Number Devil Activities: The Fourth Night

The fourth night introduces abstract concepts such as the Pythagorean theorem and irrational numbers.  Use these activities to try to get a concrete grasp on these abstract ideas.

Activity One:

Make your own Square Root Worksheet.

Memorize the perfect square roots.

Activity Two:

Make a Square Roots Clock... Instructions coming soon!

Activity Three:

Plant a square root garden.  Choose a root vegetable to grow such as carrots or radishes.  Prepare a garden plot.  This could be as simple as a large pot filled with potting soil or a small box garden.  Choose how many veggies you want to plant, but the number must be a perfect square such as 36 or 49.  Plant your seeds in a perfect square, for example to plant the square root of 49 you would plant 7 rows of 7 seeds.

Activity Four:

The Number Devil introduces irrational numbers to Robert.   What is this famous irrational number?  3.141592...  It is Pi or

A fun story about the invention of Pi is [amazonify1570911665::text::::Sir Cumference and the Dragon of Pi[/amazonify].  Although a picture book, children of all ages will enjoy it.

See how many digits of Pi you can memorize.  (Leave me a comment below and let me know how many you've memorized.)

Just for fun find out if your birthday can be found in pi.

Activity Five:

The Number Devil teaches Robert the Pythagorean Theorem.

Fascinated by numbers, Pythagoras believed that everything in life could be explained by them; however the triangle stumped him.  Using whole numbers, he couldn't determine the length of the third side of a right triangle.  This is because it is an irrational number which were still undiscovered in Pythagoras' lifetime.  Pythagoras discovered that the length of all the sides of the triangle could be written using whole numbers if they were squared.  Check out this visual demonstration and this visual demonstration that show how the theorem works.

More Number Devil activities