While students are working, the teacher logs in to the Teacher Workspace where she can review and comment on any team's work. The project comment feature supports open-ended communication between the teacher and students. Teachers can use this feature to prompt further thinking by posing a question, or students can use it to document a conclusion about their work.
When all students have ranked the invention list and explained their reasoning, the teacher leads a closing discussion about the results. From the Teacher Workspace, she displays the comparison of a few different teams and the comparison of one team to the class average.
She asks teams about correlation—did any team find another that was a close match? Did they find a correlation close to +1? Or, did they find any team that was very opposite with little correlation, close to -1?
The teacher ends the day's activity by having each team use the Show Report feature to print their ranking and comments. She will have each team use this report to prepare for small-group discussions about what is progress and improvement in the course of human history. Later, these reports will be collected for each student's assessment portfolio.