"Alright, alright, let's review the knowledge about trolls today, electives, and if any of you don't want to, you can leave."

The fifth and seventh grade students did not leave, and even the students of other grades gathered to the side to watch the excitement, but the deans roared, and they had to go back to their own college lounge.

Dumbledore finally looked at him earnestly, motioning him to watch his time and safety, and then left the dining room.

"Since no one is leaving, then, Mara, please help me move the table for the time being, as soon as possible."

Mara jumped out of the air and shouted cheerfully, "Professor Silva actually remembers Mara's name!" Mara was so impressed! ”

It joined forces with the other house-elves and temporarily piled the table out of the hall. Ricardo stood in the hall, clapping his hands and motioning for everyone to look at him.

"I know that even though it was a fun hands-on lesson, it also had an impact on your leisure, and you may not be interested in trolls, but you didn't leave because of the classmates around you."

"So in today's lesson, I'm going to ask at least three questions, starting at twenty points each, and there's a reward for fighting trolls. I hope you will listen carefully. ”

At this time, the students were basically quiet, and the professor had already thought about this, and they had nothing to say.

Of course, the number of questions also plays a big role, giving students a sense of competition. If it's four questions, it's better not to ask.

Ricardo spoke slowly and methodically about the impromptu elective:

"Trolls are the curriculum we study in our first grade, so let's first recap, what did we learn in first grade?"

"Vampires!"

"Trolls!"

"Werewolf!"

"Stupid, werewolves were learned in the third grade!"

"Really? Then Wizard Chess! ”

“…… Shut up. ”

……

"Looks like your first year is really colorful," Ricardo clapped his hands to listen to him, "Let's ignore the Defence Against the Dark Arts students who are learning about the Levitation Charm and the Devil's Web (at which point someone laughs embarrassedly: "Mixed up, Professor"), I just want to ask out of pure curiosity, those students in the first year who learn how to fight Dementors, were you assigned to Azkaban by the Sorting Hat?" ”

As he spoke, he made a look of admiration and sighed:

"My student is really Merlin!"

The students laughed even louder, and many pushed people nearby.

After the students finished laughing, Ricardo continued:

"I think for a moment that those students like to sit in the library and read, and then the first grade saw this. Okay, let's formally review the first grade content together. ”

"The paper is flying!"

With a wave of his wand, a simple mind map flew through the doorway and appeared in front of them. The paper was the size of a man.

"In September and October, we were all rushing to learn what we were learning in our grades, and we were eager to finish the year's content in two months, so I intimidated the fifth grade and motivated the seventh grade, just to take what you learned in one fell swoop when you were more passionate."

"So in the next November and December, I will relax a little bit, review what I have learned in the previous grades, and check and fill in the gaps, which I call a round of review."

"But we still have six months before the exam?"

Ricardo's smile remained unchanged, and the student who asked the question trembled reflexively:

"So, it's just a round of revision......"

Oops...... This was the common idea of all the students present......

"Okay, today we will review the content of the first grade a little, and analyze the ...... from three aspects: dealing with dark magic products, dark wizards, and dealing with magical beasts."

……

(Speaking of which, Ricardo glanced at the sky, smiled and said, "Of course, before we get to deal with a voyeur.) ”

"Forget it!"

And then threw the author out. ）

……

"Now we return to the creature in front of us, the troll. Everyone stinks of this stuff, right? So, who can share with us what kind of magical beast a troll is? ”

A Ravenclaw hurriedly raised his hand and replied quickly and clearly after Ricardo's point:

"Trolls are terrifying monsters that can reach twelve feet tall and weigh more than a ton, native to Scandinavia, but more recently found in the United Kingdom, Ireland and other parts of Northern Europe. They are powerful, brutal, and stupid, and they make a grunting sound when they talk. ”

"Trolls are divided into mountain monsters, forest monsters, and water monsters. The mountain monster is the largest and most dangerous troll, with a bare head and pale gray skin. The skin of the forest monster is pale green, and some of the guys have fine hairs on their bodies, which are green or brown and unkempt. The monster has short horns and perhaps hair. Its skin is a bit purple, and it is often found lurking under bridges. Trolls eat raw meat and are not picky about their prey, from wild animals to people. ”

"Good, Ravenclaw plus twenty-five points!"

Ricardo led the way and clapped his hands, and the others applauded, with the Ravenclaws clapping the loudest.

"He's basically right, but next time, remember to be succinct. Textbooks are not necessarily the easiest, and you have to learn to simplify them if you believe in books rather than no books at all. ”

Absently reminding, Ricardo continued, "A long time ago, wizards tried to distinguish 'humans' from 'beasts' by 'whether they are magical creatures that walk on two legs', because the latter mostly fly or crawl on four legs. ”

"Until they came across it."

At this point, the two trolls were half-asleep, and Ricardo placed them far away, then attacked one of them with a shock charm.

The troll immediately woke up, touched the back of its head, saw its nearest companion, picked up a wooden stick and smashed it hard.

In an instant, the two trolls fought together.

"Loud voice!"

"According to Fantastic Beasts and Where to Find Them, the goblins use trolls to prove how ridiculous this classification is."

The students burst into laughter, and Gryffindor even chose a troll to cheer it on.

"Actually, trolls are very dirty, especially their noses, which are full of gray glue sticky stuff - troll snot, I thought it was a toilet explosion when I first went out. As for now? Hell knows how much water I used and vanished. ”

"Remember the tapestry on the eighth floor? It is a precious image of early humans trying to conquer the trolls. A great man named Nabas—well, Nabah, the fool you call it—was beaten by a troll in order to teach ballet to trolls, and in the end he heroically gave his life. ”

At this time, there were few people listening to the class, and they were all laughing.

Ricardo did not smile at this time, he looked at them solemnly, and waited for the laughter to cease before he said in a soft but firm tone:

"It's a little funny, but please respect this kind of person...... After all, the future of humanity is shaped by this whim. ”

"We may not be able to understand their thoughts, but we have reason to respect these explorers. Mr. Nabah, for example, has been known to have some trolls who can understand or even speak a few simple human languages, thanks to the research of people like him. Today, some of the smarter of them have been trained to serve as guards. ”

After speaking, he turned around and waved his wand to imprison Han Han, who was still dueling:

"That seems like a bit of a lot, so now, let's start preparing for our duel with the two troll gentlemen."