Lesson videos

Lesson videos, explained on a whiteboard

Short whiteboard videos on school topics, made with KolaVid. Each one comes with its full transcript, and you can make your own version for your class in a few minutes.

Life skills & Business

• How to Budget Your Money

  What a budget is, income and expenses, needs and wants, saving first, and a worked example: Leo plans his weekly money for lunches, fun and savings.

Maths

• The Pythagorean Theorem

  Right-angled triangles, the hypotenuse and a² + b² = c², with a worked example: sides of 3 cm and 4 cm give a hypotenuse of 5 cm.

• What Are Fractions?

  What a fraction means, equal parts, the numerator and the denominator, and a worked example: finding three quarters of 20.

Science

• How Photosynthesis Works

  How plants turn light, water and carbon dioxide into glucose and oxygen, step by step inside the leaf, with a worked example of the molecules.

• The Water Cycle

  Evaporation, transpiration, condensation and precipitation explained with a puddle that becomes rain, plus groundwater, ice and why water never disappears.

• Why Do We Have Seasons?

  Why summer and winter happen: Earth's tilted axis, direct and slanted sunlight, and why the two hemispheres have opposite seasons.