Fish 1 Solution

Thanks for visiting NZMaths.
We are preparing to close this site by the end of August 2024. Maths content is still being migrated onto Tāhūrangi, and we will be progressively making enhancements to Tāhūrangi to improve the findability and presentation of content.
 

For more information visit https://tahurangi.education.govt.nz/updates-to-nzmaths

In the diagram below, there are 6 counters. Alyssa thinks they look like a fish swimming to the left.

She wonders if she can make it swim to the right. Yes, she can. But what is the smallest number of counters that she needs to move to make the fish swim to the right?

Solution

Alyssa manages to make the fish swim in the opposite direction by moving just two counters.

She took the two counters and moved them as in the diagram. Now she has the fish swimming to the right!

Extension

Try making a bigger fish and see how many counters you need to move to make it change direction.