Whiteboards are great learning tools in a science classroom. With these instructions, you can make eight 24-in x 24-in whiteboards for less than $2.00 each! Instructions for simple whiteboard stands are included.
Josh Kenney's blog
Chemistry is difficult to learn. Walk into any chemistry classroom, and you’ll be soon confronted with many abstract concepts. Abstract ideas have no physical form, and as a result, they are difficult to understand.
Developing PCK requires a certain level of subject matter knowledge, and teachers have a different understanding of subject matter than a person who specializes in that same field. A chemistry teacher and a ‘practicing’ chemist both have subject matter knowledge in chemistry; however, the knowledge is applied differently.
Many researchers have attempted to characterize the knowledge of an expert teacher, and it's complex, to say the least.
I think that most people can recall someone whom we considered to be a great teacher. The kind of person who inspired us and motivated us to learn. As I started my career, I remember wondering what kind of teacher my students thought I was.