Black Pen On White Paper
Chapter 5 [Master of Petra]

That day, there will be an oral exam followed by all students in the class. Each of the students and students were asked questions by the teacher in front. Honestly speaking, the oral exam is Petra's forte. He is good at playing with words and is good at vocabulary picking and sentence usage. Petra benefited greatly from this exam.

All the students were silent at their desks and waiting for the walikelas to give a question. For anyone who can answer them, the disciples must raise their hands and stand in their own place.

“then, you start from the first number question..explain what is terasering” said the walikelas.

Spontaneously, Petra raised her hand and stood on her seat.

“terasing is one method of soil and water development that is mechanically made to reduce the slope or reduce the length of the slope by digging and anointing the soil across the slope like a ladder at home. The goal is to reduce the risk of soil erosion” said Petra.

“good answer, Alex” said mr. walikelas.

“ehh how am I? I didn't answer, Petra answered him” Alex said at the front desk.

“ehh, yes. Excuse me. I mean, good work, Petra class president, hooh he's Petra, not alek” said the homeroom teacher.

Mr. Walikelas also gave a second question. In the second case, no one raised their hand except Petra.

“the second question.. explain the fertilization mechanism that occurs in bunga”.

Spontaneous Petra raised her hand and stood in her place to answer the question of the welldress.

“fertilization of flowers is also called flower pollination. Inside the part of the flower, there are stamens and pistils or pistil heads. Those two parts are key to how one plant can bear fruit. The pollen will pollinate some sort of powder in its part and then hit the pistil head. Many factors that affect fertilization include pollination with wind, water, or with insect”, he explained.

“well, right once” replied mr. walikelas.

“soal third.. explain what graft” means.

Petra spontaneously raised her hand and stood in her place to answer the question from the walikelas.

“Graft is an artificial vegetative breeding in plants by making branches or branches become rooted. The goal is to get new individuals who are the same as their parent and quickly bear fruit. But grafting also has its shortcomings. The disadvantage is that the plant is less strong because the roots that grow are rooted in fiber” he replied.

“good, Petra...” says walkel sir.

“about the fourth.. on the branch of the banyan tree, there is a rope like hanging. What does it” said mr. walkel.

“actually, it is not a rope used by Tarzan as a hanging tool. The rope is a hanging root. Hanging roots have an important function in the process of respiration or as breathing in the process of photosynthesis. The hanging roots in this banyan tree are a type of respiratory root. So, this hanging root is the most important part of the banyan tree that can help in carrying out a process of respiration or breathing. The roots hanging on the banyan tree will absorb water and air around the tree. Basically, although not a type of root that can support the tree in a complex way, but the hanging roots in the banyan tree have the same function as the roots in the soil. Among them, it can absorb water and CO2 substances contained in the air, for the benefit of the process and respiration cycle in the banyan tree, replied Petra at length.

“that's an amazing answer. How the hell did you know? Did you cheat in the book?” ask walkel sir.

“no sir, all the problems you give are the problems in the PR book yesterday day” Petra replied.

“right too, but why only Petra answered. Have you all not done PR yet?” ask walkel sir.

“not Pak” answer them all.

“your basics all. The father gave an oral exam so that the time is not too tight because soon the father will have a meeting. If you have not done PR yesterday, how do you guys to understand the material on this day” said mr. walkel sighed so deeply.

“in a moment, you will have a meeting with the principal. I asked the class president, Petra. I want you to teach them to understand. You don't want to know, you all have to study with Petra today!” assertively walkel sir while taking his journal book and then walking out of class.

“ehh, why me! troublesome” shouted Petra while sighing so deeply.

“what are you waiting for?” shouted Lucas.

“do I have to teach kaian in front of class?” ask Petra.

“you have to explain to all of us on the board” replied Lucas.

“ alright then, but you guys should pay attention to me properly. Lest anyone busy themselves behind me or I will stop being your teacher” Petra said as she stood up from the seat.

“baik” answer them all.

Therefore, Petra walked to the front of the class while carrying textbooks and notebooks from the material that had been studied yesterday afternoon. As has been given by the walkel sir, the material that must be taught is 5 materials. Namely, Teracering, Pollination, Grafting, Hanging Roots of Banyan trees, and the last one is Palawija Plant.

