883
edits
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From Karnataka Open Educational Resources
→Introduction to quadrilaterals
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====== [[Introduction to quadrilaterals]] ======
====== [[Introduction to quadrilaterals]] ======
+This activity explores formation of a quadrilateral and elements related with the shape.
======[[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.
====== 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.
+
====== [[Venn diagrams of quadrilaterals]] ======
====== [[Venn diagrams of quadrilaterals]] ======
+Classifying quadrilaterals based on their properties and identifying related quadrilaterals with ven-diagram.
==== 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.
====== [[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.
====== [[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.
====== [[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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