Area of an oval – Geometry
Area of an oval The area of an oval is the part of a plane that is inside its circumference. To figure out the area, you need to measure the height and width of the oval. [...]
28
07, 2017
28
07, 2017
Area of a circle – Geometry
The geometry of a circle The area of a circle is the flat surface inside its circumference. The area is always equal to the radius squared, multiplied by π (pi). Here's a proof that [...]
27
07, 2017
What’s an angle? Geometry made simple
Two lines cross and form four angles Where any two lines cross each other, they form four angles. These angles are parts of a circle (as you can see from the green circle segments), [...]
27
07, 2017
What is algebra? Math made simple
Simple equations on a graph Algebra is the way Islamic mathematicians figured out to connect our ideas about geometry with our ideas about numbers. You can use equations to represent geometric shapes. You can [...]
27
07, 2017
Simple equations – Algebra
Simple equations on a graph Start by thinking of a number line When we learn to add and subtract, multiply and divide, we think of numbers as being all along the number line. But in algebra we think about numbers as [...]
27
07, 2017
Number plane project – Battleship
A game of Battleship A fun way to practice plotting points on the number plane is to play Battleship. You will need two pieces of graph paper, two pencils, and two kids. Each kid [...]
27
07, 2017
The Yamnaya and the Indo-European language family
Yamnaya get around: Map of the spread of Indo-European languages Who were the Yamnaya? People we call the Yamnaya (Ukrainian for "People who lived in pits") seem to have been [...]
27
07, 2017
Map of the world in the Bronze Age
Thanks to My Maps Plus for help with the coding. How to use this map: Click on any blue marker to see what happened there. When the info box pops up, click on "find [...]
27
07, 2017
Geography of the Arabian Peninsula
Map of the Arabian peninsula Where is the Arabian Peninsula? The Arabian Peninsula is part of West Asia that sticks out to the south. It's only separated from Africa by the narrow Red Sea. And [...]
27
07, 2017
Aegean Sea Map
The Aegean Sea Where is the Aegean Sea? The Aegean Sea (eh-GEE-un) is a small ocean between Greece and Turkey, full of little islands. It is in the north-east corner [...]
