Wednesday, July 17, 2013

Adventures in Pedagogy: Four Zero

Aidan was having trouble with subtracting numbers that required renaming renamingborrowing, umm, taking away more than you have. He was simply taking the bottom smaller digit from the larger regardless of which one was the subtrahend or minuend on top or bottom.

He picked up some sort of rule along the way and was obviously misusing it. So he decided to get a little creative.

Take a look.

- Posted using BlogPress from my iPhone


Amy Gruen said...

I love this! It looks like your son just invented negative numbers. Amazing, and adorable. I'd say he is well on his way to being a math professional. :) Thanks for sharing.

Matt Townsley said...

This sounds sort of like that "new math" stuff I keep reading about...

Unknown said...

That was awesome! I like that method of subtracting.

Joe said...

What a great video! The world of zero is mysterious. Thanks for sharing your thoughts and ideas. The internet is really a great place to find tools and resources for my classroom. For example, I stumbled upon a tool called ClassroomIQ ( It’s a very efficient grading tools. It helps me grade homework and exams more quickly and easily. It’s a very handy and convenient tool to have. Can you write more posts on education technology? I'm craving for ed tech tools!

Unknown said...

This was great man. I'm so glad you captured this and shared it. The commentary on you (her dad) as a math teacher is hilarious and priceless at the same time.

"How your dad talks strange!"

"What's the difference between a 5-zero and a regular 5?"

"Zero is the entrance!"

One question, who drew the number line? You? Her? Someone else?

I'm showing this to my students.