It is true that unless a teacher innovates, making children of young age learn and understand complex subjects such as sciences is almost impossible. But this teacher is someone to be admired because of her cunning way to produce something that she can effectively use to teach her students about human body.
This visual aid that she uses makes it easier for the kids to understand what she is talking about, especially so that she has to deal with the fact she is using some scientific and too technical terms. This is something a noble person is expected to do. This is what you call effort and dedication for your work.