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Graphing Inequalities
L.O. All pupils can manipulate inequalities to show their values on a number line All pupils can represent linear inequalities with one variable on a Cartesian plane Most pupils can represent linear inequalities with two variables on a Cartesian plane Key Words
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Why might we use inequalities in everyday life?
Starter: Why might we use inequalities in everyday life?
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Graphing Inequalities
L.O. All pupils can manipulate inequalities to show their values on a number line All pupils can represent linear inequalities with one variable on a Cartesian plane Most pupils can represent linear inequalities with two variables on a Cartesian plane Key Words
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Main 1: Volunteer to write some questions on the board.
manipulate inequalities to show their values on a number line Volunteer to write some questions on the board. Your classmates will have to solve them.
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Write the solutions on your mini wipeboards.
Main 1: manipulate inequalities to show their values on a number line Write the solutions on your mini wipeboards.
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Graphing Inequalities
L.O. All pupils can manipulate inequalities to show their values on a number line All pupils can represent linear inequalities with one variable on a Cartesian plane Most pupils can represent linear inequalities with two variables on a Cartesian plane Key Words
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linear inequalities with one variable on a Cartesian plane
Main 2: linear inequalities with one variable on a Cartesian plane Write some questions fitting the description: Find the set of solutions by showing graphically on a Cartesian plane these linear inequalities with one variable.
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linear inequalities with one variable on a Cartesian plane
Main 2: linear inequalities with one variable on a Cartesian plane What are these graphs displaying? Ext. Write a question with the graph as the solution for each of the graphs
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Graphing Inequalities
L.O. All pupils can manipulate inequalities to show their values on a number line All pupils can represent linear inequalities with one variable on a Cartesian plane Most pupils can represent linear inequalities with two variables on a Cartesian plane Key Words
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linear inequalities with two variables on a Cartesian plane
Main 3: linear inequalities with two variables on a Cartesian plane What are the two variables usually associated with the Cartesian plane? What is the usual general form of an equation of a line with two variables?
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linear inequalities with two variables on a Cartesian plane
Main 3: linear inequalities with two variables on a Cartesian plane Write this inequality so it looks like the general form of a linear equation. 3x – y > 12
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linear inequalities with two variables on a Cartesian plane
Main 3: linear inequalities with two variables on a Cartesian plane How could you plot it? 3x – 12 > y OR y < 3x - 12
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linear inequalities with two variables on a Cartesian plane
Main 3: linear inequalities with two variables on a Cartesian plane y < 3x - 12 x -2 2 4 y -18 -12 -6
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linear inequalities with two variables on a Cartesian plane
Main 3: linear inequalities with two variables on a Cartesian plane y < 3x - 12 x -2 2 4 y -18 -12 -6
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linear inequalities with two variables on a Cartesian plane
Main 3: linear inequalities with two variables on a Cartesian plane y < 3x - 12 x -2 2 4 y -18 -12 -6
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Shade each of the described regions on the board
Main 3: linear inequalities with two variables on a Cartesian plane Shade each of the described regions on the board
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Graphing Inequalities
L.O. All pupils can manipulate inequalities to show their values on a number line All pupils can represent linear inequalities with one variable on a Cartesian plane Most pupils can represent linear inequalities with two variables on a Cartesian plane WWW? EBI?
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