Grade Level indicates the target grade levels for this unit. Suggested Subjects are the scholastic subject areas to which the lesson is related. Background contains basic facts and context information for the educator's use. Preparation provides a list of materials and steps the educator should complete prior to class. Wherever appropriate, this section includes questions the educator should ask or anticipate from the students, student worksheets, and answer keys.
Most units provide questions to stimulate student discussion, but few have a single, right answer.
These questions are intended to draw on the students abilities to identify. Educators can ask students to describe how they arrived at a particular answer and encourage them to compare their answers and approaches with those used by other students to answer the same question. Where there may be several answers to the same question, challenge students to explore why answers are different and how to determine which, if any, are correct. This approach helps students develop critical thinking skills in a stimulating, noncompetitive environment.