The Greek Blockchain community has created a video explaining how Blockchain works through examples from nature that are more familiar and less complex. The same methodology with simple examples from nature or society can be used for the blockchain's complexity of pros and cons. 

Also, the visual elements could be a game changer for the presentation. Some suggested tools that can be used to create visual elements could be: Canva, Pictochart, Venngage, Vimeo.

Examples: A simple explanation on how blockchain works (You Tube video), Blockchain: Massively Simplified (You Tube video).

The educator can prepare case study cards and create a discussion comparing how the problem can be solved with and without blockchain. The students are called to discuss and write in groups the pros and cons of the solution with and without blockchain. In the end, the educator will present the ones that were not mentioned by the groups