|
ResourceSpotlight
Students are introduced to determinants of two-by-two matrices by discovering that the determinant can be found by subtracting the products of the diagonals. Students are then introduced to Cramer's Rule and use it to solve three systems that have one solution, no solutions, and an infinite number of solutions. They graph the equations to verify their answers and are asked how Cramer's Rule can be used to determine the number of solutions to a system of linear equations.
|
|
Texas Instruments, Inc.
|
|
|
ResourceSpotlight
In this teacher-led activity, students will learn to solve systems of equations graphically. They will learn the relationship between the algebraic and graphical solutions and create equations that draw upon this connection.
|
|
Texas Instruments, Inc.
|
|
|
ResourceSpotlight
In this activity, students are given data and asked to find the finite differences. They will use this to find a polynomial that models the data.
|
|
Texas Instruments, Inc.
|
|
|
ResourceSpotlight
In this activity, students are given data and asked to find the finite differences. They will use this to find a polynomial that models the data.
|
|
Texas Instruments, Inc.
|
|
In this video, Salman Khan of Khan Academy explains systems of equations.
|
|
Khan Academy
|
|
A helpful scientific calculator that runs in your web browser window.
|
|
Holt Online Learning
|
|
This video includes sample exercises and step-by-step explanations of absolute value equations and systems of equations for the California Standards Test.
|
|
Khan Academy
|
|
Need help solving systems of linear equations? In this video, a Tutor.com algebra tutor uses the substitution method to solve a system of linear equations, and shows you how to use graphing to make sure you don’t get tricked by systems of parallel lines that have no solution. You’ll graph the linear equations, find their point of intersection, solve them using substitution, and check your work to make sure it all makes sense.
|
|
Tutor.com
|
|
A discussion of the different possibilities, with examples.
|
|
Ask Dr. Math
|
|
Standards of Learning for grade levels 2 to 12. Students can pick the subject, how many questions, narrow topics, scored with answers. It gives hints on working problems. Excellent site for those who do any end of year testing through Algebra II
|
|
Virginia State Standards of Learning
|
|