Science is the subject which is taught at many levels of educational. It affects all the people in many different ways. It is from simple electronic devices to big and complex machines that are needed to make life easy. It also includes the food and the weather information from outside. Science involves watching, learning, managing and creating all type of materials and equipments. Learning involves, practically to help learners and understanding the concepts better. Therefore, learning institutes that combine textbook or classroom teaching and laboratory practices churn out graduates who understand science better. Gary Trautloff discuss on it a lot.