@mjranchmomfinds: I'm sharing all of my standard based science lessons that I am doing with my kids from home. i used to be a science teacher held a certificate in two different states had graduate level. Training in education in teaching Science and Technology.... I do agree that there should be some standard measurement and concept.... The problem that I have with it is a lot of those standards are embedded with political bias... But as americans, we should have the freedom knowledge and ability to decipher how to filter and share that with our own children.