Dinner Time Maths

Dinner Time Maths – Maths Facts

Dinner time is the perfect time for conversations and a great opportunity to engage with your children. The idea of Dinner Time Maths is to add a small spark of maths to the conversation. Discuss a mathematical idea as a family or solve a problem together.

Here are some fun maths facts to spark interesting conversation over the dinner table.

If you write out pi to two decimal places, backwards it spells “pie”. Next time you serve up some apple pie at dinner, tell your kids this great little tidbit! It may even help them to remember pi to 2 decimal […]

Logic Puzzles and Mathematical Reasoning

There’s a big difference between those students who can “do maths” and those who can explain what they’re doing and why. At all times our goal is to raise mathematical thinkers who have the skills to back it up.
Kids often ask me why they need to learn what they’re learning and how it is relevant to the real world. As part of my reply, I explain to them that maths trains the brain in problem solving and logic in ways that no other school subject does. In the “real world” it’s important to be able to break a problem […]

Dinner Time Maths – Ice Bucket Challenge

How many people do you know who’ve been nominated for the Ice Bucket Challenge? Have you yourself been nominated and taped yourself being soaked by a freezing cold bucket of water? Are your kids talking about it?
How about bringing the following question up during your next Dinner Time Maths chat and seeing where it leads?

How many days will it take for all the adults of Australia to be nominated for and take part in the Ice Bucket Challenge fundraiser for ALS?

16 days.
No, I’m not missing a zero and my calculator isn’t broken. Based on a mathematical model, it will […]

The Power of Algebra through Mind Reading Tricks

A great way to get your children interested and curious about the power of algebra is through fun and freely available activities involving what first appears to be mind reading.
Let’s have a go!

Think of a number.

Add one to your answer.

Double it.

Take away 3.

Add the number you first thought of.

Add 7.

Divide by 3.

Now take away the number you first thought of.

I’m now reading your mind………

Your final result is 2!
 
Are you intrigued? You might be wondering how this works. Try it with your kids. Try it as a family or even with friends.
Here is a great website to try heaps more: […]

An Irish Maths Joke

This is an oldie but a goodie! And it will make young and old chuckle!
An Irishman applied for a job on a construction site, but the foreman wouldn’t hire him until he passed a simple maths test.

Here is your first question, the foreman said.  “Without using numbers, represent the number 9.”

“Without numbers?”  The Irishman says, “Dat is easy,” and proceeded to draw three trees.

“What’s this?” the boss asked.

“Ave you got no brain? Tree and tree and tree make nine,” said the Irishman.

“Fair enough,” said the boss.  “Here’s your second question.  Use the same rules, but this time the number […]

Dinner Time Maths – Game Show Dilemma

Dinner time is the perfect time for conversations and a great opportunity to engage with your children. The idea of Dinner Time Maths is to add a small spark of maths to the conversation. Discuss a mathematical idea as a family or solve a problem together.
The Game Show Dilemma
A game show host offers you the choice of three doors and the chance to win an amazing prize which is hidden behind one of the three doors. Behind the other two doors is a booby prize. Once you’ve selected your door the game show host opens one of the other […]

Dinner Time Maths – Equivalent Fractions With Bread

Dinner time is the perfect time for conversations and a great opportunity to engage with your children. The idea of Dinner Time Maths is to add a small spark of maths to the conversation. Discuss a mathematical idea as a family or solve a problem together.

I was reviewing equivalent fractions recently with a Year 7 girl. She understood the steps, realising that if she multiplies the numerator by a number she must then do the same to the denominator. She knew that the same goes for division as well. It was when I drew her a diagram and showed […]

Dinner Time Maths – Tell a Maths Joke

Dinner time is the perfect time for conversations and a great opportunity to engage with your children. The idea of Dinner Time Maths is to add a small spark of maths to the conversation. Discuss a mathematical idea as a family or solve a problem together.

Telling and understanding a maths joke can require a good level of mathematical understanding and therefore telling a maths joke over the dinner table can be a great, light hearted, fun way to teach your children (and perhaps yourself) something new. The more maths you know the more instances you’ll understand internet memes and […]

Dinner Time Maths – Skipping Koalas

Dinner time is the perfect time for conversations and a great opportunity to engage with your children. The idea of Dinner Time Maths is to add a small spark of maths to the conversation. Discuss a mathematical idea as a family or solve a problem together.
This is a well known, popular puzzle with variations around the world. The aim is to move the yellow koalas from the left to the right and the green koalas from the right to the left. Playing this game over the dinner table will inevitably generate wonderful conversations, help your children to develop problem […]

Dinner Time Maths – Guessing PINs and Lotto Numbers

Dinner time is the perfect time for conversations and a great opportunity to engage with your children. The idea of Dinner Time Maths is to add a small spark of maths to the conversation. Discuss a mathematical idea as a family or solve a problem together.
We use four digit passwords/PINs for so many things. Ask your children to try and guess your 4 digit ATM PIN code. After a couple of guesses ask them to think about how many possibilities there are. Discuss that there are 10 choices for the first digit, 10 for the second, the third and […]