I am not a teacher, but as a mom who has worked with my own kids, I have seen what works and what doesn't. This doesn't work at all. Who teaches something by testing you first. Who teaches something by asking them complicated word problems with no examples and no solutions. They don't know if they are doing it right or not. Then comes the Test. By the time of the assessment which is 80% of the grade, they are just confused, scared, and worried. If that was your objective, then you have succeeded. Who is designing this curriculum? Why not try to remember what it was like to be in 4th grade and start there instead of starting from a PhD level and trying to teach down to the kids like they are inferior. These children are smart and capable of learning if you will take the time to LEARN how to teach.