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?


How about


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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