Just a heads up for this post: I am going to brag. I posted a few photos of Leo's amazing star ship creations. All of these ships he makes are completely on his own and he is very intentional about them. He knows exactly what ship he is trying to make and executes it as well as he can using Duplo blocks.
Also, Leo not only knows all the planets in our solar system and their correct order, but he also can name the moons too. he is our little genius!