## Regional Centre for teachers of Special Education

#### Polygon activity decomposition and composition B 2/2

**Lesson Aims**The pupils will fold and identify shapes according to their properties.

The pupils will use paper folding in order to make geometric shapes and investigate their properties.

**Name of Model**A rabbit finger puppet

**The lesson structure**measuring tool for comparison of lengths ,Polygon activity 3 decomposition and composition 1/2 , Polygon activity 3 decomposition and composition 2/2, Quadrilaterals B: Square & Rectangle – same and different, Quadrilaterals B: Line of reflective symmetry 1/2 Line of reflective symmetry 2/2, Lines of symmetry in quadrilaterals, Perpendicular line and perpendicular side of poligon, Perpendicular line

**Lesson content**In this lesson the pupils investigate polygons that are formed during the folding process. There is a surprise at the end of the lesson. The pupils learn new concepts and refresh their previous learning.

**Prior knowledge**If during the folding process there are cases of inexact folding by some of the pupils, then these cases will be used to identify differences between the polygons and their properties. The pupils will also learn the concept of polygon sides and vertices.

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#### Introduction to Visual Representation of Angles-1/3

**Lesson Aims**The first lesson for the learning of the concept of angle using the mouse shaped made in the lesson as an aide.

**Name of Model**A mouse.

**Lesson Structure**The mouse,circle and angle as a measure of rotation.

**Lesson Content**This lesson is the first of three lessons teaching the concept of angle. Through the folding process the pupils have a dynamic experience of this concept. The idea of measure of rotation as a method of understanding the concept of angle is applied with moving the mouse shape clockwise. This method and definition of an angle as a measure of rotation is understood while creating the angle by the rotational movement. Two mice are folded-one to take home and the other for the next lesson on the subject of angle.

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#### Angles-2/3

**Lesson Aims**The pupils will construct a circle using the measuring tool and marking dots at equal distances.

**Name of Model**Circle.

**Lesson Structure**Mouse and circle.

**Lesson Content**This is the second lesson in learning the concept of angle as a measure of a rotation. The following lesson will make use of the mouse and circle of the the two previous lessons to fully understand the dynamic approach of folding in order to see the formation of an angle as a process of rotation. It is suggested that the pupils make several circles.

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#### Angles-3/3

**Lesson Aims**Pupils will recognize that the size of an angle is determined by the measure of rotation in relation to a given segment line.

**Name of Model**The mouse game looking for the cheese.

**Lesson Structure**Mouse, circle and the visualization of the mouse rotation on the circle.

**Lesson Content**This lesson is the 3rd activity demonstrating the concept of angle as measure of rotation.

**Materials**Glue stick,mouse and circle.

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#### Quadrilaterals B: Square & Rectangle – same and different

**Lesson Aims**- The pupils will identify the square and rectangle and know the same and different properties of each shape.
- The pupils will fold a rectangle from a square and investigate the lengths of the sides.

**Name of Model**An envelope

**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

**Prior knowledge**The concepts of vertex, side and polygon

**Stages in the curriculum**

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#### Line of reflective symmetry 1/2

**Lesson Aims**- To identify a line of reflective symmetry.
- To discover the properties of a reflective line of symmetry in a given shape.
- To find a line of symmetry in a given shape.

**Model Name**Line of reflective symmetry 1/2

**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**- This lesson is the first lesson about the concept of reflective symmetry. There is no final model and its contents are preparation for the following lesson whose model is at the core of the topic of symmetry.

**Prior knowledge**Polygons.

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#### Perpendicular and parallel straight lines 1 1/2

**Lesson Aims**During the folding processes the pupil will relate to perpendicular and parallel lines and segments.

**Name of Model**There is no model in this lesson.

**The Lesson Structure**According to planned curriculum.

**Lesson content**This is a prepatory lesson to the next lesson about parallel and perpendicular lines and segments with the model of a dress. In the lesson the pupils investigate the properties of parallel and perfpendicular lines using their measuring tool.

**Prior Knowledge**The concepts of angle,a right angle and a square.

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#### Line of reflective symmetry 2/2

**Lesson Aims**- To identify a line of reflective symmetry.
- To discover the properties of a reflective line of symmetry in a given shape.
- To find a line of symmetry in a given shape.

**Model Name**A heart of symmetry

**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**This lesson is the second lesson about the concept of reflective the symmetry. pupils will investigate the reflective symmetry, during the process of folding the hart

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#### Perpendicular line and perpendicular side of polygon

**Lesson Aims**- The study of Perpendicular Lines and Perpendicular Sides of Polygons.
- Comparison of angle sizes.
- Investigation of angles and Perpendicular Lines and Perpendicular Sides of Polygons.

**Name of Model**A sweet box.

**The Lesson Structure**The measuring tool,Composition and Decomposition,Polygons 3,Perpendicular Lines and Perpendicular Sides of Polygons.

**Lesson Content**In this lesson the pupils will investigate intersection of straight lines,perpendicular lines and perpendiculars sides of Polygons. The model comes as surprise while learning new concepts and revising previously learnt concept.

**Prior knowledge**.The concepts of Angle, Right Angle,Square and Pentagon

**Materials**Measuring Tool, origami sheets 15×15 cm.

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#### Perpendicular and parallel straight lines 2 2/2

**Lesson Aims**During the folding process the pupils will identify parallel and perpendicular lines.

**Name of Model**A dress.

**The Lesson Structure**According to the curriculum.

**Lesson content**This is the second lesson on parallel and perpendicular lines following the prepatory lesson on parallel and perpendicular lines-1 1/2. In this lesson will identify aparallel and perpendicular lines in other situations. The final model will be a surprise for the pupils and at the same time learning new concepts and revising previously learnt concepts.

**Prior Knowledge**The concepts of angle,straight angle and square.

To enter the rate you need to purchase the appropriate lessons package