Monks

I read The Magic School Bus in the Time of the Dinosaurs and did Comparing Improper Fractions and Mixed Numbers on Khan Academy

On Karel I got input from the user using readLine.

In chapter 3 of The Story of the World, I read about monks.  When there were no books the monks had to write them.  They made a special kind of paper called parchment.  This is how they made parchment : First they put cow or sheep skins in running water for several days .  Then they soaked it again in a barrel full of water and lime for several days more.  Finally they stretched out the skin, scrape of the hair with a knife and attach it to a frame so it can dry.  When the skin dried, they would take it of the frame and wet it again.  After that they rub it with a rough stone.  When the skin had dried it would have to be cut into rectangles folded over to make pages and stitched together to make booklets.