science

Kraj

Kraj is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Kraj rather than just read about it. In short: A Kraj (plural: kraje) is the highest-level administrative unit in the Czech Republic and the Slovak Republic. For lack of other English expressions, the Slavic term is often translated as "province", "region", or "territory", although it approximately means "(part of) country", or "(part of) countryside".

Key takeaways

Kraj belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Kraj to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Kraj from memory before moving on to harder problems.

Reference excerpt

A Kraj (plural: kraje) is the highest-level administrative unit in the Czech Republic and the Slovak Republic. For lack of other English expressions, the Slavic term is often translated as "province", "region", or "territory", although it approximately means "(part of) country", or "(part of) countryside". A kraj is subdivided into okresy ("districts"). The first kraje were created in the Kingdom of Bohemia during the reign of Charles IV in the 14th century and they lasted till 1862/68. Kraje were reintroduced in 1949 in Czechoslovakia and still exist today (except for the early 1990s) in its successor states despite many rearrangements. In Russia nine of the 85 federal subjects are called krais (Russian: края, kraya), coequal to oblasts. The toponym Krajina refers to several historical regions in Slavic countries.

Kraje in the Czech Republic

Kraje in Slovakia

Toponymy Kraj is also found as a toponym outside of Czech- and Slovak-speaking areas.

Almaški Kraj, a part of Novi Sad, Serbia Gerovski Kraj, a village near Čabar, Primorje-Gorski Kotar County, Croatia Jovanovski Kraj, a former name of Rotkvarija/Žitni Trg, a part of Novi Sad, Serbia Končarev Kraj, a village near Plitvička Jezera, Lika-Senj County, Croatia Kraj, Pašman, a village in Zadar County, Croatia Kraj, Split-Dalmatia County, a village in Dicmo, Croatia Kraj, Primorje-Gorski Kotar County, a village near Mošćenička Draga, Croatia Kraj Donji, a village near Marija Gorica, Croatia Kraj Drage, a village near Sveta Nedelja, Istria County, Croatia Kraj Gornji, a village near Marija Gorica, Croatia Rašića Kraj, a hamlet near Vranići, Serbia Srednji Kraj, a village near Barajevo, Serbia

Anthroponymy Kraj is also found as a surname. Notable people with the name include:

Rudolf Kraj (born 1977), a Czech boxer

Other uses Kraj (song), 2009 single by the Macedonian singer Karolina Gočeva

See also Bohemia § Historical administrative divisions Federal subjects of Russia Krajina Semasiological map for *krajь

References

External links (in Russian) etymology of the word

Worked examples

Example 1 — a first encounter with Kraj

Start with the simplest possible case. Write down what Kraj claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Kraj before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Kraj ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Kraj

In research: Kraj appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Kraj in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Kraj is common in secondary-school and first-year university syllabi. It links to neighbouring topics Regions of Slovakia, Regions of the Czech Republic, Slovak words and phrases, so understanding it makes those chapters shorter.
In everyday life: Look for Kraj outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Kraj in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Kraj means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Kraj out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Kraj in simple terms?

Why does Kraj matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Kraj?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Kraj.