Blog
Why is a rainbow curved? Why does a magnet stick to the fridge but not to wood? Short, sourced, clear articles.
In a petrol engine the piston goes down and up while the crankshaft turns twice, completing the intake, compression, power and exhaust strokes. On an engine cut in half, we explain the crank and rod, the camshaft that runs the valves, the compression ratio and how a diesel differs.
10 min read
A fridge does not make cold; it takes heat from inside and carries it out of its back into the room. We meet the compressor, the condenser, the capillary tube and the evaporator one by one and follow the cycle in which the refrigerant takes in heat as it boils and gives it out as it condenses.
13 min read
The moment you tap a link, the page is split into hundreds of small packets; they travel by different paths, sometimes arrive out of order, and lost ones are sent again. We explain DNS, IP addresses, routers, TCP and delay with a sorting plant you can play with.
11 min read
An exit ticket is a quick assessment tool where students answer a short question in writing before the lesson ends. How do you prepare one, which questions work, how do you read them in three minutes and how do you use them for the next lesson? Examples and research basis.
6 min read
Scaling up a recipe, finding a distance on a map and working out travel time all rest on the same two ideas: direct and inverse proportion. How do you tell them apart, and when do you multiply and when divide? Everyday examples and common mistakes.
5 min read
A steel ship weighing thousands of tonnes floats, while a stone that fits in your palm sinks. The answer is not weight but density. We explain what density is, Archimedes' principle, why ships do not sink, and a safe egg experiment you can try at home.
7 min read
Solving a wrong question and moving on carries the mistake into the next exam. What goes in a mistakes notebook, how do you separate kinds of errors, and when do you return to them? A research-based method for paper and for Kuazara's mistakes notebook.
6 min read
A simulation on the board stays a show if students only watch. A 40-minute lesson flow with prediction, pair talk, a turn at the board, explanation and a short close, illustrated with Kuazara's friction lesson.
6 min read
Aristotle said heavier objects fall faster; Galileo disagreed; in 1971 an astronaut dropped a hammer and a feather together on the Moon. The story of free fall, air resistance and a safe paper-and-book experiment you can do at home.
6 min read
Is it hot in summer because we are closer to the Sun? Do plants take their food from the soil? Misconceptions are not random mistakes but regular ideas born of everyday experience. We explain six common examples and the methods that support a move to the scientific idea.
7 min read
First a prediction, then an observation, finally an explanation. The Predict-Observe-Explain (POE) method makes students' intuitions visible and turns a wrong prediction into part of the learning. We explain why it works and how to use it in class, with a pendulum and an ice example.
7 min read
About 78% of the air is nitrogen, yet plants cannot use it directly. Legumes such as chickpeas and lentils get around this with bacteria in their root nodules. We explain how the partnership works, what crop rotation is and how it differs from fertiliser, limits included.
6 min read