Plasers | NZ Maths

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Students use their knowledge of cartesian coordinates and linear equations to pop bubbles with a laser. The bubbles have integer values which the student sums to score points.

Learning objects

	Plasers: choose coordinates (+) The student is given a starting point for a 'laser' and is asked to enter coordinates for a finishing point. The goal is to choose a point that means the laser pops as many positive bubbles and as few negative bubbles as possible. Only the positive quadrant of the coordinate plane is used.
	Plasers: choose coordinates (+/-) The student is given a starting point for a 'laser' and is asked to enter coordinates for a finishing point. The goal is to choose a point that means the laser pops as many positive bubbles and as few negative bubbles as possible. All quadrants of the coordinate plane are used.
	Plasers: enter an equation (+) The student is asked to enter values for m and c to define a linear equation of the form y=mx+c. The corresponding line is a laser which pops bubbles with integer values. The goal is to choose a point that means the laser pops as many positive bubbles and as few negative bubbles as possible. Only the positive quadrant of the coordinate plane is used.
	Plasers: enter an equation (+/-) The student is asked to enter values for m and c to define a linear equation of the form y=mx+c. The corresponding line is a laser which pops bubbles with integer values. The goal is to choose a point that means the laser pops as many positive bubbles and as few negative bubbles as possible. All quadrants of the coordinate plane are used.
	Plasers: place bubbles (+) The student is given the equation for a line representing a 'laser'. They are asked to provide coordinates for the locations of three bubbles with integer values. The goal is to choose a coordinates that means the laser pops positive bubbles misses negative bubbles. Only the positive quadrant of the coordinate plane is used.
	Plasers: place bubbles (+/-) The student is given the equation for a line representing a 'laser'. They are asked to provide coordinates for the locations of three bubbles with integer values. The goal is to choose a coordinates that means the laser pops positive bubbles misses negative bubbles. All quadrants of the coordinate plane are used.