If you’ve spent a lot of time with my content or have ever taken one of my PD courses, then you’ve probably run into the Flexibility Formula. The formula is a framework that helps us avoid turning kids into calculators and every session in this year’s Virtual Math Summit addresses at least 1 of the 5 pillars. This week, we’re getting sneak peeks into sessions from Dr. Ange Rogers, Duane Habecker and Shannon McCartney that address the Understanding pillar and help kids understand large numbers.