During Stage 1 of UbD teachers identify the skill and knowledge they expect students to obtain. Also, in this stage the key principles and strategies are determined that they would like students to recognize and expand on such as essential questions in order to assist students with making sense of those ideas. During Stage 2, teachers foster performance tasks requiring the ability to transfer previous learning to new situations as evidence that students understand and are able to apply their knowledge during real-life experiences. In Stage 3, the acquisition of important knowledge and skills, making meaning, and the ability to transfer acquired knowledge during new situations come together to support learning. As a result, since this stage