10/4/2007 Algebra 1-Solving Equations with Variables on Both Sides

Students took notes over example problems on the board and we graded our homework. See some more examples here. Our goal today is to solve equations with variables on both sides of the equation. We will use the same techniques that we used in the previous sections.

Homework:
page 157, #'s 18-40 even.

10/4/2007 Algebra 2-Systems of Equations

We began our work in Chapter 3 today. Chapter 3 deals with systems of equations, also called 2 equations, 2 unknowns. We will take 2 (or more) equations involving 2 variables and solve for both. To introduce the idea today, I will show students how to find the solution by graphing and how to check whether an ordered pair is a solution. I will introduce one of the algebraic methods of solving to them today, the substitution method. After today students should be able to:
1) Check ordered pairs to see if they are solutions to systems of equations
2) Solve a system of equations by graphing both equations
3) Give the number of solutions to a system of equations from the graph
4) Use the substitution method to solve a system of equations

Students will practice in class with this worksheet. Here is a link for a video demonstration of the substitution method.

Homework:
page 143 #'s 12-18 even, 32-40 all & page 152 #'s 11-13,16,18,19,22