Because of the way hexagons tessellate (love that word) you can group together key words or ideas and ask students to justify the connections between ideas. They are great for assessing understanding or trying to make sense of connections between ideas. I always keep a bag of hexagons handy for summarising or making sense of complex ideas. I don’t recommend buying a Hexagon cutter - they are quite expensive, the hexagons are quite small, and are fine for cutting out the odd one or two, but if you want to make more, cutters can take a while. I suggest using my hexagon template for making them in bulk. Just cut out the strips then chop off the corners.