I student taught algebra 2 in the fall. We started with a brief review of linear functions and absolute value/piecewise functions, and then proceeded to do systems with 3+ variables and linear programming. After this we did matrices and solving systems with matrices. After this, we started quadratics. This year I found out that the school where I will be working has adopted a new textbook for the Common Core. As such, essentially the entire first marking period of what I did in my student teaching has been totally cut out. Instead there is a greater emphasis on trig functions at the end. Chapter 1 of alg 2 is now quadratics. 1.1 is all about vertex form and graphing. Is anyone else experiencing this massive change in the course?