In this how to you will learn how to measure things indirectly. Indirect measurement is when you calculate something's measurement by measure the shadow. First, all of your measurement have to be taken around the same time. Next, measure your height. After, measure the object's shadow. After put the tip's of your toes on the edge of an object's shadow. Now you just use a proportion to solve what the height is. Here is a link to help you.
A scale factor is a number used as a multiplier in dilation. Dilation is the act of being enlarged or minimized. Say you have a dimension of 3''. The scale factor is 2:1. So, you multiply the dimension by the scale factor to get your new dimension. After you multiply those numbers, you get 6''. Here is a link that relates to this subject.
Dimensional analysis is the process of analyzing units to decide which conversion factors to use. You can use this in real life if you want to figure your gas mileage. Here is a link to a website to help you
In this how to you will learn how to estimate square roots. You could use this in the real world if you are an engineer or if you are a video game designer. Here is a video to help you understand.
In this how to you will be learning about fractions. I will show you how to multiply and divide them. Here is a problem with a description. For dividing fractions you will have to use reciprocals.
In this how to you will learn how to solve equations with fractions. You could use this in college. Here is an example on how to do one of these problems
Rational numbers can be written as a fraction or as a/b. The "b" in a/b cannot be zero because you can't divide by zero. an example is 1.5. 1.5 can be written as 3/2/ Irrational numbers are numbers that can't be written as a fraction. A famous irrational number is pi. You can use this as a subject if you're a math teacher. Here is a video to help understand.
