Teaching magic to the non-magical is harder that it seems.
When they arrived at England's house, the Germanics and Hungary were quick to drop their bags in the nearest sofa or table. They were surprisingly heavy.
"Did you get everything I told you to?" England asked.
"In the order you wrote them down exactly." Hungary nodded and answered.
"Perfect. Now then, why don't you all unpack your supplies and I'll set up the room."
England walked into the room next to the one they were in, and closed the door. Everyone busied themselves with their purchases, taking them out of the bags and setting various magic items to the side. When England returned, he lead the group into the room he came from. He had pushed everything in it to the very back, and left a large, mostly empty space in the middle of the room. There were six pedestals with vases on top of them in a line in the centre of the room. It was darkly lit, the only window at the end of the room being mostly covered by furniture. Walking into the centre of the empty space near the vases, England started telling them how the rest of the day would be spent.
"Since you all are heading into fifth year, you'll need to know some basic spells, potions, and charms. That's what this room is for. I'll be teaching you things that a regular fifth year in Hogwarts would know.
Of course, this doesn't only include magic, fifth years are also taught magic history and care for magic creatures, and such subjects. Now, if you could stand in a line and hold your wands up." He gestured to the vases, "it might take a while for your first spell to work right, but once you get the hang of it you'll be fine. I want you to say 'Expelliarmus' very clearly."
England should have known that what followed would be chaos. He should have thought of a better way to set up a training room. He really should have set up better targets instead of telling six people, none of whom had any history with magic or how to do it, to shoot disarming spells at old vases. There was a loud chant of 'Expelliarmus' and Hungary's vase went flying into the wall opposite her. Liechtenstein's vase tilted slightly, and Austria's moved backward before falling off the pedestal it was on. The other three didn't move, although Prussia did manage to blast his wand out of his own hand.
After a few more tries, everyone's vases had been smashed, and England decided to use this as a stopping point. After all, they still had potions, history, charms, transfiguration, and magic creatures to learn about, as they were going into their O.W.L year. He chose to start with potions, and pushed everyone into another room with cauldrons at every station and vials of all shapes and sizes on the bookshelves lining the walls. Each was filled with different colourful liquids (some seemed more viscous than others). He figured that, since he knew how Snape taught, potion making was basically a test on how well you followed instructions. He wouldn't have to teach them how to make specific potions, but the nations would have to know the ingredients. He got a few of the more important ingredients out of a cupboard and placed them on the table.
It took a while for certain countries to fully grasp the concept of how asphodel and insect wings could make a concoction so powerful as to bloat the taster painfully, but they got there eventually. After assuring himself said countries wouldn't accidentally confuse ingredients with each other and consequently make someone see in monochrome for the rest of the school year, he moved the group into the previous room to teach them transfiguration and charms (he could also run through history of magic while they were in there). The vases had vanished, as well as the pedestals they had stood on. Instead, six desks were set up in a line, and a frog was on each.
He taught them to turn the frog into water glasses, and then taught them to make those glasses float. He figured he could use this as both a transfiguration and charms lesson. When the frogs were returned to normal, he put them away and started teaching history, going over things he assumed fifth years would know, as well as some things the fifth years wouldn't. After looking into who taught at Hogwarts and seeing Mr. Binns still lecturing students on history of magic, it was safe to say that the ghost would talk of nothing but giant wars through the year. It didn't help that he had no idea what fifth years were taught nowadays, as it had been at least one thousand years since he had gone to the school himself.
He decided against teaching the Germanics and Hungary about divination, and after careful consideration, against teaching care of magic creatures as well. The lessons were fairly straightforward, and the Germanics and Hungary were quite good at learning and retaining the information they were taught (England didn't pick them for this... mission... for nothing). He also knew they could easily draw conclusions and ask around if anything did happen confuse them.
Looking at the clock in his living room after ushering everyone out of the room he used for lessons, England was rather surprised to learn that it was eleven pm. They had been at it for at least four hours! And they still had tons of spells to go over.
Quickly, he made the group put away their supplies and sent them to their hotels for the night. They would have to work on it tomorrow. For now, England was left alone in his house. All he wanted to do was sleep. He didn't realize how stressful it would be to place his faith in nations he didn't really talk too much. Some of whom he had fought in wars.
He fell asleep almost immediately. It was a surprisingly dreamless sleep considering how much he had on his mind.