1. I can roll over, grasp a rattle, and reach for things and have begun feeding myself finger foods, but I can’t wave bye-bye yet. How old am I? 2. Which of the following children has abnormal language development? 3. You see a 13-year-old who reports she is learning some basic geometry (areas, volume etc.). The ability to successfully master these concepts occurs during which Piaget developmental stage? 4. I can walk well on tiptoes, my speech is 50% understandable, I know six body parts, ...