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| ====== [[Introduction to quadrilaterals]] ====== | | ====== [[Introduction to quadrilaterals]] ====== |
| + | This activity explores formation of a quadrilateral and elements related with the shape. |
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| ======[[Identifying quadrilaterals]]====== | | ======[[Identifying quadrilaterals]]====== |
| + | This is an exploration into quadrilaterals. A specific type of quadrilateral can be selected with the check boxes, and any blue dots on each quadrilateral can be dragged to change the shape. |
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| ====== Concept 3: Types of quadrilaterals ====== | | ====== Concept 3: Types of quadrilaterals ====== |
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| ====== [[Quadrilaterals "I have - Who has?"|"I have - Who has ?"]]====== | | ====== [[Quadrilaterals "I have - Who has?"|"I have - Who has ?"]]====== |
| + | A hands on group activity that helps in identifying and building vocabulary related to quadrilaterals. |
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| ====== [[Venn diagrams of quadrilaterals]] ====== | | ====== [[Venn diagrams of quadrilaterals]] ====== |
| + | Classifying quadrilaterals based on their properties and identifying related quadrilaterals with ven-diagram. |
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| ==== Concept 2: Properties of quadrilaterals ==== | | ==== Concept 2: Properties of quadrilaterals ==== |
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| ====== [[Angle sum property of a quadrilateral]]====== | | ====== [[Angle sum property of a quadrilateral]]====== |
| + | Showing the sum of angles of a quadrilaterals by placing the angles of the quadrilateral adjacent to each other with a hand on activity. |
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| ====== [[Sum of the interior angles of a quadrilateral]] ====== | | ====== [[Sum of the interior angles of a quadrilateral]] ====== |
| + | The sum of the measures of the angles in any quadrilateral is 4 right angles. |
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| ====== [[Sum of angles at point of intersection of diagonals in a quadrilateral]] ====== | | ====== [[Sum of angles at point of intersection of diagonals in a quadrilateral]] ====== |
| + | A diagonal is the line segment that joins a vertex of a polygon to any of its non-adjacent vertices. This two diagonals of a quadrilateral form angle, this activity explores property of these angles. |
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| ====== [[Area of a quadrilateral]] ====== | | ====== [[Area of a quadrilateral]] ====== |
| + | A diagonal divides a quadrilateral into 2 triangles. Understanding area of a quadrilateral in terms of triangles is done with this activity. |
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