Topics for May 18th

Algebra I

Today we discussed
Today we investigated the Quadratic Formula.  We also reviewed three different ways to determine the roots of a quadratic equation:

1. Factor the equation
2. Complete the square
3. Use the Quadratic formula

Sections Covered in Textbook
1) 13-5: Solving quadratic equations by using the quadratic formula (pages 536-540)

Video Tutorials
1) Solving equations using the quadratic formula
http://www.virtualnerd.com/algebra-1/quadratic-equations-functions/discriminant-quadratic-formula/quadratic-formula/solve-by-quadratic-formula
2)  Using quadratic formula with irrational solutions
https://www.youtube.com/watch?v=Nwx4ZO9Hopk

Assignments
1) Page 539 #'s 21-37 odd, 45.  Also, pick two problems and solve by completing the square.  Ensure that your answers to both methods are the same.

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

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Pre-Algebra

Today we discussed
We continued on with our discussion about data sets and how our sets can have similarities, but also vary.  We used the range, maximum values, minimum values, upper and lower quartiles to build box-and-whisker plots to visually represent a data set.

Sections Covered in Textbook
1) 10-4: Measures of Variation (pages 374-377)
2) 10-: Box-and-Whiskers Plots (pages 378-381)

Video Tutorials
1)  What is the interquartile range?
http://www.virtualnerd.com/middle-math/probability-statistics/measures-variation/interquartile-range-definition
2) What is a Box and Whiskers Plot?
http://www.virtualnerd.com/pre-algebra/probability-data-analysis/central-tendency-variation/measures-variation/what-is-a-boxandwhisker-plot

Assignments
1) Page 380 #'s 4-22 all

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

Concepts for February 23rd

Algebra I

Today we discussed
Our discussion about relations moved into equations as relations.  A solution of a relation that has two variables is any ordered pair that makes the equation true.  We reviewed solving literal equations, and solving for a particular variable.  A review of literal equations can be found here.

Sections Covered in Textbook
1) 9-3: Equations as Relations (pages 364-368)

Video Tutorials
1)  Equations as Relations
https://www.youtube.com/watch?v=hQerO3N2zEE

Assignments
1)  Worksheet 8-9 #'s 1-14 all
Download Worsheet and Answers Here!
2)  Graphing Picture.
Download Coordinates Here!
Download Graph Paper Here!

3) Pages 367-368 #'s 13-41 odd; 42, 43, 44

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

OPTIONAL!

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Pre-Algebra

Today we discussed
Our discussion about solving equations moved to working with variables on both sides.  We discussed strategies for moving the variable first, and which one to pick to start the process.  Remember, there are now three possibilities for solutions: you may have one solution, you may have an infinite number of solutions (all real numbers work), or you may have no solution at all.

Sections Covered in Textbook
1) 7-4: Variables on Each Side (pages 263-266)

Video Tutorials
1) Variables on both sides of equation
https://www.youtube.com/watch?v=fDMxOiS5g7k

Assignments
1) Worksheet on Two Step Equations

Download Worksheet and Answers here!

2) Page 266 #'s 13-35 odd; 42

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

OPTIONAL!

Back To Work on February 21st!

Algebra I

Today we discussed
We moved on to begin a discussion about coordinate graphing, ordered pairs, and relations. We discussed what a relation is and how domain and range are defined.  We also discussed what the inverse of a relation is, and how to represent relations in four different ways:  ordered pairs, table, mapping and coordinate graphing.

Sections Covered in Textbook
1)  9-1; Ordered Pairs (pages 354-358)
2)  9-2: Relations (pages 359-363)

Video Tutorials
1) What is the Coordinate Plane?
http://www.virtualnerd.com/middle-math/integers-coordinate-plane/coordinate-plane/coordinate-plane-definition
How do you plot coordinates in the coordinate plane?
http://www.virtualnerd.com/algebra-1/relations-functions/coordinate-plane/coordinate-plane-graphing/coordinate-plane-graph-points-example
3) What is a relation?
http://www.virtualnerd.com/middle-math/integers-coordinate-plane/coordinate-plane/coordinate-plane-definition
4) Finding the Domain and Range of a Relation
http://www.virtualnerd.com/algebra-1/relations-functions/relations/relations-examples/find-domain-range-example
5) Finding the Inverse of a Relation
http://www.virtualnerd.com/algebra-1/relations-functions/relations/definitions/inverse-definition

Assignments
1) Pages 362-363 #'s 13-41 odd; 42

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

OPTIONAL!
If you need practice on coordinates and graphing, compete Page 257 #'s 17-53 odd.

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Pre-Algebra

Today we discussed
Today we moved into solving two-step equations.  These equations have two operations going on.  We discussed solving using inverse operations, and using the reverse order of operations to figure out where to start solving.  Also, keep in mind that when you have a fraction that has an operation in the numerator, there is an understood set of parentheses there.  That operation will need to be "undone" last.

Sections Covered in Textbook
1) 7-2:  Solving Two Step Equations (pages 255-258)

Video Tutorials
1)  Solving Two-Step Equations

• http://www.virtualnerd.com/pre-algebra/one-two-step-equations/two-step/two-step-solution/two-step-example
• https://www.khanacademy.org/math/algebra-home/alg-basic-eq-ineq/alg-two-steps-equations-intro/v/solving-equations-1

Assignments
1)  Page 257 #'s 17-47 odd

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK