" Today we're going to study the first chapter of Math in the ninth year: Similarity and Congruency. But before that, let's review the eighth year lessons. Just in case you forget about them," She scribbled some equation in the whiteboard that I recognised to be a two variables linear equation. " We'll start from this... From my experience ninth years tend to forget this lesson. Anyone knows how to solve this?"

In reflex, I raised my hand. I turned my head and saw nobody else raised their hands. Well.

" Yes, Miss...?" Her eyes were glued on my badge.

" Evans, Ma'am," I stepped forward, took the marker from her, and solved the equation.

" Well done, Miss Evans," she smiled," Surely, this is the right way, but it must be too long for you. You'll only have two hours to solve forty questions in your final exam and a way this long can take your time. You can use this way instead," she wrote another short way below mine," and finish it two times faster than the first one,"

I tried my best to hide my one-sided smile. Firstly, I'd always been taught to use the long way FAST because they guaranteed the correct answer and if I kept practising, I could use it faster than the short way. Secondly, didn't she reckon telling students to memorise some way rather than telling them the logic to finish it would only harden them? Math is all about understanding and logic, not finding the result without knowing where it comes from.

" But if you're not assured," she continued, as though she could read my mind," you can still use the long way, as long as it doesn't bother you. Is it okay, Miss Evans?"

" Absolutely, Ma'am," I nodded.

" Okay, now I'm going to teach the basic of this chapter, which surely has been taught in your own classes,"

Murmurs of " no " filled the small classroom and I could only raise my eyebrows in confusion. Seriously? The end of September and no Math lessons yet?

I murmured a " yes " and although it was only me, it was the only thing Mrs. Dapier heard.

She wrote a big " Similarity and Congruency " on the whiteboard and turned toward the student," Who knows what is called similarity, and what are the conditions for it?"

I raised my hand again. I turned my head. Nobody raised a hand.

" Yes, Miss Evans?"

" Similarity happens when two figures fulfil the conditions required, those being them having the same proportions of correlating sides and the same measures of correlating angles. This is different, though, in triangle, because the condition required is only one of that of other figures'. If one of them is fulfilled, in triangle, then they are automatically similar to each other. In this case, two squares, two equilateral triangles, and two circles will always be similar to each other,"

" Good," she wrote at the whiteboard," Similarity, as Miss Evans has said, is the condition when two figures have the same proportion of correlating sides and correlating angles," She turned toward the students again, now particularly at me," And how about congruency, Miss Evans?"

Now I didn't even need to raise my hand. One of my talents : being a teacher's pet in ten minutes. Maybe I should write a book on that.

" Congruency happens when two figures have the same lengths of correlating sides and the same measures of correlating angles,"

" Correct," she said, turning her back to write at the whiteboard again.

Mrs. Dapier continued explaining about similarity and congruency while the students took note of what they thought important (in my case, none, since I had this all noted in 9-1. So mainly I just doodled at my notebook).

" Now please do exercise number 1-30 on page 1. I'm leaving for a while," said Mrs. Dapier when the whiteboard was no longer white. I did the exercises, finished rather fast, and tried to sleep on my desk. I really lacked sleep.

" Have you finished, Char?" asked Rox from the desk next to me.

" Yeah," I replied lazily," What is it?"

" D,"

" Why?"

I scribbled the way on a spare paper and handed it to Rox. " There,"

" Thanks, Char,"

" Char?" Sanon called me from the desk beside Rox," What's your answer for question number 15?"

" Rox? What's Char answer for question number 15?"

" D,"

" I thought it was B. Why is it D?"

" Because it was destined so before the Fire Nation attacked," I replied in a sleepy voice. I'd been watching Avatar : The Legend of Aang the day before.

" Come on, Char,"

" I dunno," She pored over my paper," Char, care to explain?"

" Alright..." My plan to get some sleep had literally failed. Plan B : Get an extra sleep at home. Which was impossible, actually, seeing I had insomnia.

I spent the span time between my plan failing and Mrs. Dapier coming back to the class explaining the whole thing to Rox and Sanon.

" Has everybody finished?" she asked.

" No!" the class screamed, the loudest being Rox and Sanon. " We've just finished the half!"

" Oi, I've only finished five!" shouted Matt from the back desk.

" Two more, Ma'am," said Fleur from the desk next to Sanon's.

" Okay, I'll wait,"

Good. Time to re-accomplish Plan A.

But not so long afterward she approached me," Miss Evans, have you finished your exercises?"

Yes, Ma'am, and I'd like some sleep, thank you. " Yes, Ma'am. Is there any problem?"

" Did you find an answer to question number 28? I didn't find one, and I thought it must be a mistyped question..."

Argh.

" Char, could you help me with question number 28?"

God, pardon my sins.