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Algebra I: Reasoning with Equations and Inequalities Mr. Tamayo http://mathwithmrtamayo.weebly.com/ AZ Standards & ISTE Standard AZ Standard HS.A-REI.B.3. Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters. HS.MP.2. Reason abstractly and quantitatively HS.MP.7. Look for and make use of structure. HS.MP.8. Look for and express regularity in repeated reasoning. ( http://www.azed.gov/azccrs/files/2014/04/azccrs_hs_math_finalstd_rev_04_2014.pdf ISTE Standards Students 5b: Exhibit a positive attitude toward using technology that supports collaboration, learning, and productivity. http://www.iste.org/docs/pdfs/20-14_ISTE_Standards-T_PDF.pdf Today’s Lesson • Solving inequalities in one variable with positive and negative numbers. • Focus: multiplicative and divisive inequalities Introduction to Solving Inequalities Ex: 1<2 Solving Inequalities in one variable 12x > 144 12x > 144 12 12 x > 12 Rewrite the inequality Isolate the variable Final Answer Negatives in the Inequalities -9x > 63 -9x > 63 -9 -9 x < -7 Solve the Inequality Isolate the variable Sign is flipped due to the multiplicative inverse x < -7 Final Answer Fractions in the Inequalities 1x > 4 Solve the Inequality 2 2 1x > 4 Multiply by its reciprocal 1 2 x>4 2 1 x>8 Final Answer Still don’t get it? Check this video out https://www.youtube.com/watch?v=srJn2ZUYB4M Jeopardy Time! https://www.superteachertools.net/jeopardyx/jeopardy-review-gamefromcom.php?gamefile=http://www.superteachertools.com/jeopardy/userg Homework Assignment MyMathLab Section 2.1 Problems #1-20 odd Due: 10/23/14 Hard copies of home work available at request. Check out the classroom website for additional announcements and resources.http://mathwithmrtamayo.weebly.com/ Resources https://www.youtube.com/watch?v=srJn2ZUYB4M http://www.iste.org/docs/pdfs/20-14_ISTE_StandardsT_PDF.pdf http://www.azed.gov/azccrs/files/2014/04/azccrs_hs_math_fi nalstd_rev_04_2014.pdf http://www.polleverywhere.com/ http://www.polleverywhere.com/