I use this to help re-introduce timelines to my 7th graders near the beginning of the year. We look at some examples and review the basics of why they are useful. We then progress to a section of the PowerPoint that gives students two different events and challenges them to determine the amount of time that has elapsed between the two events. Normally I distribute dry erase boards to the kids for that so I can figure out if this is super simple or totally foreign to a new group of kids. One of the main features of this particular presentation is that it has several examples of timelines that you can show and talk about so that kids understand that not all timelines are the same.