the take down and assembly is a snap once you have done it a few times.
1) first off pull your slide back so the small rounded cut on the left of the slide lines up with the slide lock. push the pin end of the slide lock from the right to the left and the slide lock should come free of the pistol frame. this will also free the recoil spring guide and spring.
2) take the receiver (lower) and with the hammer in the cocked position move your safety lock to the middle of it's range of movement and it should come free of the pistol frame.
3) ease the hammer down to the uncocked postion and push the hammer pin from right to left and out of the frame, this will free the plunger tube detents and spring as well.
4) push the mainspring housing pin out of the frame from right to left and remove housing, grip safety and sear spring.
5) push the sear pin ( near hammer pin) from right to left and out of the frame. this will free the sear and disconnector and they will drop out.
6) mag catch is removed by pushing to the approx 1/2 way point and using the middle leaf of your sear spring, turn the small screw that is the mag catch lock. the mag catch should pull free to the right.
7) with mag catch removed, trigger should slide right out rearward.
slide is pretty staright forward, push in your firing pin from the rear and firing pin stop can be slide down and out of slide, freeing firing pin and spring, extractor needs to be pried rearward and out of slide.
to remove barrel, push the recoil spring plug, under muzzle, inward and rotate the barrel bushing and it will slide forward and away from the slide. you can now slide the barrel forward and out of the slide.
putting it back together with proper sear disconnector placement is the part you may have trouble with without a detailed diagram of how these two parts operate in correlation to the hammer.
Note*** all pins must be removed from the left side if you are looking at the frame from the rear, pushing them from the right hand side., mainspring housing pin at bottom rear of frame is the only exception
and it can be a bit frustrating at first( well as a child anyway 
