>>11663637It is a sad attempt at innovation in a stagnant field.
The only people that seem to benefit are the ones who print the new books on old established subject matter.
>>11663690>Common core is how intelligent people always did math in their headsWho taught those intelligent people how to do that?
Nobody. They figured it out on their own.
Now there are two problems where there were previously none:
1) We are trying to teach dummies the things that only intelligent people were able to do.
2) We are forcing the intelligent people to waste time showing their work for stuff they used to do in their heads.