“If I can’t exercise for at least an hour, it’s not even worth getting started. I’ll always be out of shape.” “Since I already ate too much for dinner, I may as well just have 2 slices of cake for dessert anyway – I’ll never lose weight.” “I can’t find...
It’s called the 2 sigma problem Benjamin Bloom was an educational psychologist. In 1984, he conducted a study in which multiple groups of students were taught the same content, but in different ways. One group received the instruction in the standard way: 1 teacher in...
