#Algebra2

Adrienne Hestenes

@ahestenes.bsky.social

4 months ago

8 cards containing a unique polynomial graph . One group of 3 cards that have end behavior of positive, even degree polynomials. One group of 2 cards that have the end behavior of negative, even degree polynomials. One group of 2 cards with end behavior of positive, odd degree polynomials. And the fourth group has one card with end behavior of a negative, odd degree polynomials.

The 8 graphs in the previous image have been arranged by increasing degree, then matched with an equation. The equations range from degree 2 to degree 6. Some equations are factored, some in standard form.

In #MathsToday we did an old fashioned card sort. Arranged the polynomials by end behavior, then matched up the equations to the graphs. After, I gave them some equations and they had to sketch the graph on the whiteboards, paying attention to end behavior and x-intercepts.

#Algebra2 #iTeachMath

Adrienne Hestenes

@ahestenes.bsky.social

6 months ago

Three boxes of 3inch long pullback car toys, ready for students. My favorite are the pink and red mini coopers with the Union Jack on the roof, followed closely by the Volkswagen buses. Roughly 30 toy cars can be seen of various styles.

Pullback cars must mean it’s time for Vroom Vroom ala @fawnnguyen.substack.com . Reviewing linear regressions was never so fun.

#iTeachMath #Algebra2

Saber Khan

@saberkhan.bsky.social

6 months ago

an algebra 1 graphing app in p5.js where you can graph 1 or 2 equations and get their solutions.

In honor of #backtoschool, my 23rd year in K12 education, I will share a tool I made for my #Algebra2 students, a new class I am teaching, using #p5js and a bunch of AI tools. I would love some feedback if you have the time www.notion.so/Algebra-1-Re... and the tool editor.p5js.org/saberkhan/fu...

Saber Khan

@saberkhan.bsky.social

7 months ago

In addition to my CS classes, next year I will be teaching a section of Algebra 2. I am excited to return to math education after a long break. If you know of any great Algebra 2 resources please send them my way. I am also excited to see how coding could be integrated. #algebra2

Melynee Naegele

@mnmmath.bsky.social

7 months ago

Hi! I am an ELEMENTARY math specialist. I have a teacher asking for differentiation, tier 3 resources and reading/text books to help with her Algebra 2 students. What do you LOVE @karencampe.bsky.social @fawnnguyen.substack.com @ilanahorn.bsky.social ? #MTBoS #ITeachMath #HSMath #Algebra2

Melynee Naegele

@mnmmath.bsky.social

7 months ago

Hi! I am an ELEMENTARY math specialist. I have a teacher asking for differentiation, tier 3 resources and reading/text books to help with her Algebra 2 students. What do you LOVE @mathequalslove.bsky.social @johngolden.bsky.social @mathematize4all.bsky.social ? #MTBoS #ITeachMath #HSMath #Algebra2

Math Curmudgeon

@mathcurmudgeon.bsky.social

10 months ago

Rational Functions Cipher Puzzle v2 Simplify each expression; match to the answers on the other side. 1. (5x+15)/(x^2-x-20)*(2x-10)/(10x^2+50x+60) 2. 4/(x-5)-(4x+7)/((x+2)(x-5)) 3. (4x^3+12x^2)/(x^2+5x)÷(2x^4+10x^3+12x^2)/(x^3+5x^2-4x-20) 4. 3/(x+2)+1/(x+4) 5. 4/(3(x+4))-(x+2)/(x+4)(x+1) +2/(3(x+1)) 6. (x^4-x^2)/(x+5)*(x^2+3x-10)/(x^4-5x^2+4)

Matching. A. 1/(x^2-3x-10) B. 2(x-2)/x C. 2(2x+7)/(x^2+6x+8) D. 1/(x^2+6x+8) E. x^2/(x+2) F. (x+2)/(x^2+5x+4) From the other side, list the answers to create the key to a Vigenére Cipher. Vigenére KEY: ___ ___ ___ ___ ___ ___ Use the coding / decoding tools at http://rumkin.com/tools/cipher to decode the following instructions. For each of the rational functions that follow, write in order (leaving off negative signs) AIOV AE KA IQQI; FHBPLI WO MGYXHRT CSH XSF TTX13 f(x)=(2(x-25)(x+24))/((x-2)(x+24)) f(x)=(21x-315)/(x+18) f(x)=(17x^2+340x-748)/(x^2-3x+2) f(x)=(16x-400)/(x+17) f(x)=(32(x-14)(x-8))/(2(x-8)(x+25)) f(x)=(6x^2+240x+2250)/(x^2+23x+120) f(x)=(24(x^2+4x-12))/(x^2+8x+12)

Rational Functions, factoring review, operations with algebraic fractions ... all wrapped up into one set of problems, with code-breaking. It's like butttaaah.
#algebra2
#mathstoday

Mattie B

@stoodle.bsky.social

10 months ago

When doing a probability test for independence, what is the tolerance for equality? In other words, because we're using integer values P(A) may not be exactly P(A|B), but how different can they be before we suspect dependent events? #MTBoS #iTeachMath #Algebra2

Math Curmudgeon

@mathcurmudgeon.bsky.social

1 year ago

DESMOS screen grab of a quartic polynomial and its roots.

I out together this quick demonstration of what multiple roots at a point look like to help my students understand how there can be more than one root at a point.
www.desmos.com/calculator/h...
#MathsToday
#iteachmath
#Algebra2
#Thesearefunbuthardtoread
#ThatsBetter

RobertLovesPi

@robertlovespi.bsky.social

1 year ago

A Question About Algebra II This happened over twenty years ago, and it still cracks me up. I’m not going to name the student, but I did provide a clue by using the appropriate school colors.

robertlovespi.net/2022/09/05/a... #math #mathsky #mathematics #algebra #algebraII #Algebra2 #blog

Math Curmudgeon

@mathcurmudgeon.bsky.social

1 year ago

I really need to remember #iteachmath and #algebra2

Karen Campe

@karencampe.bsky.social

1 year ago

Every year, #Algebra2 Ss learn to determine if a relation is a function.
Function sends every input to exactly 1 output, but that output doesn't have to be unique.
^^ can be confusing.
Tried new analogy today, working w/student who is a rower on the crew team.
#MTBoS #iTeachMath #MathSky

Karen Campe

@karencampe.bsky.social

1 year ago

Function Fundamentals TI-84 Tips for Algebra 2 Function notation is available on the TI-84 Plus family of graphing calculators! Help students understand functions using the graphing calculator to connect symbolic, numerica...

Today's highlight from the Back-To-School Tour of the TI84 is Function Fundamentals: TI84 Tips for #Algebra2

How to call on function definitions for easier calculations & graphing!

#MTBoS #iTeachMath #MathSky #TI84 @TICalculators

karendcampe.wordpress.com/2021/08/29/f...

Karen Campe

@karencampe.bsky.social

2 years ago

Given 2^x = 8^(y+1) and 9^y = 3^(x-9), find the value of x+y.

Happy Saturday! Let's do some quick #ProblemSolving using #TryMathLive #TryMathsLive from the February Calendar of Problems.

Here is Feb 9, a great one to remind Ss of exponent laws & common base strategy.

#Algebra2 #Precalculus #MTBoS #iTeachMath #MathSky

Karen Campe

@karencampe.bsky.social

2 years ago

YES!
And I use this method for both converting quadratic function to vertex form (meaning y = a*x^2 + bx +c) and for solving a quadratic equation by completing the square (0 = a*x^2 + bx +c) although we drop that method in favor of quadratic formula in most cases later.
#Algebra2