(playful music) (electronic gadgets clinking) - [Children] Math Mights! - Welcome 3rd grade Math Mights. I'm so excited you joined us today. My name is Ms. Askew and I can't wait to have fun learning ...

(upbeat music) - [Kids] Math Mights! - Welcome, third grade Math Might friends. I'm so excited that you joined us today. My name is Ms. Askew and I can't wait to have fun with you learning about math.

Take thousands of students, add a new method of math instruction and what do you get? Lots of confused, skeptical parents and teachers. Growing concern about so-called inquiry math — known by critics ...