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| ==Concept #1. Introduction to polygons and nomenclature.== | | ==Concept #1. Introduction to polygons and nomenclature.== |
| ===Learning objectives=== | | ===Learning objectives=== |
− | # | + | # Lines intersect to form figures. |
− | # | + | # Two dimensional closed figures can be of varied shapes. |
− | # | + | # Plane closed figures with ≥ 3 sides are known as polygons. |
| + | # They can be defined as two-dimensional, closed, plane shapes composed of a finite number of straight sides that meet at points called vertices. |
| + | |
| ==Notes for teachers== | | ==Notes for teachers== |
| ===Activity No # 1. Which polygon am I ? === | | ===Activity No # 1. Which polygon am I ? === |
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| *Prerequisites/Instructions, if any: | | *Prerequisites/Instructions, if any: |
| # The students should know that lines intersect to form figures. | | # The students should know that lines intersect to form figures. |
− | # Polygons can be defines as two-dimensional, closed, plane shapes composed of a finite number of straight sides that meet at points called vertices.
| + | # In other words plane closed figures have atleast 3 sides. |
− | # In other words plane closed figures with ≥ 3 sides are known as polygons . | |
| # The intersecting points of two lines is known as a vertex and the lines are the edges/sides. | | # The intersecting points of two lines is known as a vertex and the lines are the edges/sides. |
| # The student should know the meaning of greek numerals uni, bi, tri ....etc. | | # The student should know the meaning of greek numerals uni, bi, tri ....etc. |