To build the tutorials follow the Build Instructions and make sure that MITK_BUILD_EXAMPLES is checked/set to ON.

The tutorial source files can be found in the Examples\Tutorial\ subdirectory of the source tree. The tutorial executables are in the bin\Release\ or bin\Debug\ subdirectory (Windows) respectively the bin\ subdirectory (Linux/Mac) of the binary tree after compilation (called MitkStepX, corresponding to the tutorial step).