There are 4 parts to this review lesson.

First, use the powerpoint to practice using logic. Walk the students through the presentation to get them used to finding information in the hints. It also shows where to place the Xs and Os.

Second, get them to use these skills to work out the first challenge. The empty box is for the students to write out some sentences based on the grid they filled out. (e.g. OO is the fastest; XX is the youngest; OO is slower than XX; etc.). Have them work in groups so that they can talk about it together.

Third, check their answers. You can do it group-by-group, or you can do it all together. When this is done, you can drop the Whodunnit Among Us puzzle on them. You’ll probably have to go over the names of the tasks and rooms. This is also a group activity. I intended this puzzle to be done without the use of the map, since that’s what part 4 is. I also recommend working through the puzzle yourself so that you know what kind of hints to drop should the need arise.

Fourth, if a group gets all the information correct, show them the map. Ask them who is where, and then ask them whodunnit (and if you want, you can get them to explain why).

Prizes for every group that finishes are probably a good idea, since it’s pretty hard. Maybe something extra for the first group to complete the thing.

Depending on how long the explanation takes, it might be a tough task to finish by the end of class. I would say that they can bring it to me at any time to get it checked.