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"When students know what math means, they won't get the rules mixed up".
FEATURED ITEMS
An easy way to factor quadratic polynomials. This lesson teaches how to handle trinomials using the method invented by Lynda Aguirre in 1999. Ta...
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Finding all the factors of numbers and then determining the Greatest Common Factor
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Factoring trinomials using the method of Completing the Square. Step by step lecture includes examples and detailed explanations of the differen...
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50 Minutes
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An easy way to factor quadratic polynomials. (replaces grouping)
This lesson teaches how to handle four term quadratic polynomials using the met...
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Step by step lecture demonstrating how to factor trinomials using the quadratic formula. Includes real and imaginary solutions
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50 Minutes
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How to calculate exponents, zero power, and negative exponents are included.
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Adding Fractions with the same denominator and the Butterfly Method (addition shortcut)
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PowerPoint Lecture explaining concept of scientific notation, then providing step-by-step examples of changing form from scientific notation to s...
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Step by step lecture demonstrating how to do Polynomial Long Division.
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Addition and Subtraction of Fractions with different denominators by finding common denominators
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Graphing one variable inequalities using a number line
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Slideshow lecture demonstrating how to find prime numbers and how to use them to perform prime factorization.
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This powerpoint slideshow demonstrates the step by step process of solving for "x" in equations using addition, subtraction, multiplication, and ...
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Lecture demonstrating how to solve Radical (squareroot, cuberoot) equations one step at a time. Includes definitions, examples, special cases and...
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FEEDBACK
wwilsonkim
Thank You. I am a third grade teacher I had to help my daughter with this topic in 6th grade and for the life of me I could not remember how to do it. This was such a big help.
January 27, 2013
jennalehman
I bought this power point in order to teach the Butterfly Method to my students. The Butterfly Method taught here does not arrange the procedure in the shape of a butterfly, so the students didn't get it. I had to draw it on the board to go along with the power point.
September 25, 2012
ABrewer11
Very interesting way to factor...I have never seen this approach before.
June 9, 2012
KarenO
Just used this with my 8th grade Algebra class and it worked GREAT!!! Clear, step-by-step explanations! Made my job EASY! Even my most reluctant learners did well with this!
January 4, 2012
Lynda Aguirre (TpT Seller)
It's encouraging to hear how these lessons help other teachers, they've always worked great for my students. Thanks for the comments
January 6, 2012 
Lynda Aguirre (TpT Seller)
Thanks for the feedback. I use these lessons in my own classroom and am glad to find a place to share them with other teachers.
January 6, 2012
Ask Lynda Aguirre a question. They will receive an automated email and will return to answer you as soon as possible.
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QUESTIONS AND ANSWERS:
KarenO re: Greenebox Factoring Method:Trinomials
Lynda,
I absolutely LOVE this method, but I do have a question that the Greenebox Method doesn't quite cover correctly. In a problem like #2 in your sample problems on the last page where the second term is negative and the third term is positive, following the steps of the Greenebox method as explained in your PowerPoint doesn't lead the students to the correct answer, as the signs of the split middle term are both negative as they should be, but the final answers both end up positive when they need to be negative. Any suggestions on how to correctly teach this without changing anything in the method as it is presented in your PowerPoint?
I absolutely LOVE this method, but I do have a question that the Greenebox Method doesn't quite cover correctly. In a problem like #2 in your sample problems on the last page where the second term is negative and the third term is positive, following the steps of the Greenebox method as explained in your PowerPoint doesn't lead the students to the correct answer, as the signs of the split middle term are both negative as they should be, but the final answers both end up positive when they need to be negative. Any suggestions on how to correctly teach this without changing anything in the method as it is presented in your PowerPoint?
January 5, 2012
Lynda Aguirre (TpT Seller)
Hi Kareno,
I looked at the problem you mentioned and it has the correct answer (both negative). Without seeing exactly how you are doing the problem, I can only guess at where the misunderstanding is. When you chose the signs for the inner and outer terms, they should both be negative because they were added together (since the 3rd term is positive). These negative signs both come out to make the factors negative. In other words, here is how it's broken up.
Problem: 3y^2-16y+5
Inner and outer terms: -1y and -15y
Final factors: (3y-1)(y-5)
Hope this helps. If you have more questions or if I'm looking at the wrong problem, please let me know.
Thanks,
Lynda
P.S.If you want to send me an email through my tutoring website: greenebox.com, I'll give you my skype login name and then I can take a look at your work and go into more details using live video
I looked at the problem you mentioned and it has the correct answer (both negative). Without seeing exactly how you are doing the problem, I can only guess at where the misunderstanding is. When you chose the signs for the inner and outer terms, they should both be negative because they were added together (since the 3rd term is positive). These negative signs both come out to make the factors negative. In other words, here is how it's broken up.
Problem: 3y^2-16y+5
Inner and outer terms: -1y and -15y
Final factors: (3y-1)(y-5)
Hope this helps. If you have more questions or if I'm looking at the wrong problem, please let me know.
Thanks,
Lynda
P.S.If you want to send me an email through my tutoring website: greenebox.com, I'll give you my skype login name and then I can take a look at your work and go into more details using live video
January 6, 2012
TEACHING EXPERIENCE
6 years-Public School Mathematics: Grades 6-12 14 years-College/University Mathematics Private Tutoring: K-college (all levels of mathematics)
MY TEACHING STYLE
Online lectures: Concept based combined with step-by-step examples of standard methods Group work: discovery method and concept exploration
HONORS/AWARDS/SHINING TEACHER MOMENT
Associate Professor of Mathematics-(tenured) at San Antonio College
MY OWN EDUCATIONAL HISTORY
BS Math Education 1991 UTSA Texas Teaching Certificate MS Mathematics- concentration statistics UTSA Mathematics Education Post-Graduate courses-(48 hours)
ADDITIONAL BIOGRAPHICAL INFORMATION
Owner of a Private Tutoring company-Greenebox Tutoring (1999-present) www.greenebox.com
GRADES TAUGHT
Sixth, Seventh, Eighth, Ninth, Tenth, Eleventh, Twelfth, Higher Education, Adult Education
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