
Image by Carl_C via Flickr
I would like to say a job WELL DONE to Ms. Howard and Ms. Whetstone for teaching Mr. Wager’s 3rd and 7th period class (respectively) today in his absence. Students, you all put your best foot forward and Mr. Wager will surely be proud of you all as we (academic mentors) are. You all grasped today’s lesson pretty well.
Just to recap…
- The “X” method is not a form of factoring but a technique that will help you memorize the factors of products and how they relate to addition.
For example, you are given the numbers 4 and 5. In order to find the sum of the numbers, you must add them together. To find the product of said numbers, you must multiply them together.
EXAMPLE: numbers [ 4 and 5 ]; sum [ 9 ]; product [ 45 ]
Each number is placed on the left and right of the “X.” The sum of the two numbers is placed in the top space of the “X” and the product of the two numbers is written in the bottom space of the “X.”
**REMEMBER: The connection between the two terms that is used frequently when you are solving polynomials: distribute and factor.
DISTRIBUTE: VERB. To multiply. To give each term in the parentheses the same number amount written outside of the parentheses. [9 (9x + 5) = 81x + 45 ]
FACTOR: VERB. To divide. To break down each into smaller parts. The polar opposite of factoring.
Keep those laminated multiplication tables that Mr. Wager supplied and your X factoring worksheets that I gave you today because they will really come in handy for future lessons.