## Preparation- Find about ten (10) objects all the same, but they have two (2) different sides.
The objects could be:Screw caps - cap up and cap down $1 coins - heads and tails Small pieces of paper with a cross on one (1) side - blank or cross - Write the title of this challenge and today's date on a fresh page in your maths journal.
They start with four (4) yellow in a line and have to change the line to all blue. ## Getting Started
## The Next ChallengeWhen you think you can do it, you have to test yourself.- Give the objects to someone else and ask them to make the line.
*Put your hands behind your back (or sit on them) and don't move them*.- Tell the other person they are a robot and have to do exactly what you tell them.
- Explain that they are going to turn over the plugs, but you are going to tell them which ones.
- If it works, that's great. Record the number of moves, then go to the next section.
- If it doesn't work, discuss the problem with the other person and try again until it does work.
## Publishing
## Just Before You FinishRead your Working Like A Mathematician page again and describe how you worked like a mathematician in this activity.There have been at least six (6) ways. Can you find them?
## Answers & DiscussionThese notes were originally written for teachers. We have included them to support parents to help their child learn from Red To Blue.- Notes for Red To Blue
Send any comments or photos about this activity and we can start a gallery here.
Maths At Home is a division of Mathematics Centre |