Selina Skies

June 05, 2020 8:55 PM
“Good morning class,” Selina greeted the intermediate students once they had filed in and taken their seats.

“As introduced at the start of the year, one of the popular and recurring theory questions on the Transfiguration CATS paper is ‘How good does your knowledge of an item have to be in order to conjure it?’ We have started to look at that with our co-study of biology alongside plant conjuration, and there are several prominent theories that you will be expected to reference in your essays.

“Today, we will be running a little class experiment along that theme with conjuring scale models of bridges. As this is an experiment, we will be following the scientific method, which I have outlined to you in previous lessons. That means we’re going to need a hypothesis. First off, who can remember what a hypothesis is?” she checked, pretty sure she would easily get the response given certain members of this class, “Excellent. Now, given the overall theory question we’re addressing, and that I’ve told you we’ll be conjuring scale models of bridges, can anyone suggest what an appropriate hypothesis might be?” she asked. There was, of course, more than one right answer, and so she allowed a few students to respond, refining any ideas that were off the mark before adding them to the board.

“Excellent. Today, we will be looking at this suggestion,” the chalk underlined the one which read ‘Knowledge of bridges improves ability to conjure them.’ “Now, that’s still a little vague. What are some of the ways we could rate ‘improvement’ when it comes to a bridge?” she asked. At this point, if the same few hands were the only ones going up, she was more than willing to push for replies from others, “All of you know what a bridge is, and I’m sure can say some things that make it good or bad,” she pointed out.

She refined the statement on the board with student input until it read ‘Knowledge of bridge structure will improve the strength of a conjured bridge.’

“Now, there are a few different factors which might affect how strong a conjured bridge is. These include magical power and practise. We’re also all starting with different amounts of knowledge of how bridges work. So, the most effective way of designing this particular experiment is to compare you to yourselves. You will each be given the name of a bridge type and a basic outline drawing to help you understand what it should look like. After that, you will conjure a small model. You may take as many tries as you like to be fully happy that you have made the best model you are capable of making - this is to rule out practise, or rather lack of practise - as much as possible.

“You will then weight test your bridge to the point of destruction and record your result. After that, you will receive a handout on your bridge type, explaining which design features help it to stand, and the ways in which different forces act on the bridge. You should discuss the material with your neighbour and explain it back to them to test your own knowledge and understanding. After that, you will try conjuring it again, and will retest its strength.

“We will come together to put everyone’s findings onto the board and to discuss what the results mean. For homework, you will receive two more hypotheses to test. You will write an experiment description using the scientific method for each one. One involves a similar design to today’s class, and one involves something different,” she offered as a clue.

“The spell you will need is pontus, with a steady, flat wand movement,” she stated, demonstrating to make a little arch bridge appear on her desk, “And you will be starting from popsickle sticks. If you have any questions, please raise your hand. You may begin.”

Whilst magical science was a relatively understudied field, this was a pretty popular experiment and had been a classroom staple of progressive schools for a number of years. Enough so that Selina had a guideline on what type of results to expect from her students. On the whole, the more the students studied and understood the bridge designs, the better their conjuring should be. However (as she was sure one of the more scientifically minded would point out) she had not really controlled for how well they understood. That could weaken the effect. There were also a small minority of people who got themselves in knots as soon as they tried to think about how something worked - the ‘blind faith’ category of person; they could conjure a bridge just fine if they weren’t really thinking about it, but as soon as you told them they had to understand what they were doing, they stopped believing they could, which was a little deadly in magic.

The type of bridge also played a part - most people could recognise why a simple span bridge worked, even without thinking about the physics, or even knowing that they knew it. It was just logical that a plank across two pillars worked, unless you stretched it out too far. However, understanding a suspension or a cantilever bridge required a bit more thought. Therefore, the effect of knowledge was typically weaker with simpler bridges, because the lack of understanding that needed… bridging was smaller to start with. Given that it wasn’t a simple black and white answer, she thought it would be of benefit to tease that out as a class discussion. But first, there was data to gather.

OOC - welcome to transfiguration. Posts are graded based on length, realism, relevance and creativity.
Some basic bridge info can be found here
If you are not super into the science of how bridges stay up, I hope you can still enjoy this class. As reading about the bridges doesn’t come in until halfway through, you can still give a long, detailed response that is on class material by focussing on your character’s first attempts to make a model.
Subthreads:
13 Selina Skies Intermediates - Bridging the Culture Gap 26 Selina Skies 1 5