PBS
What are Numbers Made of?
In the physical world, many seemingly basic things turn out to be built from even more basic things. Molecules are made of atoms, atoms are made of protons, neutrons, and electrons. So what are numbers made of?
Curated Video
Constructing Segments and Angles
In this video, you will learn how to construct congruent line segments and congruent angles. To complete constructions in mathematics, you will need only two tools: a compass and a straightedge.
Let's Tute
Constructing Tangents and Chords from an External Point of a Circle
The video explains how to construct roads to reach different gates in a circular vegetable garden. It also teaches how to identify tangents and chords and construct tangents using geometry. The video provides step-by-step instructions...
Let's Tute
How to Divide a Line Segment in a Given Ratio
The video teaches how to divide a line segment in a given ratio using the example of dividing line AP in the ratio 3a:2. It explains how to locate 5 points and draw lines to divide the segment accurately. The method is useful for solving...
Let's Tute
Understanding the Pythagoras Theorem through an Activity
This video explains the Pythagorean Theorem through an activity in which squares are constructed on each side of a right triangle and then cut out and rearranged to show that a^2 + b^2 = c^2. The activity provides a hands-on approach to...
Let's Tute
Triangles: Pythagoras Theorem Derivation
In this video, the teacher explains how to prove the Pythagoras theorem using the concept of similar triangles. They break down the steps in a clear and concise manner, making it easy for students to understand and follow along.
Let's Tute
Constructing Perpendicular Bisector of a Line Segment
In this video you will learn How to construct tangents to a circle from a point outside a circle - Geometric Constructions
AFP News Agency
CLEAN: Rio faces an uphill struggle to be ready for 2016 Olympics
CLEAN: Rio faces an uphill struggle to be ready for 2016 Olympics
Curated Video
Remains still found in rubble a year after quake, reconstruction slow
Port-au-Prince - 7 January 2011
1. Wide of men hired to remove rubble from a building largely destroyed by the earthquake in downtown Port-au-Prince
2. Various of men removing rubble from front of building
3. Close up of rubble
4. Wide...
AFP News Agency
CLEAN: Rio faces an uphill struggle to be ready for 2016 Olympics
CLEAN: Rio faces an uphill struggle to be ready for 2016 Olympics
AFP News Agency
CLEAN : Football: FIFA on defensive over Qatar lab
CLEAN : Football: FIFA on defensive over Qatar lab
AFP News Agency
CLEAN : 500 year old inhabited French bridge set for repair works
In Landerneau in the Finistere department of France Rohan Bridge is one of the last inhabited bridges in Europe (Footage by AFPTV via Getty Images)
PBS
Career Connections | Construction Worker
Like working with your hands? Like building things? Like tools? Think hard hats are cool? Check out a short video that details the rewards of working in construction.
PBS
Career Connections | Construction Manager
Don a hard hat and grab an iPad; both are essential tools for construction managers. A short video details the education, skills, and tools required for those interested in a career in this fast-growing field.
PBS
Career Connections | Architect Sports Planner
Part of the thrill of sports is getting to see competition in person at an athletic facility or stadium. Find out what it takes to become a sports venue architect with a short video that features an architect who designs such...
Corbett Maths
Construct a 90 Degree Angle
There is more than one way to create a 90-degree angle. Using a compass and a straightedge, the video shows two ways to construct a right angle. The ways include using perpendicular bisectors and circle theorems. To wrap up, pupils...
Corbett Maths
Construct a 45 Degree Angle
Create a 45-degree angle without bisecting an angle. A video shows a method to construct a 45-degree angle without needing to bisect a right angle. By constructing an isosceles right triangle, the presenter constructs a 45-degree angle...
Corbett Maths
Construct a 30 Degree Angle
Split it down the middle. Using the tools of geometric construction, the video shows two different methods of constructing a 30-degree angle. The first method bisects an angle of an equilateral triangle. The second uses the diagonal of a...
Corbett Maths
Angle Bisector
Cut it in half with a compass and straightedge! Using construction tools, a video shows how to create an angle bisector. The presenter points out what it means to bisect an angle in terms of the measure and distances from the sides of...
Corbett Maths
Perpendicular from a Line to a Point
Take steps in the right direction. With a short demonstration, a video shows the steps to construct a perpendicular from a line to a point. Using a protractor, the narrator confirms the resulting construction is perpendicular, and then...
Corbett Maths
Perpendicular Through a Point on a Line
Use one construction to complete a second. The short video shows how to incorporate the steps of a perpendicular bisector to create a perpendicular to a point on a line. With their own straightedges and compasses, classmates then...
Corbett Maths
Perpendicular Bisector
Where should the statue be located? The resource explains how to use a compass and straight-edge to construct the perpendicular bisector of a line segment. Using an exam question, the narrator models how to solve an application problem...
Real Engineering
Why Are I-Beams Shaped Like an I?
There's a reason why they're called I-beams. A short Real Engineering video describes why I-beams are in the shape of an I. It considers how the beam achieves maximum bending load with the least amount of material.