(cheerful music) (electronic gadgets whirring and ringing) - [Children] Math Mights! Welcome, 2nd grade Math Mights. My name is Mrs. McCartney. I'm so excited that you've joined us today for our show.

Second, the shape must be completely solid: that is, it must have a well-defined inside and outside that is separated by the shape itself. Third, any point on a line that connects two points in a ...

I'm Mrs. Markavich, and I'm so excited that you're here with me today. Let's check out our plan for the day. Today, we'll be doing a number talk, and we'll be talking about solid shapes. Let's warm up ...