Back to the drawing board

I developed some new questions for Monday's test that I hoped would require students to demonstrate their knowledge rather than just parrot-repeat definitions at me. Natalie was (ahem) kind enough to graph the frequency of wrong answers for each question.



So, if 47% of students (14 out of 30) miss a question, does it mean that something is seriously wrong with the question or that something is seriously wrong with the teaching? Can't be the kiddos, or the percentage wouldn't be that high. Sigh.