The pupils  will use the measuring tool for comparison of lengths and identification of right angles.

A measuring tool for comparison of lengths

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

Pupils will identify right angles intuitively using the measuring tool.

Pupils will identify right angles in various orientations.

The measuring tool should be folded  and kept in the pupils workbook at the conclusion of each lesson.

Intuitive  identification  of right angles.

• התלמיד יקפל ויזהה מצולעים לפי תכונות נתונות.
• התלמיד יבנה ויזהה משולשים לפי צלעות וזוויות (מיון כפול).
• התלמיד ישתמש בקיפולי נייר כדי לבנות מצולעים ולחקור את תכונותיהם .

ארנבון על אצבע

מודד,  שיעור הכנה – פירוק והרכבה בנושא מצולעים (ג-ו)

בשיעור זה יחקרו התלמידים את סוגי המצולעים המתהווים במהלך קיפול הדגם. בסיום השיעור מתקבל התוצר הסופי כהפתעה, תוך לימוד מושגים חדשים וחזרה על המושגים שנלמדו בשיעורי ההכנה.

הכרת המושגים: צלעות, קדקודים, צלעות מקבילות, זוויות

• 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.

Line of reflective symmetry 1/2

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 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.

 Polygons.

• 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

The pupils during the folding process will identify polygons according to stated properties. The pupils will learn how to form different polygons with their sheets and investigate the various properties of the folded shapes.

Polygon activity 3 decomposition and composition 1/2

The decomposing and composing activities allow the children to create various polygons during the folding process and with the combination of several triangular folded shapes. With a series of questions and answers during the folding process the pupils are able to deepen their geometric reasoning in a dynamic environment.

      .Concepts of sides and vertices in polygon, Parallels side