Variation Theory Illustration: Point-Slope Form

The following apps help show a basic illustration and progression of [b]variation theory[/b] within the context of students use technology to explore the point-slope form equation of a line within a thinking classroom. [br][br]Teachers can use these apps to create their own thin-sliced activities for students learning this concept.
Interact with the slider in the upper right corner. Note how the line and its equation change.
Interact with the sliders in the upper right corner. Note how the line and its equation change.
Interact with the sliders in the upper right corner. Move the LARGE POINT (located at (0,0)) around too. Note how the line and its equation change.
Interact with the sliders in the upper right corner. Move the LARGE POINT (located at (0,0)) around too. Note how the line and its equation change.
Interact with the sliders in the upper right corner. Move the LARGE POINT (located at (4,0)) around too. Note how the line and its equation change.
Interact with the sliders in the upper right corner. Move the LARGE POINT (located at (-5,0)) around too. Note how the line and its equation change.
Interact with the sliders in the upper right corner. Move the LARGE POINT (located at (0,3)) around too. Note how the line and its equation change.
Interact with the sliders in the upper right corner. Move the LARGE POINT (located at (0,-6)) around too. Note how the line and its equation change.
Interact with the sliders in the upper right corner. Be sure to move the LARGE POINT around too. Note how the line and its equation change.
– Tim Brzezinski

Information: Variation Theory Illustration: Point-Slope Form