Upper graders become "shipwreck detectives" by studying the debris field from a shipwreck in the Aegean Sea which took place in the 700s.  A website is accessed that gives specific information about the debris field, and pairs of students fill out a worksheet embedded in the plan that categorizes the majority of debris found in quadrants that are delineated in the worksheet. Learners see how studying wrecks like this one can lead to the acquisition of quite a bit of knowledge about a culture.