Grade 4

Line of reflective symmetry 2/2

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

     

Themes: Grades > Grade 4

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

DIAGONALS AND LINES OF SYMMETRY OF QUADRILATERALS 1/2

DIAGONALS AND LINES OF SYMMETRY OF QUADRILATERALS 1/2

  • Lesson aims
    • The pupils will study diagonals of polygons.
    • The pupils will study lines of reflective symmetry in quadrilaterals and polygons.

     

  • Names of model.
  • Puppy and child.

  • Lesson content
  • Pupils will recognize and investigate diagonals formed during the folding process. Pupils will discover which lines of reflective symmetry of a square are also diagonals. Several geometric terms will be revised as well as studying new concepts. There is a following up lesson 2/2 to conclude these concepts.י

  • Previous knowledge
  • Opposite vertices, different types of angles, polygons and quadrilaterals.

Themes: Grades > Grade 4

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

DIAGONALS AND LINES OF SYMMETRY IN POLYGONS 2/2

DIAGONALS AND LINES OF SYMMETRY IN POLYGONS 2/2

  • Lesson Aims
    • Pupils will study the concept of diagonal and  draw diagonals in various polygons.
    • Pupils will learn that diagonals are not only vertical or horizontal and that a diagonal can be drawn outside the polygon.
  • Name of Model
  • Puppy and child.

  • Lesson Content
  • Pupils will recognize and investigate diagonalsduring the folding process. Pupils will discover which lines of reflective symmetry are also diagonals of a polygon. Thsi lesson reviews the concepts of diagonals of a polygon and lines of reflective symmetry.

  • Previous knowledge
  • Adjacent and opposite vertices of a polygon.Lines of reflective symmetry.

Themes: Grades > Grade 4

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

DIAGONALS AND LINES OF SYMMETRY IN POLYGONS 2/2  Copy

DIAGONALS AND LINES OF SYMMETRY IN POLYGONS 2/2 Copy

  • Lesson Aims
    • Pupils will study the concept of diagonal and  draw diagonals in various polygons.
    • Pupils will learn that diagonals are not only vertical or horizontal and that a diagonal can be drawn outside the polygon.
  • Name of Model
  • Puppy and child.

  • Lesson Content
  • Pupils will recognize and investigate diagonalsduring the folding process. Pupils will discover which lines of reflective symmetry are also diagonals of a polygon. Thsi lesson reviews the concepts of diagonals of a polygon and lines of reflective symmetry.

  • Previous knowledge
  • Adjacent and opposite vertices of a polygon.Lines of reflective symmetry.

Themes: Grades > Grade 4

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

DIAGONALS AND LINES OF SYMMETRY IN POLYGONS 2/2  Copy

DIAGONALS AND LINES OF SYMMETRY IN POLYGONS 2/2 Copy

  • Lesson Aims
    • Pupils will study the concept of diagonal and  draw diagonals in various polygons.
    • Pupils will learn that diagonals are not only vertical or horizontal and that a diagonal can be drawn outside the polygon.
  • Name of Model
  • Puppy and child.

  • Lesson Content
  • Pupils will recognize and investigate diagonalsduring the folding process. Pupils will discover which lines of reflective symmetry are also diagonals of a polygon. Thsi lesson reviews the concepts of diagonals of a polygon and lines of reflective symmetry.

  • Previous knowledge
  • Adjacent and opposite vertices of a polygon.Lines of reflective symmetry.

Themes: Grades > Grade 4

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

Rotational symmetry 2/2

Rotational symmetry 2/2

  • Lesson aims
  •  

    • The pupils will identify the properties of reflective and rotational shapes of various quadrilaterals.
    • The pupils will discover the order of symmetry of various quadrilaterals.
    • The pupils will identify the quadrilaterals having reflective or rotational symmetry  or both symmetries.
    • The activities will aid the pupil in understanding the concept of rotational symmetry.
  • Name of Model
  • A puppy similar to the model of lesson 1/2 on rotational symmetry.

  • 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 in additional quadrilaterals.

Themes: Grades > Grade 4

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

Perpendicular line and perpendicular side of polygon

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.

Themes: Grades > Grade 4

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

Perpendicular and parallel straight lines 1 1/2

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.

Themes: Grades > Grade 4

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

השוואת שטחים במצולעים  Copy

השוואת שטחים במצולעים Copy

  • מטרת הפעילות
    • הכנת התלמידים לקראת נושא המדידות.
    • השוואת שטחים על ידי כיסוי ופירוק.
    • השוואת שטחים של צורות מורכבות על ידי חלוקתם.
  • שם הדגם
  • סימניה לספר

  • שם היוצר/ת
  • מירי גולן

    © כל הזכויות שמורות למרכז הישראלי לאוריגאמי

  • רצף מומלץ
  • מומלץ ללמד לפי הרצף המופיע באתר (בהתאם לתכנית הלימודים). ​

  • על השיעור
  • פעילות בהרצה 

    התלמידים ילמדו שצורות שוות שטח אינן בהכרח שוות היקף.

    במהלך השיעור התלמידים יקפלו את הנייר לצורות שונות ויבחנו את המידות והצורות השונות. בסוף השיעור הילדים יגיעו למסקנה שמידת השטחים אינה תלויה בצורתה. התלמידים יעבדו בזוגות וגם בקבוצות. ובסוף הפעילות תתקבלנה סימניות לספר.

    משך זמן פעילות מומלץ: 45 דקות

    * משך זמן הפעילות נתון לשיקול המורה, ויכול להשתנות בהתאם לגודל ואופי הכיתה.

Themes: Grades > Grade 4

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

CALCULATING THE PERIMETER AND AREA OF A RECTANGLE.

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

Themes: Grades > Grade 4

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