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4434Algebra Balance Scales
http://www.merlot.org/merlot/viewMaterial.htm?id=424049
A virtual manipulative to help students balnce linear equations in one variable. Algebra Tiles
http://www.merlot.org/merlot/viewMaterial.htm?id=424046
Virtual algebra tiles with on-screen activity assistance. Domain Representations
http://www.merlot.org/merlot/viewMaterial.htm?id=423898
Students use graphs, tables, number lines, verbal descriptions, and symbols to represent the domain of various functions.Egg Launch Contest
http://www.merlot.org/merlot/viewMaterial.htm?id=423885
Students will represent quadratic functions as a table, with a graph, and with an equation. They will compare data and move between representations. Light It Up
http://www.merlot.org/merlot/viewMaterial.htm?id=423882
In this cooperative learning activity, students are presented with a real-world problem: Given a mirror and laser pointer, determine the position where one should stand so that a reflected light image will hit a designated target.This investigation allows students to develop several rational functions that models three specific forms of a rational function. Students explore the relationship between the graph, the equation, and problem context. Pan Balance- Expressions
http://www.merlot.org/merlot/viewMaterial.htm?id=423857
This interactive pan balance allows numeric or algebraic expressions to be entered and compared. You can "weigh" the expressions you want to compare by entering them on either side of the balance. Using this interactive tool, you can practice arithmetic and algebraic skills, and investigate the important concept of equivalence.Power Up
http://www.merlot.org/merlot/viewMaterial.htm?id=423895
Using old batteries and a voltage sensor, students get a real feel of the meaning of negative and positive numbers. Students explore addition of signed numbers by placing batteries end to end (in the same direction or opposite directions) and observe the sum of the batteries’ voltages.Talk or Text
http://www.merlot.org/merlot/viewMaterial.htm?id=423674
In this lesson, students compare different costs associated with two cell phone plans. They write equations with 2 variables and graph to find the solution of the system of equations. They then analyze the meaning of the graph and discuss other factors involved in choosing a cell phone plan.Understanding Algebraic Factoring
http://www.merlot.org/merlot/viewMaterial.htm?id=424044
This lesson can be used to show the geometric basis of algebraic factoring using algebra tiles.