You’ve probably noticed that we are using ancient philosophers and mathematicians as competing characters for our MathMat-iQ+ game.
So, here, let’s first feature probably the best known of our fabulous four – Pythagoras. Most adults will be aware of his most famous theorem but most primary school children have yet to know of it.
The theorem refers to a right-angled (90°) triangle and can be used to calculate the length of any of these sides on a right-angled triangle. Pythagoras’ theorem states:
The square of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides.
Secondary school children and adults will remembers it as a 3 4 5 triangle. i.e. (3x3) + (4x4) = (5x5).
Or in other words: 9 + 16 + 25
How to demonstrate and remember this theorem in three easy steps using our Mat!
Now you can very effectively demonstrate this to your children by measuring points on the ‘Plus’ mat with a rule It will take less than a couple of minutes.
• 1.Measure across the mat from the first top square to the third square (you will note it measures 9 cm). Then;
• 2.Go down the mat 4 squares (16 cm).
• 3.With a ruler, measure the length from the 3rd square across to the 4th square down. You will find it is exactly 25cm (5x5).
So, there you have it: a ‘345’ 90°triangle.
Get your children to carry out this little experiment and they will probably remember the Pythagoras’ Theorem for the rest of their lives, and will forever know how to create an angle of 90°, simply with using a rule.
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