Khan Academy
Khan Academy: Intro to Quadrilaterals
Sal Khan discovers attributes and features of four-sided shapes, including parallelograms, rhombuses, rectangles, and squares. [8:06]
Khan Academy
Khan Academy: Measuring Rectangles With Different Unit Squares
Sal finds area of a rectangle with different sized units.
Khan Academy
Khan Academy: Transitioning From Unit Squares to Area Formula
Lindsay finds the area of a rectangle both by counting unit squares and multiplying side lengths.
Other
Corbettmaths: Names of Quadrilaterals Video 2
Video tutorial discusses 6 types of quadrilaterals: square, rectangle, rhombus, parallelogram, trapezium, and kite. [3:21]
Expansion Learning
Expansion Learning: Shape Basics (Part Three)
Video provides students with an explanation of the basic shapes of hexagon, trapezoid, and parallelogram.
Expansion Learning
Expansion Learning: Basic Shapes (Part One)
Video provides students with an explanation of the basic shapes of square, rectangle, triangle, and circle.