Mrs. Garcia, a fifth grade social studies teacher, is planning a unit on a the state. A few students already have some knowledge of the state in which they live. In the previous grade, they completed a similar unit although it was some what limited in scope. However, a number of students have immigranted from other countries and lack knowledge of both this state and the U.S. in general. According to Marzano , what can Ms. Jackson do to increase rigor in her unit on the state for all students?
A. Require summarizing and note taking.
B. Have students work independently.
C. Use frequent assessment of students progress.
D. Work with colleagues to discuss and modify practices.