There are several critics on the issue of students taking snacks or food to class. Some teachers say that it will cause too much distraction, reducing student's ability to learn as they will share snacks and will be looking at what other students brought to class.
However, consider the fact that middle school learners are growing at an incredible rate. Their body needs energy and their minds get tired if they spend too much time withouth eating. Food is like fuel to the brain. Allowing snacks will actually increase sutdnet's ability to learn as it will take away the distraction of hunger.
The process of studying your subject from many angles is called cubing.
The correct answer should be locate basic information.
When you are doing the preliminary research, you are just reading through a bunch of sources and information that you may or may not use while writing. You still aren't deciding which exact sources you are actually going to use, but rather just trying to find them and later on make that decision during another stage of writing.