The reasons for my question are complicated but basically I need information about different subjects, mostly languages (Eng, Spa, Fre), math, and sciences, as taught in different grades in elementary/high schools.
Now I do understand that the material covered by different schools or teachers is not the same, nor is it taught in the same way. But is it true that there are some basics that students are expected to have learned, no matter where they go to school? For example, is there the expectation that students who are starting Grade 8 physics should have learned certain physics principles, even if they come from another US state? Or someone who just finished Grade 12 chemistry should know certain things about acid/base chemistry?
Alternatively, are there certain books one could purchase that are commonly used in schools when teaching these subjects?
Thank you in advance.