# Web Links for Algebra 2, 3rd ed.

## Algebra Helps

• Mathforum.org—A mathematics library page with links to mathematical topics, issues, teaching resources, tools, lesson plans, assessments, and more
• The Teacher’s Corner—Bulletin boards, printable worksheets, collaboration projects, and more
• National Library of Virtual Manipulatives—A multitude of manipulatives, applets, and ideas for class lectures or individual student enrichment activities
• Algebra.help—Lessons, calculators, and worksheets
• Math Is not Linear—Prezi presentation calling for a connected teaching of mathematics
• Using Manipulatives—An article promoting the manipulative approach
• Algeblocks—A manipulative approach to polynomial algebra; Here you can see what actually happens when you factor a binomial.

### Section 1.3

• Exponent Rules—Use a TI graphing calculator program to discover the rules of exponents.

### Section 2.2

• Shark Attack—A TI graphing calculator activity investigating how modifying the slope or intercept of a linear equation changes the graph

### Section 2.7

• Distances and Midpoints in the Coordinate Plane—TI graphing activities that lead to the midpoint and distance formulas

### Section 2 and Dominion Modeling

• Global Warming in Perspective—An article examining global warming, a proper Christian response to global warming claims, and a believer's responsibility under the Dominion Mandate

### Section 3.2

• Boats in Motion—Solve systems of linear equations algebraically and graphically.

### Chapter 3.4

• Graphing Systems of Inequalities—A Wolfram Demonstration in which the user inputs a system of inequalities, chooses test points, shades, and checks the solution
• The Impossible Task—A TI graphing calculator manufacturing application activity in graphing and solving inequalities

### Section 4.3

• Matrix Multiplication—A Wolfram Demonstration that illustrates matrix multiplication
• Crop Rotation—An activity involving a crop rotation plan using matrix multiplication

### Section 4.4

• Triangle in the Matrix—Determine the area of a triangle using the determinant of a matrix containing ordered pairs representing the triangle's vertices.

### Section 4.5

• Meadows or Malls?—Use matrices and solve a system of equations to determine land use.

### Section 5.6

• Solving Quadratic Equations—A Wolfram Demonstration using the quadratic formula to find the real and complex solutions for quadratic equations

### Section 5.7

• Quadratic Formula—A TI graphing calculator activity using the quadratic formula to solve quadratic functions; also investigates how the discriminant can be used to determine the nature and number of solutions

### Section 6.8

• Building Curves—Graphically explore the addition, subtraction, multiplication, and division of polynomials and fit a polynomial function to given data.
• One of the Many Ways—A calculator activity for graph polynomials and making conjectures about the number of possible zeros a polynomial can have

### Section 8.7

• Change of Base—An activity using a TI graphing calculator to discover the change of base formula

### Section 8.8

• Chill Out: How Hot Objects Cool—A TI graphing calculator experiment investigating Newton's Law of Cooling and using exponential functions to model the cooling data

### Section 9.7

• Illuminations: Crows and Whelks—Perform an experiment, analyze data, and use rational functions to investigate the mollusk-dropping behavior of crows.
• Building Boxes—Use polynomial and rational functions to determine the specifications of box manufacturing.
• Asymptotes & Zeros—A TI graphing utility exploring the connection between the asymptotes and zeros of a rational function and the zeros of a polynomial function

### Section 10.2

• Solving Trigonometric Equations—A TI graphing calculator activity for solving for angle measure by using inverse trig ratios and by finding the intersection of two graphs

### Section 12.2

• Arithmetic Sequences—A TI graphing calculator activity which connects arithmetic sequences to scatterplots and linear equations

### Section 12.3

• Illuminations: To Fret or Not To Fret—Explore the geometric sequences used to position frets on a stringed instrument. Also, relate geometric sequences to exponential functions.
• Double Tree—Use the TI graphing calculator to model the growth of a tree using a geometric sequence.
• Squares Inside Squares—A lesson on developing a recursive formula for finding the area of squares inscribed in squares

### Section 13.6

• Binomial Probabilities—Use a TI graphing calculator to simulate rolling a die.
• Modeling Probabilities—Use a TI graphing calculator to simulate trials of a binomial experiment and compare experimental probabilities with theoretical probabilities. Investigate how the number of trials changes the outcome.

### Section 13.8

• Average Orange—Use a TI graphing calculator to explore the area under a normal curve.

### Section 14.4

• Orbit of Jupiter—Use a TI graphing calculator to explore Cartesian and parametric models for Jupiter's orbit.
• Moving with the Planets—An article on the historical theories of planetary motion