I could have taught my lesson without using my blocks and just used magnetic letters. I think that these blocks enhance the lesson because it allows students to physically put the words together instead of having the magnet letters sitting next to eachother.
Some challenges that I expect to have with this activity are how tight the blocks are and how tough they are putting them together. I also think that I will have some students that just want to play with the block instead of pay attention to the lesson. I think an additional challenge I might face is students thinking some letters do not fit together and will have to explain that they just need to flip the letters around.
I learned that it takes a lot longer to actually 3D print a large group of things than I anticipated. I also learned that I need to allow more room for the blocks to fit together. I also learned that there might be an easier way to get these letters to fir together and could probably just make a circle or square peg for the blocks to fit into eachother.