Entity framework model first approch

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entity-framework

Dear all,

i am new to mvc, and i am using entity framework model first approach to handle the database, i know i can use the entity framework other than the mvc like asp.net or in console application, Right , Now when i am using model first in console application it adds more objects in solution explorer then when i am using it in mvc 3 application, the main difference is Model1.tt and Model1.Context.tt in mvc 3 application it adds Model1.tt object and inside the Model1.tt it creates all the class corresponding to the entity i have created, and the model1..cs
Please could anyone make me understand, why this difference between using entity framework model first in in console application and in mvc 3 application, and about the,

1.Model1.Context.tt

2.Model1.tt
3.All the classes inside the Model1.tt

Your help will highly appreciated, pleas if anyone can help me.