Thursday, December 27, 2012

Intermediate Algebra Course Outline

Below you will find the topics for Intermediate Algebra as published by College of the Sequoias in their course outline:

Intermediate Algebra (Algebra II)
COURSE TOPICS:
Absolute Value Equations and Inequalities

  • Solve absolute value equations and inequalities

Radical Expressions and Equations

  • Properties of radicals
  • Rational exponents
  • Simplify radical expressions
  • Operations with radicals
  • Solve radical equations
  • Solve radical equations which come from real-world applications
  • Operations with complex numbers
Quadratic Equations
  • Solve quadratic equations using factoring, extracting roots, completing the square, and quadratic formula
  • Solve applications (for example: max/min problems)
  • Graph quadratic equations
  • Solve quadratic and rational inequalities
  • Solve equations that are quadratic in form

Functions
  • Understand and apply the definition of a function
  • Function notation
  • Apply the vertical and horizontal line tests
  • Graph and determine the domain and range of the core functions
  • Evaluate and apply the algebra of functions including addition, subtraction, multiplication, division, and composition
  • Find the inverse of core functions

Logarithmic and Exponential Functions
  • Graph logarithmic and exponential functions
  • Apply the properties of logarithmic functions
  • Solve logarithmic and exponential equations
  • Solve applications of logarithmic and exponential functions including exponential growth and decay, pH, compound and continuous interest, carbon dating, half-life, and earthquake magnitudes

Conic Sections
  • Apply the midpoint and distance formulas
  • Convert the following conic sections into standard form by completing the square: parabolas, circles, ellipses, and hyperbolas
  • Identify and graph the following conic sections: parabolas, circles, ellipses, and hyperbolas

Optional Topics
  • Solve 3X3 systems of linear equations
  • Solve nonlinear systems of equations


Elementary Algebra Course Outline

Below you will find the topics for Elementary Algebra as published by College of the Sequoias in their course outline:

Elementary Algebra (Algebra 1)
COURSE TOPICS:

Numbers and Sets

  • Set or interval notation
  • The number line
  • Arithmetic and algebraic operations of basic math symbols
  • Order of operations
  • Simplifying algebraic expressions

Solving Linear Equations and Inequalities
  • Solving linear equations
  • Evaluating and solving formulas
  • Solving single variable word problems
  • Solving linear inequalities

Graphing Linear Equations
  • Graphing linear equations
  • Slope and intercepts
  • Find equations of lines
  • Parallel and perpendicular lines
  • Graphing linear inequalities in two variables

Systems of Linear Equations & Problem Solving
  • Solving by graphing, substitution, and addition methods
  • Solving applications
  • Graphing systems of linear inequalities

Exponents and Polynomials
  • Rules of exponents
  • Negative exponents
  • Scientific notation
  • Addition, subtraction, multiplication, and division of polynomials

Factoring
  • Greatest common factor
  • Trinomials
  • Difference of squares
  • Difference and sum of cubes
  • Factoring by grouping
  • Solving polynomial equations by factoring including applications

Operations and Rational Expressions
  • Simplification of rational expressions
  • Addition, subtraction, multiplication, and division of rational expressions
  • Complex rational expressions
  • Solving rational equations with applications
  • Solving rational literal equations for a given variable



Tuesday, December 18, 2012

Saturday, October 20, 2012

Solving Linear Systems - Sample Intermediate Algebra Test Questions

Sample test questions for Intermediate Algebra - Chapter 3 - Solving Linear Systems have been posted.


Please feel free to use this worksheet or cut-and-paste anything you find here into your course. Below you will find the associated videos for this section. Click on a problem and watch it worked out on YouTube.























Sunday, September 30, 2012

Adopt One Open Textbook and Make a Difference


The passage of the Open Textbook bills in California is a significant development in the open educational resources (OER) space. We have been working on getting the word out as to the benefits of Open Textbooks for some time now. However, when the largest higher education system in the US takes action like this – folks will take notice. In fact, I think this news could be the “tipping point” for an Open Textbook revolution.
Consider the $172 cost of the new edition of one of the top selling algebra books for one of our highest enrolled mathematics courses - Algebra. Now consider that I have over 40 students in each of my 3 sections - that is over 120 students:


$172 x 120 students = $20,640

This is a lot of money for one instructor's one semester of Algebra - now scale this up to the over 340,000 Algebra students in California and you start to see the significant amounts of money involved here!  Here is an info-graphic made by the 20 Million Minds Foundation and an open textbook savings calculator. I like to say that adopting an open textbook is like your very own local stimulus plan!
http://www.20mm.org/infographic-open-source-impact.html 
Now some might argue that the top selling textbook is better for any number of reasons... and yes it might be.  But we have to start considering student cost in our decisions to adopt.  

Is it $172 better?
Is it $100 better?
Is it $50 better?
Is it $25 better?
Can I supplement any shortcomings?
Do I have the time to make change?

I happen to think the 21st century college instructor will use a LMS to aggregate OER as a means to present a course that leverages his/her expertise. High quality modular Open Textbooks and resources are the key. Modifying open textbooks, collecting good content and building courses is time consuming. However, the benefits in course relevance and cost far outweigh any upfront effort. New editions are totally up to you and not a product of the bottom line!
We need to take the “all of the above” approach to addressing the soaring costs of education. These bills may not solve the cost issue overnight - but they sure bring the $200 textbook problem into laser focus. I truly hope the use of Open Textbooks tips - where more faculty and students become aware of their viability. 

Instructor Challenge: Start by adopting one open textbook for next semester. They are hard to find, modify, and supplement.  Some links are provided below that might help. Join the OER community:

Students Challenge: Start by searching out open textbooks and send the links to your instructors.  Sign the petition. This will be your legacy to those who come after you.

College Open Textbooks: http://www.collegeopentextbooks.org/

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Sunday, September 16, 2012

Algebra Video Help

Our collection of Algebra videos to accompany our Elementary and Intermediate Algebra textbooks is complete.  So far we have over 60,000 views with a definite uptrend.  From the many comments, it is clear that the short and to the point approach is much appreciated!

These videos are embedded in the FREE to read online textbooks. In addition, you can choose the appropriate course below and then visually search the problems. Click on a problem that seems similar and you will be redirected to a video solution on YouTube.




If a video helps you... please comment or push the like button.  If you are an instructor, feel free to copy-and-paste these links into your LMS.