Tour means visiting places. People travel From place to place for different purpose. Some travel for getting education, some for business, some for entertainment and some for visiting religious places as pilgrims.
Educational Tour or excursion means a tour of the students to a certain place for a certain time for certain purposes.
Educational tour is a part of practical learning . Students learn by reading or listening to teacher and doing very little in the labs in our schools. But in such excursions, students learn by observation. They can see the real objects, people and places.
Students can read in books. But the taste of real visit is far more different and effective than their theoretical study. They can talk to the people : they can ask them bout whatever things they like.
They learn to live in groups . They learnt to face difficulties and accommodate in a different situation. Together, They can experience things.
They may feel freedom while in the tour: but together the students also learn many things informally. They can see innumerable things out of their plan. Students learn many informal things So, educational tour is very important for us.