Ms. Whitt
Khan Academy: Mental Math Subtraction Help. Plickers. Google Map Math: Fun in Nottingham. How Many Donuts is That? Clicking on this image will show it larger in a new window.
Act One: Take a look at the picture. What is the first question that comes to mind? How many donuts is that? What information would be useful? Act Two: See pictures below. FlexMath - Mental Math. Dan Meyer: Mental Math Girl Scout Cookies. Dan Meyer: Mental Math Volume. Dan Meyer: Mental Math Gummy Bear. Dan Meyer: Mental Math Toothpicks.