#### Perpendicular Line

• Lesson Aims
• Pupils will recognise perpendicular lines and draw perpendicular lines.

• Name of Model
• The swimming fish.

• The Lesson Structure
• The measuring tool,Composition and Decomposition of Shapes, Polygons 3,Perpendicular  lines and sides of polygons.

• Lesson Content
• In this lesson the pupils will investigate perpendicular and intersecting lines. At the conclusion of this lesson the final model will be a surprise while learning new concepts and revising previously learnt geometrical concepts.

• Prior knowledge
• Angles,right angle,sides of a polygon.

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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 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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#### 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 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 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.

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#### COMPARISON OF POLYGON AREAS 3/3

• Lesson Aims
• Recognition of the concept area by direct comparison of shapes.
• Comparison of area size by congruency and decomposition of shapes.
• Comparison of areas using a basic shape.
• Decomposing shapes in order to find areas of composite shapes.
• Name of Model
• Bookmark

• Lesson Structure
• According to curriculum

• Lesson Content
• Composing new polygons from a basic triangle shape and comparing areas in relation to the area of the basic triangle shape.

• Materials
• 3 Origami sheets 15 cm x 15 cm.

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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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#### CALCULATING THE PERIMETER AND AREA OF A RECTANGLE.

• Lesson Aims
• The pupil will learn the measurement units cm and square cm using the units to measure perimeter and area of shapes.
• The pupil will learn how to computate perimeter and area of a rectangle.
• Computing perimeter and area of composite shapes made from rectangles.
• Computing of areas of objects in the environment.
• Computing maximum areas of shapes with given perimeter.
• Name of Model
• The puppy on the fence.

• Lesson Structure
• According to curriculum.

• Lesson Content
• Using square grid paper to cut polygons of 36 square cm area and investigating perimeters of these shapes.

• Materials
• 2 sheets of squared grid origami paper 12cm x 12cm

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#### Rotational symmetry 1/2

• Lesson Aims
• Identify two shapes as congruent after a rotation.
• Identify which shapes  are congruent as a result of reflective or rotational symmetry or both.
• Identify the shapes with rotational symmetry of various orders.
• Identify using activities to identify propeties of symmetry in different shapes.
• Model name
• A puppy

• Lesson structure
• According to the curriculum.

• Lesson content
• The folding process at different stages enables the pupil to learn about the concept of rotational symmetry together with the concept of reflective symmetry (not formal definitions). On completing the final surprising model the pupil can revise previously learnt concepts and review the new concepts that have been learnt in this lesson.

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#### CLASSIFICATION OF PYRAMIDS

• Lesson Aims
• Investigating pyramids.
• Investigating the faces,edges and vertices of pyramids.
• Folding envelopes of pyramids.
• Name of Model
• Envelopes of triangular,square and pentagonal pyramids.

• Lesson Structure
• According to curriculum.

• Lesson Content
• Folding and assembling  envelopes of  triangular,square and pentagonal pyramids.Listing faces,edges and vertices of pyramids.

• Prior Knowledge
• Quadrilaterals and polygons.

• Materials
• 5 origami sheets 15cm x15 cm.

Worksheet on the subject of pyramids

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#### MEASUREMENT-DIRECT COMPARISON AND NON-STANDARD UNITS 1/3

• Lesson Aims
• Pupils will investigate measurement by direct comparison and by non-standard units.
• Pupils will compare lengths of a certain object.
• Pupils use the measurement tool as a non-standrad unit for measuring lengths.
• Name of Model
• A finger snake

• Lesson Structure
• According to curriculum.

• Materials
• Origami sheets 15cm x15 cm 