text: Teachers have already scheduled everything in the beginning since they need students to learn to continue throughout the year. Teachers have done this for years and know critical parts of the units to be mainly focusing on, so that students over the summer can learn them. When taking a test, teachers prefer adding a cumulative section to re-test students knowledge on previous units. Using important questions and/or problems for students to relearn the material to continue memorizing it. This continues students previous knowledge of learning. Just how in the summer they could use critical parts of each unit to continue students learning over the break. If students attempted to do this, they would use any question and/or problem they seem fit to be answered. But, not realize if it is important enough to use for effectively keeping the student learning.