Subject open-popover-icon
EN
How does OnClass work? Support Online now: 679

Theory / Lessons

Subject

Content language

Level

Popular lessons

Sort by:

Other lessons

0
21
Statics: Crash Course Physics #13
  • Physics

Statics: Crash Course Physics #13

The Physics we're talking about today has saved your life! Whenever you walk across a bridge or lean on a building, Statics are at work. Statics is the study of objects when they're NOT accelerating. In this episode of Crash Course Physics, Shini talks to us about stretching, compressing, and springing as they relate to Statics! Also... Game of Thrones.

  • Video
  • Beginner
  • English
Andrei Scherbak
Andrei S.
0
21
Derivatives: Crash Course Physics #2
  • Physics

Derivatives: Crash Course Physics #2

CALCULUS! Today we take our first steps into the language of Physics; mathematics. Every branch of science has its own way to describe the things that it investigates. And, with Physics, that's math. In this episode, Shini talks us through derivatives and how calculus helps us to understand the world around us.

  • Video
  • Elementary
  • English
Andrei Scherbak
Andrei S.
0
20
Summer time
  • English

Summer time

Lesson about summer that you used to have as a child and adult life ones. Visit to Montenegro- prics, problems and perks.

  • Exercise
  • Intermediate
  • English
Darina Gribanova
Darina G.
0
20
Finland
  • English

Finland

In this class we will learn more facts about Finland

  • Theory with exercises
  • Elementary
  • English
Maria  Nekrasova
Maria .
0
20
Children's literature test
  • Literature

Children's literature test

Do you want to test your book knowledge for children’s books? If so, ask yourself, have you ever read Friday Barnes, Sophie Mouse, Critter Club, Greetings from Somewhere, or Imagination Station? If you have, then you will definitely have a good time with this quiz.

  • Exercise
  • level.high school
  • English
Andrei Scherbak
Andrei S.
0
20
Viruses
  • Biology

Viruses

Explore the lytic and lysogenic viral replication cycles with the Amoeba Sisters! This video also discusses virus structures and why a host is critical for viral reproduction. Expand details for table of contents and further reading suggestions! This updated video replaces our older virus video

  • Video
  • Beginner
  • English
Andrei Scherbak
Andrei S.
0
20
"How to Keep Track of the Kids"
  • English

"How to Keep Track of the Kids"

Do you know the English expression "to keep track of" something? If you "keep track of" something, you always have a good, up-to-date knowledge of it. Here are some examples to help you understand the way we use the expression.

  • Podcast
  • Pre-Intermediate
  • English
Eugeniia Klimutina
Eugeniia K.
0
20
Torque: Crash Course Physics #12
  • Physics

Torque: Crash Course Physics #12

What is torque? This is one of those things that you may have heard about in passing but never really understood. In this episode of Crash Course Physics, Shini sits down with us to discuss what torque is, how it works, why it works, and what it all has to do with this thing called "Moment of Inertia."

  • Video
  • Beginner
  • English
Andrei Scherbak
Andrei S.