More convoluted, children are encouraged to explain their answers. No longer is it correct to add 2 and 2 to get 4. Now a child must explain why that is so. If a child decides that the answer is 5 instead of 4 but provides a logical reason for the answer, teachers are encouraged to give the child points.
In my own household, our second-grader attends a private Christian school that is using Common Core. In second grade, our child has already been exposed to time, money, addition, subtraction, measuring, multiplication, division and fractions and is now headed into math involving parentheses. Before one concept is grasped, new concepts are approached. Common Core seeks to build familiarity before competence.
The way the math is taught, parents cannot help their children because they do not understand it. Some schools are offering to reteach parents math skills via Common Core so they can help their children. Common Core supporters have gone so far as to release studies showing that children whose parents do not help them will outperform, over the long term, children whose parents are engaged. The justifications to maintain the madness keep growing.
Teachers are frustrated, too. Many see students who once liked math now shying away from it. The teachers must deal with the frustrated parents, too.
It is not a bad idea to have some uniformity of education in a mobile society. But reinventing several-thousand-year-old basic concepts goes too far. More and more parents are turning to the ballot box to stop the technocrats from doing this. This sleeper issue could impact local elections nationwide.