Learn how to prove that expressions are equivalent by using diagrams. Review examples and walk through the process of comparing diagrams to determine if expressions have the same value. By using this visual method, students can better...

In this video we will go over 5 examples illustrating how to use the concepts of collinearity and betweenness of points.

SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps.



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This video is an educational lecture that explains the properties of concave lenses, how they form images, and the type of images they create. The video describes the definition of a lens and how it refracts light as it crosses the...

This nugget explains the mathematical expressions derived when an AC voltage is applied to a circuit containing a capacitor,an inductor and a resistor.

In this video we will start going over examples that involve adjacent angles, angle bisectors and angle trisectors.

Covers the tricks to understand circle theorems & know what each theorem states. Also covers the basics knowledge required before solving a Circles theorem.

The video explains how objects can be deformed by applying different types of forces, such as stretching, compression, and bending. It also introduces the concepts of elastic and inelastic deformation and the relationship between force...

This is a lecture on electromagnetic devices, exploring the real-world applications of electromagnets. The video describes how an electromagnet works, with a solenoid and iron core generating a magnetic field when a current is flowing...

This video explains the difference between series circuits and parallel circuits in electronics. It describes the rules that apply to each circuit and how to calculate the total resistance, current, and potential difference in each case....

In this video, the teacher explains how to subtract numbers within 1,000 using an open number line. They review the concept of place value and the relationship between addition and subtraction. The teacher demonstrates how to solve...

This visually confusing tip-to-tail vector addition problem can be solved just like our previous problems. Give your vectors names, draw a vector diagram, break vectors in to components, redraw the vector diagram, create a data table,...

The video explains how an electric current flowing through a conducting wire produces a magnetic field around the wire. The video explores some of the uses of electromagnetism, including electromagnetic lifts used to separate iron and...

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...

This video is a lecture on solenoids and the magnetic field that forms around them. The lecturer explains the concept of magnetic fields and how they can form around conducting wires. They demonstrate how the direction of the current...

The video is a lecture on convex lenses, explaining the way they work to bend and focus light. The speaker defines what a lens is, describes how convex lenses function, explains how to construct a ray diagram with a convex lens, and...

This video is a lecture on magnetic fields. The speaker explains what magnetic fields are, how they look in the regions around magnets, and how to plot them on diagrams. The video also covers how the magnetic fields of two magnets in...

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...

This video explains the process of electricity generation on an industrial level. It describes how a voltage and current can be induced in a conductor by moving it relative to a magnetic field, and compares two types of electricity...

This nugget derive the potential energy of a spring with help of two considered cases-when block of mass streched and when compressed.

In this video, the teacher explains how to use a photographic enlarger to create a print from a negative while maintaining proper proportions. The lesson also covers solving word problems involving dilations using different scale factors.

The video is about osmosis, a type of diffusion in which water molecules move from a dilute solution to a concentrated solution through a partially permeable membrane. The video explains what a partially permeable membrane is and how it...

The video is about the structure of DNA. It explains that DNA is a polymer made up of repeating nucleotide units consisting of a sugar, phosphate, and base. The video also discusses base pairing, in which complementary strands of DNA...

Water commonly exists in three different forms: ice, liquid water, and water vapor. In this video the different phases of water serve as the foundation to teach about solids, liquids, and gases. Other common everyday examples of solids,...