You can simply create the model by dragging and dropping the blocks from a Simulink Library. In 'Simulink Library Browser' , click on 'New model' and then drag the blocks from the library to the model. You can search for the blocks in the search bar of the library browser.
You can also refer to the following page for some basic simulink tutorials: https://www.mathworks.com/academia/student_center/tutorials/slregister.html?s_tid=ac_sim_tut_til
