 For one reason, teaching to the test misrepresents how much students really have learned about a topic.In an example, students who have learned vocabulary words for a portion of the reading test will score well even though they have not developed a broad vocabulary.In mathematics, students who have been drilled on only test-like questions do not have the opportunity to master a particular skill or concept and often can not correctly answer questions that assess the same skill or concept in a different way.