The students will describe the graphic assigned to that student to the other students.
How can you make a diagram?
There are countless ways to make a diagram but by far the easiest way is to use SmartArt which is built into Microsoft Word and PowerPoint.
SmartArt is easily inserted into a Word or PowerPoint document but if you want to post a diagram online then you need to convert the SmartArt document into a graphic file format. A very easy way to convert your Word document into a jpeg is to first save your Word document as a pdf file and then convert the file at an online site such as:
You can then edit the jpeg with any graphic software but I highly recommend Paint.NET. Pain.NET can be downloaded for free and is easy to use but of course does not have the power of a commercial product like PhotoShop.