Here is a 12min tutorial on basics of latest foldscope usage. Once you have assembled the foldscope correctly (see: https://www.foldscope.com/foldscope-instructions/), you can begin to make slides, explore and enjoy the microscopic world.
Lots of latest tricks and tips hidden in this latest video:
As you can see; so much can be done with the basic foldscope. Just as a reminder, this is data collected with the “basic” classroom unit. Often students/people ask what an be done with the basic units – and the answer is almost everything. See some pictures below.