Heuristic and heuristics Heuristic is an adjective. Means '(o | Live English

Heuristic and heuristics

Heuristic is an adjective. Means '(of a method of teaching) allowing students to learn by discovering things themselves and learning from their own experiences rather than by telling them things'

Heuristics is a noun. Means 'a way of solving problems by discovering things yourself and learning from your own experiences'

Do not mix them up!

Aslo, what is the difference between economic, economics and economical?

Economics is the only noun among them. Means 'the way in which trade, industry, or money is organized, or the study of this'. So economics is a science.

We use economic to mean ‘related to trade, industry or money’:
The economic forecast for next year is not good.
The President spoke mostly about economic policy.

We use economical to mean ‘not using a lot of money’:
Hybrid cars are very economical. (They do not cost a lot of money to run.)
Solar energy for your home is expensive in the short term but it is more economical in the long term.