yesterday i sat for goegraphy class, there was something like great bear, north star, constellation of 7 stars, i could not understand all this stuff, anyone plz has answer of querry??

The Great Bear, aka the Big Dipper, more properly known as Ursa Major, is a Northernly constellation of 7 stars. The front two stars of the dipper are called the pointers, because if you extend the line joining them it will point to the last star in the handle of the Little Dipper, aka the Small Bear, or Ursa Minor (another 7 star constellation). This star, named Polaris, is the North star.

Ursa Major = Great bear in latin.

No electronic entertainment meant that the sky was the only thing to look at at night. No light pollution meant that it was much easier to see a lot of stars, see images in them, and make up stories about them.