There’s a new game out from the inventor of Arithmemouse, called Topple Drop. Like Arithmemouse, Topple Drop is full of beautiful colorful graphics – and not just for the game elements. The background scenery is also full of eye-catching, cheerful but surreal images – how many games have you seen where the sun has three eyes, and a big pair of headphones? Read the rest of this entry »
Flat Bread Fractions
Some time ago, I posted a fractions puzzle involving flat bread. You can read about it here. Here’s the question – if I take a flat piece of bread, and give you half, then you give me back a quarter, then I give you back an eighth, and you give me back 1/16, and so on ad infinitum, how much of the original flat bread do I have?
Timez Attack Division
There’s more great news from the team behind Timez Attack – they’ve added a Division game!
As I’ve blogged about in the past, Timez Attack is a fantastic way for kids to learn times table facts. It’s a real 3D computer game, immersing kids in a variety of simulated environments, where they battle monsters with a unique weapon : times tables skills! Timez Attack made my son the times table champion of his grade 3 class.
Adding Heat Doesn’t Cool It Down
This post is wrong!! It’s been pointed out that adding salt to boiling water raises the boiling point. It doesn’t lower it. So something very strange was happening in the experiment below. Perhaps it was just a screwy thermometer??
Just for a change, here’s a post about Chemistry. Or Physics, some might argue. I say Chemistry.
My son had just finished some questions in a science workbook, and I had to mark it. Unfortunately, there was one question I didn’t know the answer to – does adding salt to water lower its boiling point?
The Math of Conspiracies and Doomsdays
Yesterday was my grandfather’s 105th birthday party. He actually turns 105 tomorrow, on the 23rd of May. Yesterday was also supposed to be the end of the world, according to a very small splinter group of Christians. Clearly, the guy who made that prediction was thoroughly convinced, and thoroughly wrong.
Why do people make predictions like that? Let’s see what the math says! But first, more about my grandfather’s birthday party…
The Math Of Housing Prices
In terms of house prices, the city where I live avoided the worst of the Global Financial Crisis. There was a spurt in house prices that stopped in 2007, but after that, prices didn’t crash, they plateaued. Now, I rent a house, and I also own a house which I rent to someone else. One day, I’d like to sell the house I own, and buy one to live in. Naturally, I pay attention to newspaper headlines like “House Prices Plummet In May!”
The Math of Cold Feet
The game Dinosaur Dodger – or rather, the paradox that inspired it, contains some important lessons for life.
The Math of Voting
The House of Representatives in the United States Congress is responsible for creating laws that, if they get through the Senate and the President, become, well, law. the House has 435 members. The British House of Commons has 650 lawmakers. Even the Australian House of Representatives has 150 members.
Democratic countries deliberately choose to have their laws created by large groups of people. The idea is that special interest groups will not be able to have too much influence on the passage of laws, and so the government will truly be a government representative of the people.
Is it possible, then, that an entire democratic country could be run by as few as two individuals? Let’s see what the math says…



