Calendar Question

Earlier I posted a calendar question. I asked if I was right? Apparently not. Thanks Mr C for commenting and clearing it up.

It's actually not correct (sorry Jacob). It happens every time 1 July falls on a Friday (obviously). This happened in 1949, 1955, 1960, 1966, 1977 and many other dates -- on average, about once every 7 years. The last time was in 2005.

Maths Song

This is Fun!

Puzzle

Mr Golan asked the class to see if they could find the sum of the first 50 odd numbers. As everyone settled down to their addition, Julia ran to him and said, "The sum is 2,500." Mr Golan thought, "Lucky guess," and gave him the task of finding the sum of the first 75 odd numbers. Within 20 seconds, Julia was back with the correct answer of 5,625.
How did she do this?

Fast Maths Trick - thanks to Jacob.

THANKS JACOB! (Year 6)

Once Only

Okay, because so many of you can't do your homework tonight, I've decided to join the club rather than fight against it ..... and .... once only!

Calendar

How about that! Apparently this July there are 5 Fridays, 5 Saturdays and 5 Sundays. It only happens every 823 years. Am I right? Let me know.

The Monty Hall Problem

My Year 6's have asked me to explain this. The problem goes like this. There are three boxes. Only one of them has a prize. After you have picked a box, the game show host opens one of the other boxes that has nothing in it (the game show host knows what is in each of the boxes). He then gives you the chance to switch boxes or not. What do you do?

The Monty Hall Problem
(Make sure you have watched the YouTube video first)


The Monty Hall Problem -

Year 8

Geometry Year 8 -

Year 8, see if you can open this document and print off. This is a test run! You will not be able to do this yet. Your homework is in the post below.

Homework for Year 8 27th April

HI Everyone. Thanks for coming! I am so excited! Try this (one and only question for homework today. Do it on a sheet of paper or in your practice book.)

Also, please try the Make 24 puzzles. Look on the right and click on the Year 8 and Make 24 folder. Can you do them? (Do not look at the answers straight away!)

Make 24

The second in our Make 24

Rules:

Use each number once only in any order

Use any of the 4 operators (multiplication, division, subtraction, addition)

You may use brackets

1 3 4 6 = 24

The answer is here. Do NOT look until you have tried for awhile!

Year 6 Year 7 and Year 8

Check out agoogleaday.com and let's have some fun!