Html.Kendo() is the extension method used when you create and Kendo UI project using the MVC wrappers, while Html.Telerik() is part of another Telerik product, that is different from Kendo UI. Are you sure you have downloaded the correct bundle?
As a new user I would suggest you to take a look at the Getting started
section of the website and take a look at the examples that we attached in the Kendo UI bundle. You will find them when you unzip the package and go to Wrappers/aspnetmvc/Examples
Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI