Mr. Mills wrote general goals. He used the verb "understand". Your goals are not specific. He needs to use verbs that express behaviors that students will perform. Students need to show how well they can achieve their goals.
Definition:
U-shaped valleys form through glacial erosion. Glaciation develops in established v-shaped river valleys where the ice erodes the surrounding rocks to create a “U” shaped valley with a flat bottom and steep sides. Glacier movement is driven by gravity. When the glacier melts, the landscape is transformed and the U-shaped valleys are clearly visible.
During the 1930s, the combination of the Great Depression and the memory of tragic losses in World War I contributed to pushing American public opinion and policy toward isolationism.