At that early hour, Petra had to teach them all the terracing materials. For 3 full hours, Petra and all the students there are competing to understand the material being taught.

“so, do you guys know about terracing?” petra asked them all.

“pah” answer them all.

“so, what is terracing?” ask Petra again.

“terasering is, one of the soil methods-“ said they were cut off.

“wait a minute, I want to straighten out one thing” Petra said stop saying them all.

“ada what?”

“if you remember the subject matter, you will quickly forget. You guys have to understand it”.

“so, what should we do?” ask them all.

“so, some kind of oral exam?” ask them all.

“yapp, that's right because the oral exam is the easiest test to know the level of understanding of a student from the material that has been taught. I want to test how much you understand. Answer in your own language and frame your words as you understand this material”.

“baik” answer them all.

“then, first question for Lucas. What is terracing?”

“terasering is, a method for growing plants that are located in the mountains or something like that. The goal is to avoid a landslide” Lucas replied.

“yapp, that's a good answer, but not exactly. Who can fix the answer from Lucas?” ask Petra.

“I want to answer” says Anna.

“please, Anna” replied.

“terasering is a method of growing plants that exist in highlands or mountains. The goal is when the plant is exposed to rainwater, the land is not eroded by rainwater” replied Anna.

“your answer is the same as Lucas” said Petra put on a look of annoyance.

“but my answer is longer” said Anna.

“long answer does not make you right in word selection. Try it with your own language and understanding. I'm a little sure Emma's starting to understand. Does Emma want to try answering?” petra asked Emma, her classmate.

“ehh, ta-but I'm a little shy” Emma said with a flushed face.

“just relax, Emma. If you're shy, Alex's brother is next to you!” issak teases Emma.

“break your collarbone!” kashut Lucas to Alex.

“heah, just kidding” replied Alex.

“then, does Emma want to answer it?” ask Petra back.

“well, I'll answer it. So, terracing is sort of a method of growing crops. Terracing is used in highlands such as mountains and anu. So, the goal is to avoid soil erosion because the slope of the soil is too anu”, Emma replied with a broken speech.

“anu what is?” petra asked in such confusion.

“i mean, the land that is too steep resulted in a landslide in the highlands” Emma replied.

“yap, absolutely right. So what Emma has answered is completely true. I think I've taught you enough about this material. Do you understand the terracing?” petra asked them all.

“apparently, if Petra teaches us, we are easier to understand than Mr. Jimmy who taught us” said Alex.

“if Mr. Jimmy doesn't come back until later, Petra has to teach us the next material”.

“ehh?” petra asked in surprise.

“we think that if you teach us all, we understand” easier said Issak classmate Petra.

“i think Lia will be a little happy when you teach in front of the class. Unfortunately he did not enter today” said Emma.

“better you run for us, that way we understand” easier said Lucas.

“that's right. If the class leader and vice-chairman teach us to learn, it will be exciting. Moreover, the two are not much different in terms of the value of” said Alex.

“why are you all telling me to teach with Lia?” petra asked with flushed cheeks.

“cie cieeee.. Petra's cheeks are blushing” they all told him.

“he-stop it! asansih y'all” he said withholding embarrassment in front of the class.

“cieee, Petra likes Lia” said Emma teased him more.

“isshh, w-what the fuck are you guys, don't say carelessly” he shouted with cheeks getting red.

“cieee, Petra salting” says they're all the more tempting Petra is.

“su-sudalah, all of you BUTTERFLY GRASSHOPPERS!!” petra said he cursed so misbehaved and walked out of class.

When Petra was about to leave the class, inadvertently Mr. Jimmy, the homeroom teacher simultaneously intended to enter the class. Seeing that, he also told Petra to go back into the classroom and sit on her own bench.

Inevitably, Petra had to obey he said. He went back into the class followed by Mr. Jimmy who entered the class as well.

“sorry son, new father in. I have an important notice. Before, How was the lesson? Did Petra teach you well?” ask Jimmy sir.

- SERIATE