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

A dress.

According to the curriculum.

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.

The concepts of angle,straight angle and square.

• 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.

A heart of symmetry

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

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

• 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.

Bookmark

According to curriculum

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

3 Origami sheets 15 cm x 15 cm.

• 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.

A sweet box.

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

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.

.The concepts of Angle, Right Angle,Square and Pentagon

Measuring Tool, origami sheets 15×15 cm.

• 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.

The puppy on the fence.

According to curriculum.

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

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

• 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.

A puppy

According to the curriculum.

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.

• Investigating pyramids.
• Investigating the faces,edges and vertices of pyramids.
• Folding envelopes of pyramids.

Envelopes of triangular,square and pentagonal pyramids.

According to curriculum.

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

Quadrilaterals and polygons.

5 origami sheets 15cm x15 cm.

Worksheet on the subject of pyramids

• 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.

A finger snake

According to curriculum.

Origami sheets 15cm x15 cm

Investigate pyramids

• Description of a pyramid, number of faces,edges and vertices.
• Recognition of a triangular pyramid and envelope of a pyramid.
• Pyramids with different bases.

Envelope of a triangular pyramid.

First lesson on the topic of 3-D solids.

Pupils will construct a triangular pyramid, investigate the properties of this pyramid, the envelope of this pyramid constructed from triangles and comparison of  the envelope and the solid.

Polygons and triangles.

• Recognizing the concept of volume.
• Recognizing the use of an accepted unit of volume measurement-a cube.
• Recognizing which measurements are necessary for determining the volume of a prism.
• Recognizing that different structures may have the same volume but different heights.

Structures built with cubes.

The pupils will construct two different sized cubes by a folding process. Using these cubes the pupils will measure the volume of a container and reach the understanding that a number representing a volume measurement must relate to the unit of measurement used. Pupils will learn that different structures assembled with the same number of cubes may have different heights.Height measurement alone is insufficient for volume measurement.

Origami sheets of 2 sizes. 10 x 10 cm,15 x 15 cm.