Before first solo i try do as many emergencies as possible and sign it off in the students log book and records.
Example, Steering/brake fail, Efato straight ahead and crosswind due local limitations, go arounds, balloon, bounce, Engine fail from downwind to a cross runway, airspeed indicator, altimeter, rpm gauge failure. Flapless/Stuck flap on go around, radio failure, stuck throttle procedure(good way to introduce glide app), orbit, extend downwind.
Students usually start to 'Buck up' a bit and switch on when they start to get a bit of variation from simply flogging around the basic circuit, they always say they enjoy the sessions, gives them some confidence that they could possibly cope with these unusual events.
Pilots always say that years ago training was better, rubbish, i was never shown any of the above other than the odd Efato during the 1970's when i trained. Having flown with 10 different instructors over 18 months!