Quadrilaterals C: Square & Rectangle
-
Quadrilaterals C: Square & Rectangle
-
-
Each pupil should choose two sheets. The folding instructions are done on both sheets.
-
It is suggested to divide this lesson into two seperate lessons.
-
-
A discussion question:
What is the shape of the two sheets that you have on the table? Explain.
-
-
Answer:
The shape of the polygons is a square having 4 equal sides and 4 right angles.
-
-
Folding instructions: Fold one side of the sheet to lie on top of the opposite side.
-
-
Folding instructions: Fold together the two shorter opposite sides.
-
-
Folding instructions:
Open your folded shape. How many congruent squares can you see?
-
-
Answer:
On the larger square we can see 4 smaller congruent squares. -
Congruent polygons have an equal number of sides, and all the corresponding sides and angles are congruent. However, they can be in a different location, rotated or flipped over.
-
-
Folding instructions: Cut your larger square into 4 smaller squares.
-
Have some smaller squares already cut available for pupils with cutting difficulties.
-
-
Folding instructions:
In the following activities, use 2 of the smaller squares.
-
-
Group activity:
One group should make a larger square by composing all of the small squares together. The other group should make a larger rectangle composed with all of their small squares. -
There will possibly be some difficulty in composing the larger shapes with all of the smaller squares. The pupils will investigate the same and different properties of each larger shape.
-
-
Folding instructions: Fold together opposite sides in two of the smaller squares.
-
-
Folding instructions:
Fold together the opposite shorter sides of 2 rectangles and then open the folds.
-
-
Folding instructions:
Fold opposite vertices in the two opened squares.
-
-
Folding instructions:
Fold as shown, with both squares.
-
-
Folding instructions: With both shapes, fold the right-angle vertices into 2 smaller triangles.
-
-
Folding instructions: Turn over the shapes.
-
-
Folding instructions:
Fold your shapes as shown and then open.
-
-
Folding instructions: Turn over the shapes.
-
-
Folding instructions:
With another smaller square, fold opposite sides together to form a rectangle.
-
-
Folding instructions:
Fold back the vertex of the shape as shown and put the head of the dog onto the rectangle.
- Lesson Aims
- The pupils will identify the following quadrilaterals: a square,a rectangle and will compare the same and different properties of each quadrilateral.
- The pupils will fold various rectangles and squares comparing lengths of sides.
- Name of Model
A hand-held dog
- The lesson structure
Triangles activity A, Triangles activitY B , Polygon activity A, Polygon activity A, Polygon activities B 1/2 , Polygon activities B 2/2 , Polygon activity C , A measuring tool for comparison of lengths , Quadrilaterals A , Quadrilaterals B: Square & Rectangle – same and different, Quadrilaterals C: Square & Rectangle ,Line of reflective symmetry 1/2, Line of reflective symmetry 2/2, Lines of symmetry in quadrilaterals, Translation of shapes
- Lesson content
In the process of folding the model, the pupils will investigate the properties of the shapes by composition and decomposition.
- Prior knowledge
The concepts: polygons, their sides and vertices.
- Stages in the curriculum
- Materials
Origami paper 15 cm X 15 cm, 2-sheets per pupil
