Coordinate plane v0.1.0
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Tap the grid to plot a point and read its coordinates, in the first quadrant or all four. Join the points into a shape, or take the quiz.
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How to use it
- Choose the grid: first quadrant, or four quadrants to 5 or 10.
- Tap to plot a point. The coordinates and the walk from the origin appear. Tap a point again to remove it.
- For a shape, plot the points in order and the lines join them as you go.
- Open the quiz for “Plot (3, -2)” and “What are the coordinates of this point?”. It starts in the first quadrant and gets harder after three right in a row.
Ideas for class
- Plot (2, 3) and (3, 2) and ask why they are not the same point.
- Draw a rectangle from four ordered pairs and find its perimeter.
- Reflect a point over the y-axis and compare the two coordinates.
- Use the quiz as a warm-up with the whole class calling out answers.
- Print a blank plane from Printable graph paper to practice on paper afterwards.
Related
Questions
Why does the quiz start in the first quadrant?
Over, then up is the easiest case. Negative numbers come in on level 2, after three right in a row.
Can students use it on a tablet?
Yes. Every tap on the grid plots a point, and the points are large enough for a finger.
Is my work saved?
No. Nothing is stored or sent.
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