Purpose explains what the student will know or be able to do following this activity. Duration estimates the time needed for the lesson. The actual time required will depend on the grade level and the skill level of the students in the class. 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.