Today, my son learned about comparative adjectives. Which triangle is bigger, biggest, smaller, smallest. I found him in his briefs sitting in butterfly position (heels together, knees flat) holding his feet. “Bigger!” He says. He extends both legs and looks down. “Smaller!” He says and he bring both feet together. Over and over. Then I ask him what is bigger. “That right there!” He points right to his crotch.