# Act 1:

*Which number did he pull?*

First things first, you may be thinking, “What’s with the toaster box?” It looked like a good size and was available as a frugal option.

I’d start this lesson before Act 1 by doing this Estimation 180 type task. How many ping pong balls are in the bag?

Here’s the reveal:

From there, I’d jump into Act 1 and begin the big task for the day.

# Act 2:

*What information would be useful to figure this out?*

The students may be tempted to assume that 144 balls are in the box (based on the Estimation intro). So, I included the fill height.

And the ball diameter…

Finally, I gave the total #1 balls in the box and set up a ratio for the other numbers. The students won’t know the exact number of balls (there are 99) so they will have to rely on their volume calculations from above.

# Act 3:

# Sequel:

*WhatÂ would happen if the ratio was 2:3:1?*

*What would happen if he pulled 5 balls out before picking the winner?*

# Official Lesson Page:

What did I miss? How can this be improved?