Blog # 9 Measurement: Length, and Area

MEASUREMENT

 LENGTH AND AREA! 

Taking a look at the materials, and presentations presented on area and measurement I came across a couple terms that I wanted to clarify for myself so I could relate the ideas better with my students!

This video outlines the idea of square roots. The square root is the number value that when multiplied by itself equals the original number! Its commonly used in Pythagorean Theorem a formula introduced in the intermediate level.  It looks at both the length, and the area of an object. For example A'2+B'2=C'2, and C is the longest side of the triangle the square root of the hypotenuse is equal to the sum of the squares of the other two sides. The longest side of the triangle is called the hypotenuse. 3'2+ 4= 5'2  the calculation becomes 9+16 =25.

The third concept that I wanted to introduce is PI throughout our lesson it was suggested that before teaching students how to find the circumference of a circle its a good idea to refresh, or introduce them to the idea of PI. PI comes from the Greek Alphabet originating from the word Perimeter. It is is considered a magical number because no matter how you do the formula to calculate the circumference of a circle large, or small PI will always be the same. Here is a diagram the better articulate the idea.

I think that these would be great tools to incorporate into the minds on portion of a lesson! I would have students try out both theories to check their understanding, and provide feedback accordingly! 

Reference:

http://britton.disted.camosun.bc.ca/pi/piorigin/piorigin.html

https://www.khanacademy.org/math/pre-algebra/exponents-radicals/radical-radicals/v/understanding-square-roots