Classroom time should be spent on the most important things. Learning for the sake of learning is meaningless. There is no value in knowing how many dots are on the ceiling. The classroom time could been spent learning something more meaningful. For example, cursive writing should not be taught.
I would suggest only praising skills that help a child economically or make life fulfilling. I do not consider learning different ways to say a word as fulfilling as history, art, or philosophy.