I agree here w/ Mia. If you know the child needs to know all the continents by the end of 2nd grade, that's something that will take the child 10min and a fun world puzzle to know! Why not! Social studies and science are difficult b/c it's factual info that you either know or don't know. Now if it's reading social studies content or scientific content and drawing conclusions, that's different b/c the required information is presented in the passage. I would take a look at What Your Xth grader needs to know for social studies and science content. It's really very basic.
