Using a protractor is a skill that some students struggle to master - mainly because a protractor has two different scales - and if you use the wrong one, you'll have the wrong angle measurement.
Watch this video as a good review to using a protractor:
Students should be able to identify, define, draw, label and name the following triangles:
Go to this link for a good review:
Students should be able to identify, define, draw, label and name the following:
Why find Prime Factors?A prime number can only be divided by 1 or itself, so it cannot be factored any further! Every other whole number can be broken down into prime number factors. It is like the Prime Numbers are the basic building blocks of all numbers. This idea can be very useful when working with big numbers, such as in Cryptography.
Cryptography is the study of secret codes. Prime Factorization is very important to people who try to make (or break) secret codes based on numbers. That is because factoring very large numbers is very hard, and can take computers a long time to do. If you want to know more, the subject is "encryption" or "cryptography".
A longer answer at this site:
More information from this site:
https://www.eduplace.com/math/mw/background/6/03/te_6_03_fractions_ask.htmlFactors and Fractions: When Students Ask