Walking into the empty classroom with vacant eyes, Lynn turned around to face all the students of Ravenclaw House, nearly all of Hufflepuff House, and about half of the Little Lions from Gryffindor.
Scanning their expectant gazes indifferently, Lynn spoke mechanically.
"Today we will learn Expelliarmus. It is a very useful spell that can disarm an opponent of their weapons, including wands, Muggle firearms, or anything the opponent holds that you define as a weapon."
Lynn paused for a moment, continuing only after ensuring everyone had heard clearly.
"Expelliarmus is effective against most Wizards because few can perform wandless magic; only some powerful Wizards can do so. Therefore, except for that group, other Wizards essentially lose their ability to resist after being hit with Expelliarmus."
"At the same time, a powerful Expelliarmus also has the ability to knock an opponent back."
After Lynn's explanation, the Young Wizards in the lower years who hadn't learned Expelliarmus yet came to a sudden realization, gaining a deeper understanding of the spell's effects.
The older Young Wizards looked at each other, wondering if they had underestimated Expelliarmus.
"The incantation for the Disarming Charm is Expelliarmus."
Lynn's pronunciation was methodical, extremely standard, and slow; everyone present heard her clearly.
"Please repeat after me: Expelliarmus."
"Expelliarmus." The Young Wizards in the classroom repeated the incantation, mimicking Lynn's pronunciation.
Lynn's gaze swept quickly through the crowd, and her brain automatically differentiated the sounds in her ears.
Every person's pronunciation was matched to the individual.
"Mr. Parsons, Expelliarmus. Please say it again."
Locking her gaze on a third-year Hufflepuff boy, Lynn looked at him expressionlessly.
"Expelliarmus."
Parsons tried hard to mimic Lynn's pronunciation and said it again; to Lynn's ears, it sounded significantly better than the last time.
However, there were still some issues, which she corrected bit by bit.
Lynn then pointed out every Young Wizard who had pronunciation issues one by one.
The Young Wizards didn't feel embarrassed; it was normal to have mistakes pointed out.
Moreover, Lynn's attitude was so gentle that those who had experienced Potion Class felt as if they were basking in a spring breeze.
While the others felt like they were in a spring breeze, Hermione watched Lynn with some surprise.
Everyone had just recited the incantation together once, right?
Was that single recitation enough for her to hear which Young Wizards had pronunciation issues and what those issues were?
Lynn's focus and analytical skills were constantly refreshing her perception.
Hermione clicked her tongue inwardly, watching Lynn begin to teach the wand movements after correcting everyone's pronunciation.
Lynn flicked her wand lightly, performing the wand movement for Expelliarmus. Every motion was precise to the millimeter, almost exactly as described in the books.
The Young Wizards below followed suit, waving their wands. Lynn's gaze patrolled the room again.
Sure enough, as soon as they stopped, Lynn spoke.
Unlike with the pronunciation, this time she called out everyone.
After all, the Young Wizards weren't her; they couldn't perfectly replicate her movements.
There were more or less some deviations, which in Lynn's eyes were clearly errors that couldn't be ignored during the learning process.
"Don't rush. Take it slow. Try again."
"You can lower your arm a bit more. Yes, well done."
She corrected their movements tirelessly, not letting even the smallest detail slide.
Normally, students might get impatient in such a situation.
But in fact, not a single Young Wizard showed any sign of impatience.
Although Lynn lacked tone and her speech was cold and stiff, everyone could feel her gentleness and concern through her words.
She's coaxing them to learn! This thought occurred simultaneously to the Young Wizards.
In that case, how could they not work hard? Whatever Lynn said, goes! Come on, study hard!
An indescribable fighting spirit erupted among the Young Wizards; with repeated corrections, muscle memory quickly formed.
Lynn's attention split into hundreds of parts, focusing on everyone present.
The first to finish practice and meet Lynn's requirement wasn't an upper-year student, but Hermione.
After Lynn nodded to her, Hermione understood and waved her wand at the Mannequin at the front of the classroom. "Expelliarmus!"
Bang! The Mannequin flew backward and slammed heavily into the wall.
The first and second-year Young Wizards cheered, applauding Hermione's brilliant performance.
The remaining upper-year students who had already learned Expelliarmus looked at Hermione in near disbelief.
Such power? Are the lower-year students these days all so fierce?
If Hermione alone left them in disbelief, Harry's subsequent performance left them somewhat numb.
The power of his Expelliarmus even slightly exceeded Hermione's, making Harry chuckle secretly to himself.
As the corrections were completed, Penelope, Maranhao, and Marietta also finished their first spellcasting after "re-learning" Expelliarmus.
"The power has indeed increased." Maranhao lowered her wand and turned to Marietta.
Marietta nodded in agreement, while Penelope beside them was filled with ill-concealed excitement.
"Is it because the wand movements and pronunciation are more standard?"
The studious Ravenclaws clearly had their curiosity piqued.
"Yes," Lynn, who had been monitoring everyone's progress, came over to the three of them and spoke affirmatively.
"The more standard the wand movements and pronunciation, the stronger the magic cast with the same amount of magical power."
Lynn stated this without any emotion in her voice, and everyone who heard her began practicing even more vigorously.
Especially the upper-year students, who truly became serious.
Lynn had initially estimated fifteen minutes for learning Expelliarmus.
From learning the correct movements and pronunciation to successful casting, and then to proficient application—being able to use it in actual combat with silent, instantaneous casting to ensure its effectiveness.
A total of fifteen minutes; this was the result of her slowing down her own standards by twofold.
Unfortunately, the results didn't go as she expected. It took fifteen minutes just to reach the step where everyone could successfully cast the spell.
Drawing her wand, Lynn stood in the middle of everyone. Without moving her wand or chanting, all the desks and chairs in the classroom automatically rose into the air and stacked themselves into the four corners.
The Little Eagles, Little Badgers, and Little Lions all swallowed hard, looking at Lynn nervously.
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