lisciani Montessori Math Counting Beyond Ten: The Teens

Vito loves counting.  He may not know yet how to count from 1 to 100 but he knows how to integrate math and numbers in daily life.  He mastered his 1:1 correspondence early on and now he’s learning how to count beyond ten.  I was surprised the first time I heard him counting from 11 and up.  I didn’t introduced that to him yet but he already knows.  It’s like self taught, but I was thinking that he might have learned it from his brother.  And because he might be in a sensitive period on number now, I decided to give him a few exercises to recognize and name numbers from 11 to 20, and understanding what those numbers represent in quantity.