Reflecting Points to Reflect Figures

Estimate the reflection of figures by reflecting one point at a time. Refine the estimate using a grid.

Task 1

Putting It All Together

Answer these open ended questions on your own or with others to form deeper math connections.

Task 2

When reflecting a shape across a line, what aspects of that shape’s sides or angles change? What parts stay the same?

Task 3

The segments that connect the corresponding points of a preimage and image, always seems to intersect the line of reflection.  Describe the special type of intersection that occurs.

Task 4

Observe the distance from a given point to the line of reflection.  Then, observe the distance from the corresponding reflected point to the line of reflection.  What do you notice about these distances?

Task 5

Did seeing a grid make a difference in finding the reflected image? Explain why or why not.