IF kids understand the concept, THEN they can transfer it between what they were taught and other areas of their lives.
An excerpt from a parent email:
My daughter mentioned that she was sad that she didn’t have any grandparents anymore, but that she was glad one of her grandfathers fought in WWII. I reminded her that both of her grandfathers fought in the war, and that both were in the Navy. One fought in the Atlantic and one in the Pacific. She then said “Just like equivalent fractions. Different, but the same.” That must have been one engrossing math lesson!