Shape Sorter

Recently I realised 妹妹 could actually sort shapes. 哥哥 has a shape sorter, which I bought when he was a toddler. 妹妹 will usually open the cover than throw the shapes inside but lately I could see an interest in her in putting the shapes accordingly. And she is quite spot on. Her favourite shape is circle. Each time she will pick up circle first. I guess that's because it's the easiest shape, no adjustment is needed. Smart girl!