Let's make a magic pinwheel, which gives many shapes at the center. Follow the instruction by clicking on the slider below. First, make one unit of the pinwheel followed by 8 such identical units. We can do this activity by using either regular paper or some colorful origami paper.
(Make the folds as neat as possible, and do the tucking very carefully in order to get proper shapes inside the pin-wheel)
Sliders
Task 2
Explore the pinwheel! Try to get as many shapes as possible by sliding the different units closer to or farther away from each other. In your notebook, draw the shapes that you are getting at the center of the pin-wheel.
(Click here to draw)
How many shapes did you get? Does the group sitting next to you have an equal number of shapes? If there are any that you didn’t get, try getting them. Write the names of these shapes.
(click here to write)
Extension Task 1
What is the shape of a unit in pinwheel?
What are the measures of the interior angles of this shape? Justify your answer.
(Click here to write)
Extension Task 2
While making the 8 units of the pin-wheel, what are the shapes that you have come across? Note down these shapes.
If you are not sure about the name of the shape you can draw and find its name.
GEOMETRIC REASONING
Making a Magic Pinwheel
Task 1
Let's make a magic pinwheel, which gives many shapes at the center. Follow the instruction by clicking on the slider below. First, make one unit of the pinwheel followed by 8 such identical units. We can do this activity by using either regular paper or some colorful origami paper.
(Make the folds as neat as possible, and do the tucking very carefully in order to get proper shapes inside the pin-wheel)
Task 2
Explore the pinwheel! Try to get as many shapes as possible by sliding the different units closer to or farther away from each other. In your notebook, draw the shapes that you are getting at the center of the pin-wheel.
(Click here to draw)
How many shapes did you get? Does the group sitting next to you have an equal number of shapes? If there are any that you didn’t get, try getting them. Write the names of these shapes.
(click here to write)
Extension Task 1
What is the shape of a unit in pinwheel?
What are the measures of the interior angles of this shape? Justify your answer.
(Click here to write)
Extension Task 2
While making the 8 units of the pin-wheel, what are the shapes that you have come across? Note down these shapes.
If you are not sure about the name of the shape you can draw and find its name.