Professor of Pharmacy at Hogwarts

In the afternoon, there was a knock on Alexis' office door.

"Please come in."

Alexis didn't expect the three Harrys to come so early.He has a fourth-grade pharmacy course later.

He took out his course schedule and looked at it.In this world, they should be in class.

"Can't you get your Quidditch flying lessons?"

Seeing Alexis' serious expression, Harry quickly explained.

"Mr. Alexis, you are mistaken, our class schedule is not this."

Hermione also explained

"You remembered it wrong this morning. We only have one class this afternoon and it will be full tomorrow morning."

Harry and Ron immediately glared at Hermione. Hermione was not afraid, raised her head and looked at the two of them, and stared back fiercely.

"I have another class for fourth grade students later. I will take you out after the class is over."

Alexis asked, "Now, are you going to wait for me in the office, or are you going to follow me in class to observe?"

"We'll do it right here (I'm going with you) Mr. Alexis!"

Three people spoke at the same time.

After talking about their choices, Hermione looked sideways with contempt in her eyes. Alexis was very familiar with this look. It was the disdain of a top student towards a bad student.

Although he was not considered a scumbag when he was in school, his grades were only average. There was a witch in the same grade who had the same combat experience as him and kept glaring at him like this.

James told Lupine that the top student had taken a liking to him, while Black and Alexis thought they should find the female top student privately, have a hearty wizard duel with him, defeat her, and tell her, Although his grades are average, he has rich combat experience...

"Mr. Alexis?"

Alexis shivered and came back to her senses.He took out his pocket watch and looked at it. It was almost three o'clock.

"Harry, Ron, you stay in the office. There is a laboratory in the back. You can go in and have a look, but don't move around. If you go to the front, don't offend Horn."

Alexis warned, took the lesson plan and book, and looked at Hermione.

"Miss Granger, that's a good textbook, let's go to class."

Saying goodbye to Harry and Ron, Alexis led Hermione into the Potions classroom.

The fourth-grade class is only one hour long, but the number of students who signed up is not large, a full 33.

At this grade level, classroom discipline is much better than before.Although it is still five minutes to three o'clock, the little wizards in the classroom are already sitting neatly.

Alexis led Hermione into the classroom. There was a brief noise in the quiet classroom, and then it quickly returned to silence.

Alexis arranged for Hermione to sit at the desk and glanced at the little wizards below.

He noticed that the group of young wizards seemed to be taking advantage of the time between classes to do their homework. When Alexis came in, they quickly changed into the textbooks for the Pharmacy class and came out. This was the brief commotion before.

In the fourth grade, classes will no longer be as easy as before. Various courses are fully scheduled, and after-school homework becomes more and more.

Alexis walked out of Hogwarts, and he was very clear about the curriculum of each grade in Hogwarts.

Putting the lesson plan on the desk, Alexis coughed lightly, briefly introduced himself, and then started class.

The fourth grade pharmacy classroom layout is different from the previous three grades.

According to the complete textbook arrangement of "Magic, Potions, and Botany", the first three grades are theoretical teaching, instilling new ideas in potions to young wizards. In the fourth grade, there is an interaction between theory and practice similar to the potions course. Integrated teaching methods.

Here, the teaching aids purchased by Alexis finally came into use.

"In the past three years of study, you should have learned a lot about the processing of medicinal materials. That was given to you by Professor Snape in the Potions class, but in the Potions class, I ask you to forget these. We have to learn A whole new way of handling herbs.”

Alexis spoke.He pointed to the mortar and simple centrifuge on the desk.

"Everyone knows the mortar. Now I want to introduce this machine."

"This is a centrifuge, a machine that uses the centrifugal force generated by high-speed rotation to separate liquids and solid particles or components in a mixture of liquids and liquids. It is very common in the Muggle world, but here, you may be the first One exposure to it.”

"Its efficiency is several times higher than that of a crucible plus an alcohol lamp."

The traditional magic potion extraction process is very simple. It simply processes the required parts and then boils them in a crucible. This level of use is a huge waste of medicinal materials.

Alexis once conducted an experiment to compare the utilization rate of centrifuge and traditional medicinal material production process. The centrifuge was at least three times that of traditional process.

Alexis originally wanted to explain the working principle of the centrifuge, but seeing the curious looks of the little wizards and thinking that starting from the fourth grade, his class only lasted one hour, he had to give up regretfully.

Now Alexis was a little suspicious of the wizarding world's education methods.

Is it really okay to only teach courses related to spells and potions without teaching mathematics, physics and chemistry?

However, these are not issues that he needs to think about yet.

"Each of you has a small set of materials prepared on your desk. These materials can be used to prepare a pair of insect repellent."

"Insect repellent is a good companion for travelers and explorers. It can effectively repel 80.00% of currently known insects."

"The recipe for the repellent is in the textbook, and the process of making it is very simple. In this class, I will lead you to make it. By making the repellent, you can become familiar with the use of these devices."

As he spoke, Alexis picked up two mint leaves, crushed them in a mortar, put them into a test tube with a horn spoon, and put them in a centrifuge.

Then mash several other medicinal materials one by one and put them into the centrifuge.

"In the past potions class, crushing the medicinal materials was the entire process of processing the medicinal materials. The next step should be to boil the potion."

"But in the pharmacy class, crushing the medicinal materials is only the first step. Next, we need to use a centrifuge to help us further extract the essence of the medicinal materials."

Alexis demonstrates how to use the centrifuge.

Fix the test tube, cover it, set the time and speed, and press the switch.

Wuwuwuwuwu~~~

The small centrifuge immediately started spinning, causing the entire desk to make a buzzing sound.

When the set time was reached, the centrifuge automatically stopped rotating, opened the lid, and took out the test tube inside. The originally turbid medicinal materials in the test tube actually became stratified.The dregs of the medicinal materials settled at the bottom of the test tube, while the clear and usable part was above.

"Okay, it's your turn."

Alexis made a simple mixing and debugging, and a fresh set of insect repellent was released.

The little wizards find it interesting to make potions in this way, which is much simpler than the stressful potion making.They all started to move their hands.

The entire pharmacy classroom was immediately filled with buzzing buzzing buzzing buzzing sounds.