum they can get away with? How does that help them? Do your students a favor: *score the review problems more stringently than the readers*. If their answer is not quite right, take off some credit and help them learn how to do better. It will help them in the long run.

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