Ma & Pa Kettle and other mathematical dilemmas

This week’s #edublogsclub prompt 12 asks us to embed something into a post.

No problems!

One of my favourite videos that I use in many of my workshops to do with differentiation and non-funded special needs is Ma & Pa Kettle’s most convincing lesson in mathematics.

The problem: How many times does 5 go into 25?

I bet you said 5 …

Can you think of any other numbers that can be manipulated to do the same?

No?

How about

13×7=?

Watch the video below. Costello (Albert and Costello fame) is pretty convincing…

Why are they so convincing?

I’ve used the Ma & Pa video in the past and asked students to convince me otherwise.

I would also imagine an open ended problem solving session where students explore the possibility that there may be other numbers for which we can present a similar argument.

How could you use these videos in your classes?

Feel free to share your ideas below.

Thanks for reading 🙂

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