In all fairness Murphy's law says that could have been a wire snapped off at a roller plate if it was post war.....so you may have lucked out some 
Tin the wire tip with solder first. Tinning preloads the wire with solder making the actual connection's soldering faster and easier.
Wire tinned, cean the iron. Load the tip slightly and do it asap. Wait for the tinned solder to melt/flow/shine, pull heat, hold still, count to 5 slow, and your done. Hopefully the tab can be mangled into a better position.
Another option once done is "liquid electrical tape".
...not for drinking 
, for insulation where tape or shrink tube wont work .
Paint the thick goop on and wait a while. A can will last years.
If the kid is into electronics ; Soldering station (check), good strippers, stainless needlenose set (solder wont stick easy), great crimpers and connectors, like the best (industrial/SAE quality....no big box crap) and an ohm meter they like. I prefer ones that feel like they can bounce. Oh, and a spring loaded solder removal pen! Those are awsome!...marker sized pen mind you...thin with plunger and buttons down low is best. Not too big; its hard to handle big ones with " ball knobs".
