### How Many Days?

How many days are there between February 25th 2000 and March 11th?

### Planet Plex Time

On Planet Plex, there are only 6 hours in the day. Can you answer these questions about how Arog the Alien spends his day?

### On What Day Did it Happen?

Read this article to find out the mathematical method for working out what day of the week each particular date fell on back as far as 1700.

# Stop the Clock

##### Stage: 1 Challenge Level:

You could print off a sheet of blank clocks (Word document or pdf) to record the times you and your partner choose.
Play the game several times. What do you notice?
What happens if your opponent gets to 10.30? Why?
How can you make sure you get exactly on $12$ o'clock? What time would you leave on the clock so that you can get to 12.00 on your next go, after your opponent has been?
So, what time would you want the clock to say on the go before that?
How can you work out these "key times" that you must "land on" on your way to the target?