Nasa Before PowerPoint

This is my favorite tweet of the week from History in Pictures that I am following on Twitter. I am not a big technology fan (although I must admit it is growing on me a bit). Not sure if any of the students I will teach in the future will even know what a chalkboard and chalk is and this would be fun to show them. I can remember being excited to get my turn to clean the chalkboard with water and a sponge when I was in school. This photo is entitled "Nasa Before PowerPoint"