So because school has always been boring, we can't try to do anything to make it more enjoyable. The things you remember most from school are things that you were interested and engaged in. You can do enough to pass a test, but how long does that information stick with you if you aren't engaged? How much do you still remember from your high school classes? The stuff I still remember are things I found interesting or were presented in an interesting way. I got As and Bs in school, but I couldn't pass many of those tests if I took them again today. Why not try to make things more interesting so they can do more than just pass a test?
I have 18 month old twins, so I can't ask them to do much, but we have gotten them to do some things by turning them into games. They pick up their own toys, put their shoes away, put their clothes in the hamper, and throw their own trash away by making them fun. We have started to notice that they sometimes start picking up their things before bedtime without having to tell them. There are times they don't want to do it, but they do face some kind of puinishment if they don't do what we tell them. So what's wrong with telling them that something is a "magical golden nugget" if it gets them to do it? The difficult thing is finding what that golden nugget is as kids get older. They become less interested in the basic games you tried to play with them when they were younger. I think it's pretty lazy on the teacher's part to do it their own way and expect students to pick up on it.
There is nothing wrong with using your system...but like your said your kids are young.
I know you think its lazy...I got that part. That is the problem.
I have had parents who had kids that got caught cheating ask me, no joke now..."Did you tell them that they couldn't cheat?"
Trying to make everything fun/games and super interesting is very nice in theory...it is not practical and you know that.