Last week, we discussed one concept of circles: arc length. This week’s math tip will be on sector area of circles. A sector is a section of a circle. Like a piece of pie or a slice of pizza! And the sector area is the area of that particular section. To calculate the sector area, you can set Continue reading
When it comes to math and circles, the list of concepts goes on and on. One concept of circles is arc length. An arc is section of the circumference of a circle. And the arc length is the length of that section. To calculate the arc length, you can set up a proportion (see diagram Continue reading
I am happy to share another guest post from April (check out her last guest post). April is the author of April Noelle, a very insightful and inspirational blog. Today, she provides a guest post that will ensure that your child is enjoying summer, while learning at the same time. You can also learn more about Continue reading
I remember when I was teaching that I placed a lot of emphasis on the vocabulary in my math classes. The students didn’t always understand why the vocabulary was important. “Why don’t you just say top and bottom?” “Because it is the numerator and the denominator.” I actually had an administrator complain once that the Continue reading
Last week’s math tip was on surface area. We looked at the two different types of surface area: lateral and total. We also provided tips on calculating surface area correctly. Remember that the formula for total surface area also includes the formula for the lateral surface area. This makes it easier to calculate. Last week’s Continue reading
In geometry, there is area. And there is also surface area. Surface area is used to find the sum of all the areas of all the shapes of an object. These objects are usually three-dimensional. It is very easy to calculate surface area. The hardest part is probably selecting the correct formula to use. There Continue reading
What is the probability that you will solve this correctly? Manny has some marbles in a container. He has 4 red, 1 yellow, 3 blue and 2 green marbles. What is the probability that he can pick a green marble from the container, and without replacing it, also pick a red marble?