EN
How does Onclass work? Support Online now: 399

Image / Lessons

Popular lessons

Other lessons

0
22
Vectors and 2D Motion: Crash Course Physics #4
  • Physics

Vectors and 2D Motion: Crash Course Physics #4

Continuing in our journey of understanding motion, direction, and velocity... today, Shini introduces the ideas of Vectors and Scalars so we can better understand how to figure out motion in 2 Dimensions. But what does that have to do with baseball? Or two baseballs?

  • Video
  • Beginner
  • English
Andrei Scherbak
Andrei Scherbak
0
22
"Do you want to be a spy"
  • English

"Do you want to be a spy"

Intelligence. What does it mean? The word "intelligence" has two main meanings in English. First, it can mean "mental capacity" – if you are intelligent, you can think clearly and rationally, for example. But "intelligence" also means information. For example, we can talk about "market intelligence" – and that means, information about what is happening in a market, such as the stock market or the international oil market. Very often, we use "intelligence" to mean information which is secret, or which has been obtained illegally.

  • Podcast
  • Pre-Intermediate
  • English
Eugeniia Klimutina
Eugeniia Klimutina
0
22
Sound: Crash Course Physics #18
  • Physics

Sound: Crash Course Physics #18

We learn a lot about our surroundings thanks to sound. But... what is it exactly? Sound, that is. What is sound? And how does it travel? And what is this Doppler Effect that we've heard so much about? In this episode of Crash Course Physics, Shini goes over some of the basics (and some of the not so basics) of the Physics of Sound.

  • Video
  • Beginner
  • English
Andrei Scherbak
Andrei Scherbak
0
22
"A Gruesome Discovery"
  • English

"A Gruesome Discovery"

Today we visit the Channel Islands. The Channel Islands are a group of islands in the English Channel, close to the north coast of France. But they are not part of France. And they are not really part of Britain either. The British Queen is also ruler of the Channel Islands, and the British government looks after their defence and foreign affairs. But in other respects, the islands are tiny independent states – they have their own Parliaments and governments and their own laws. Until about 100 years ago, most people on the islands spoke a dialect of French, but today the main language is English.

  • Podcast
  • Pre-Intermediate
  • English
Eugeniia Klimutina
Eugeniia Klimutina
0
22
Today's podcast is by Mark. He is a football coach
  • English

Today's podcast is by Mark. He is a football coach

Hello everyone. A few years ago, I moved from England to New Zealand to coach football to children in Auckland, the biggest city in New Zealand. I'd like to tell you about the differences between football in England and football in New Zealand. I grew up in London in England and spent many hours as a child playing football with my friends in the park. We used to play football after school and at the weekend, and often all day long in the school holidays. One of the first things I noticed when I moved to New Zealand was that very few children play football after school or at the weekends. Even on a sunny day in New Zealand, many of the parks will be completely empty! In cities in England, children will arrange to meet their friends for a game in the park, but in New Zealand the children only ever play football when it's organised for them by their parents or by their team coach. If you've ever played football, you will know that it takes many hours of practice to get skilful and make the ball do anything you want it to. Sometimes it can take lots and lots of mistakes before a child gets it right! In New Zealand, children don't spend a lot of time playing football on their own so they don't try new things and make mistakes. Instead they spend an hour or two a week being told what to do by a parent or a coach. This means they don't get to make their own mistakes and learn things for themselves. Imagine learning English and never being allowed to make a mistake? It would be very difficult, and not much fun either!

  • Podcast
  • Pre-Intermediate
  • English
Andrei Scherbak
Andrei Scherbak
0
22
How the Brain Works Part 1 (UCLA)
  • Biology

How the Brain Works Part 1 (UCLA)

These brief videos provide an introductory appreciation of how we learn skills and information, move, think, feel, speak and remember. They are brought to you by the UCLA Brain Research Institute and by Bruce H. Dobkin, MD, who directs the neurorehabilitation program in the Department of Neurology at UCLA. The videos especially aim to reach out to students in grade school to stir their interest, and to people with disabilities in walking, using an affected upper extremity, and loss of memory from neurological diseases such as stroke, brain trauma, tumors, multiple sclerosis, cerebral palsy, Parkinsons, and Alzheimers disease.

  • Video
  • Beginner
  • English
Andrei Scherbak
Andrei Scherbak
0
22
The New York Graphic Design Scene in the 1970s
  • Other...

The New York Graphic Design Scene in the 1970s

Graphic design has evolved over the years, often influenced by societal and cultural changes. It can take inspiration from music, art, fashion and culture. Graphic design in the 70s provided plenty of inspiration over the years. There’s been a recent revival thanks to many consumers enjoying retro designs. There was a lot happening in the 70s, from diverse pop culture to social movements, all of which influenced graphic design in different ways. From punk to postmodernism, there are many things about 1970s graphic design to inspire you today.

  • Video lessons
  • Elementary
  • English
Eugeniia Klimutina
Eugeniia Klimutina