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Students often struggle with finding the missing side for rectilinear shapes.
This product comes with a print out activity for the students to do either with the teacher or on their own. Students measure sides of different rectilinear shapes and find the perimeter by adding all the sides together. Students find a relationship between parallel sides of rectilinear shapes with and without overlapping sides.
The activity can be done along during the powerpoint after each example type or the powerpoint can be used as a wrap-up of the activity to make sure all the students made the connections. This power point is a great visual to show students how the sides of simple rectilinear shapes fit together.
The power point has nine slides and most have multiple animations.
This is also great for review with the older grades. I've used it for my fifth and sixth graders as well as the younger ones.
There is a warm up where students find the perimeters of rectangles and triangles.
There is a homework assignment and exit ticket as well. The homework reinforces the idea that the perimeter of rectilinear shapes with non-overlapping sides can be found by completing the rectangle and that rectilinear shapes with overlapping sides cannot be done that way.