Creating interactive sketches using Geogebra - 2

3. Creating interactive sketches using Geogebra - 2
Question:
    Create a lesson using checkboxes to show the construction of a parallelogram.  Use checkboxes for all the steps in the construction and give descriptions that will give room for the students to think about how the construction is proceeding.  Mark the vertices.
    Measure and label the sides, angles and diagonals.
    Show the intersection of diagonals as well as the measures of segments of the diagonals; the diagonal measures can be displayed through the use of a checkbox.
    It should be possible to change the construction to show the parallelogram becoming a rectangle and a square.
    Use the textbox to display the appropriate properties of the parallelogram, rectangle and square

This is to be submitted as a single file.