Archive for the ‘direct proportion’ Category
April 9, 2026
With the World Fuel Crisis in play, this post from 2014 seems more relevant than ever.
Note: All ‘imaginary’ human fat will be sourced from Liposuction facilities.

Of course, in heavy traffic you are burning up the bio-fuel/fat getting nowhere.
Fuel Consumption (F) can plummet, even for the Mini, from 3.4 kg/ 100 km to 6.8 kg/100 km to 8.8 kg/100km. You may as well get out of the car and walk!!
ENERGY:
Posted in algebra, Basic Bio-fuel Calcs, direct proportion, Middle School, Ratio, Year 7 mathspig, Year 9 Mathspig | Tagged Bio-diesel, bio-fuel, car, Crisis, diesel, drive, fat, Gas, green, how far, human, mini, Petrol, travel, World | Leave a Comment »
October 8, 2025
Posted in co - ordinates, decimals, direct proportion, graphs, Linear Equation, median, Middle School, powers, probability, Rates, Ratio, Scientific Notation, Simultaneous Equations, trigonometry, units length, units speed, Zombie Maths | Tagged All, crazy, Fun, graphs, Halloween, Math, rates, ratio, Simultaneous equations, The Walking Dead, TOPICS, trigonometry, World War Z, Year 8, Zombie | Leave a Comment »
September 26, 2025
Posted in direct proportion, Ratio, Zombie Maths | Tagged calculations, direct proportion, easy, Godzilla, height, Middle school, ratio, USA units, you vs Zombie Godzilla, Zombie | 1 Comment »
September 24, 2025
Posted in direct proportion, Ratio, Zombie Maths | Tagged calculations, direct proportion, easy, Godzilla, height, Math, metric, Middle school, ratio, you vs Zombie Godzilla, Zombie | 1 Comment »
October 25, 2024
It was common for girls to make Needlework Samplers in the 19th C. But Anne Foreman stitched the border and then printed the solution to a mathematical problem adding her name and the date.

Mathspig typed a clearer copy of Anne’s work(below).

What was Anne doing?

Anne has the correct answer but how did she do it?



Posted in direct proportion, Indirect proportion, Long Division | Tagged 1800s, 1884, Anne Foreman, arithmetic, army, calculations, compound, direct, girl, indirect, Long Division, proportion, rations, rule, sampler, young | Leave a Comment »
September 16, 2022
As the weather improves – Spring in Melbourne, my city & Fall in USA & Autumn in the UK – it is an ideal time to take math outdoors. Here are some fab exercises for Middle School Math.

Lego Man soccer fields will vary in size depending on the height of each player picked by each student. This does your head in. It is really challenging maths!

McGill Uni link here.

Don’t forget to throw in Mathspig’s lame protractor jokes.

You’ll find full calculations at the Maths is Fun blog.

You’ll find more fab outdoor junior and middle school maths activities at the terrific Maths and Movement blog.

Some students will discover their co-ordinate point is not on the grid. Students should then work out that they will need a different scale for the y-axis. You can get more inspiration at the Stand Again blog.
Posted in 6 Outdoor Maths Adventures: Middle School, co - ordinates, decimals, direct proportion, geometry, graphs, Linear Equation, Middle School, Parabolas, trigonometry, Year 9 Mathspig | Tagged Adventure, Co-orinate geometry, linear graph, Math %, Middle school, Outdoor, protractor, ratio, similar triangles, Soccer, tree height, trigonometry, World Cup | Leave a Comment »
January 30, 2021
Metric version here.



Silverback Gorilla stats here



Human anatomy weight % here.

Speed info here

Impact times for boxers here
Power comparisons here.

Posted in algebra, Arithmetic, direct proportion, GODZILLA vs KONG, Ratio, units length, units weight, Year 7 mathspig, Year 9 Mathspig | Tagged 2021, contest, force, Godzilla, GODZILLA vs KONG, height, impact, King, king hit, Kong, Movies, power, punch, speed, USA units, Weight | 1 Comment »
January 30, 2021
USA units version here.


Silverback Gorilla stats here



Human anatomy weight % here.

Speed info here

Impact times for boxers here
Power comparisons here.

Posted in algebra, Arithmetic, decimals, direct proportion, GODZILLA vs KONG, units length, units weight, Year 7 mathspig, Year 9 Mathspig | Tagged 2021, contest, force, Godzilla, GODZILLA vs KONG, height, impact, King, king hit, Kong, Movies, power, punch, speed, Weight | 1 Comment »
September 30, 2014

Of course, in heavy traffic you are burning up the bio-fuel/fat getting nowhere.
Fuel Consumption (F) can plummet, even for the Mini, from 3.4 kg/ 100 km to 6.8 kg/100 km to 8.8 kg/100km. You may as well get out of the car and walk!!
ENERGY:
Posted in algebra, Basic Bio-fuel Calcs, direct proportion, Middle School, Ratio, Year 7 mathspig, Year 9 Mathspig | Tagged 1 kg, 1 lb, 1 pound, bio-fuel, car, diesel, drive, energy, fat, green, how far, human, mini, travel | 8 Comments »
June 30, 2014

This fab idea comes from Juliet Robertson, an outdoor education consultant in Scotland. Her blog Creative star learning is one of the most inspiring outdoor maths blogs you will find.







Check out Mathpig’s protractor joke here.


Another fab idea from Juliet Robertson.
Posted in 10 Outdoor Maths Adventures: Grade 3 -5, Circle C, D and r, direct proportion, Junior School, Ratio, Roman Numerals, symmetry, tables | Tagged activities, adventures, angles, circle, circumference, geometry, junior school, Math %, measuring, outdoor math, primary school, Roman Numerals, scale, tables, World Cup Soccer | 3 Comments »