Internet, cell phones, Facebook and Twitter... it's clear that technology plays a big role in many students' lives. But in many classrooms -- particularly in schools with limited resources -- teachers still rely on paper, pens, chalk...

Through real life examples and animation, this video shows students that when an object is symmetrical, it has the property of symmetry and that the line of symmetry is the line of reflection. Students will come to understand that many...

In this video, the teacher explains how to differentiate between a pentagon and a hexagon and determine if they are regular or irregular. The teacher emphasizes the importance of understanding the vocabulary associated with shapes and...

In this series of programs students are introduced to perimeter and area. Easy-to-understand examples enable students to understand the process by which perimeter is calculated. The area of rectangles, parallelograms, and triangles is...

In this video, students learn how to identify and sort quadrilaterals at the Shape Warehouse by examining their attributes. Through visual examples and explanations, students are guided in recognizing the characteristics of...

What is calculus? What kinds of problems led to the development of calculus, and how far back does it go? Let's learn some math history!

In this video, students are taught how to find the perimeter of polygons with more than four sides by adding the side lengths. The teacher emphasizes the difference between perimeter and area, and highlights common mistakes students...

In this video, students learn how to identify a rhombus by its attributes. The video explains that a rhombus has four congruent sides, opposite sides that are parallel, and opposite angles that are equal.

Lightning is spectacular, from a distance. It's nature's way of transferring electricity within the sky, or between the sky and the ground. When lightning is nearby, it is a threat to safety. People are struck by lightning, in many cases...

In this video, students will learn how to determine the relationship between quadrilaterals by examining their sides. The video explains the concepts of regular and irregular polygons, as well as the importance of considering the number...

In this video, the teacher explains how to identify line symmetry in irregular polygons. They discuss the three options for line symmetry - horizontal, vertical, and diagonal - and emphasize the importance of having matching parts when...

Alan kite surfs, skateboards, bikes, dives, and explores space as he learns about Polygons. These shapes surround Alan in his daily life, and he is so excited to give you a tour of real-world polygons! The smooth beat and positive vibes...

In this lesson, students will learn how to find the volume of geometric solids by using their knowledge of two and three-dimensional shapes, as well as the measures of area and perimeter. They will understand that volume refers to the...

In this video, the teacher explains how to identify different types of quadrilaterals by looking at their attributes. They discuss quadrilaterals with two sets of parallel sides, such as parallelograms, rectangles, squares, and...