You can make this origami modular star with as many or as few modules as you like... the model pictured and diagrammed is made with 6 modules: so you will need 6 squares of paper to make this model.
But you can add more modules than 6, or have less if you like... the more you add, the more 3-D the star becomes.
Start with your paper coloured side up. Fold in half, then in half again, as shown. Crease well, then open out again.