the content of algebra I seems similar to the content of a section
That’s probably because the real content, eg, the idea of a variable, is invisible to you now. To someone who already knows it, it can’t be drawn out any longer than a section. There is a phrase “mathematical sophistication” for such content that’s hard to pin down. Also, people may teach it inefficiently, as they don’t remember what the gap is.
That’s probably because the real content, eg, the idea of a variable, is invisible to you now. To someone who already knows it, it can’t be drawn out any longer than a section. There is a phrase “mathematical sophistication” for such content that’s hard to pin down. Also, people may teach it inefficiently, as they don’t remember what the gap is.