**Days 201-205 challenge students**with fitting small and LARGE marshmallows inside a glass with 8 ounces of hot cocoa. You might ask, "Mr. Stadel, why didn't you do a chubby bunny estimation challenge?" I ran out of marshmallows. Ha!

I'm really curious what conversations might arise in your classrooms as students formulate ideas and reasoning.

*What's too LOW?*I've put a boundary and prompt to challenge students to be braver (greater) than zero.

*What's too HIGH?*I've put a boundary and prompt to challenge students to be braver (lower) than 1,000,000.

*Your estimate.*There's a prompt for students to check if their estimate is within their range.

*Your reasoning.*I know we (students and teachers) can do better than simply saying "I guessed."

I'm suggesting a sentence starter for your students,

**having them type, "I noticed" first**and follow it with their reasoning.

I'm open for feedback on these constraints/prompts. Please let me know what you think.