As Evo said, you probably did not complete effects of controls unless it was a full hour trial lesson.
Next lesson will probably be Effect of Controls(2), this normally covers :- secondary effects, effect of trim, effect of power,effect of speed, effect of flap. Lots of trimming practice here!
If you are reading up on lessons it is best to read a lesson ahead, the reason for this is that how fast you learn will dictate what is taught, someone who is a little slow may not get all that lesson done in the time, whearase someone who picks things up a little faster may be introduced to the next lesson whilst heading back.