What is Alg 2 STEM? Or understanding the differences between STEM and regular.

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Presentation transcript:

What is Alg 2 STEM? Or understanding the differences between STEM and regular

What STEM is not This is the big take away from today, I hope. Algebra 2 STEM is not just regular Algebra 2, just more rigorous. The S.T.E. in the STEM must impact the course content.

The way we teach

We should Spill some Paint in STEM

BUT! The STEM content is more rigorous than regular Alg 2. How? In what way? Let’s examine steM a little.

Problem Posing Technique Start with x 2 + 6x + 5 = 0 Transform it into: x 2 + ?x + 5 = 0 basic Alg 1 prob

Factor x 2 + ?x + 5 = 0 Give 2 sets of real solutions to this equation and the ?. (alg 1) Give 2 sets of 4 rational solutions to this equation and the ?. (alg 2)

Factor x 2 + ?x + 5 = 0 Give 1 set of imaginary solutions to this equation and the ?. (alg 2 steM) Give a different set of imaginary solutions to this equation and the ?. (alg 2 steM)

Tweak 1 thing Factor x 4 + ?x = 0 Now it is an alg 2 problem Factor x 1/4 + ?x 1/2 + 5 = 0 Now it is an alg 2 steM problem

Additional topics that are steM 1.Asymptotes, delve into slant asymptotes and make sure they understand long and synthetic division well. 2.Rational root theorem – using p/q to find the roots without graphing 3.Completing the square with a > 1 and / or fraction or odd numbers for b; as well as generalize with a b = k and generalize; this comes up again in inverses of quadratics

Additional topics that are steM 1.Complex conjugates, rationalizing denominator 2.Composition with all functions, including polynomials, rationals, roots 3.Solving radical equations with 2 or more terms on one side of the equal sign

Topics that are STEm. Mix the Paint 1.Time spent on problems should be less, and go deeper. 2.Time for modeling questions.

Where to find STEM problems? An exploration of functions and inverses based around the additional requirements of the EPA. Using quadratic functions to predict if a ball will be a homerun or not.