The teacher's guides prepare teachers to conduct classes around core questions, and they outline investigations that explore those questions. However, the modules do not require the use of any classroom technology. This modules outline several options for assessing students including pre-assessment questions, question sets, case studies, and suggestions for alternate ways of exhibiting student understanding. Each module has a particular story to tell and each activity in a module provides a part of that story. A case study gives students the opportunity to piece together that module's story by applying and integrating the key concepts introduced in module.
Case studies help students synthesize their learning and can be used as an assessment tool.