This week we will be focussing on utilizing a wide aperture in our photos.  Using a wide aperture is what gives the beautiful blurryness of your background while your subject remains in focus.  If you're using a DSLR, use the lowest f stop on your lens.  A low f stop (1.8, 2.0, etc) is what is meant by a wide aperture. If you use a phone for your photos try using portrait mode on your phone.  Leave some distance between your subject and the background and you should be able to create the same effect.    

I shot this leaf with a f stop of 3.2.  The leaf is in focus but the background is blurry.  The circles of light showing through is what is known as Bokeh.  In this photo the colours in the subject and the background jibe together nicely.  

If you need further clarification you can find lots of articles on the internet about using a wide aperture and the bokeh effect. I'm looking forward to seeing your results.