First of all welcome to the forum and also I hope that your teaching module about cryptocurrency will be approve by your superior since there are some content in crypto history that involves illegal transaction especially in its early stage which bitcoin are used as currency in the underground market for buying illegal stuff like guns, drugs and other illegal stuff.

I'm sure that you will dig deeper since your topic will be economic history and finding that stuff will be inevitable. But nowadays. Cryptocurrency is on the right track and already approaching to mass adoption which is quite good for economics lesson for the younger generation.

Best of luck here! I will be happy to assist you if ever you have questions here. Just PM me.