Seriously How do you bio people memorize so much info?

[gravenewworld]

I'm sure this next chapter on oxidative phosphorylation is going to be even more dandy with even more memorization required.

 

[Moonbear]

Every biology course I have encountered required memorization. Biochem in particular, seemed to have the market cornered on volume of things to memorize. (With lots of kicking and raving, I managed to survive two grad biochem classes). While preparing for those exams, on more than one occasion I recall waking in a sweat, having nightmares about pathways that were so jumbled they made absolutely no sense

Heh heh. I think there's a general problem in the way biochem is taught. At the undergrad level, yeah, it can seem like a lot of memorization when you don't yet have the background to understand the chemistry of it. But it's frustrating that they continue to teach it the same way at the graduate level, when you should be able to expect students to have more background and the ability to understand that there is some method to the madness. Afterall, somebody, or some group of people, worked out how all these pathways work, so there must be a way to understand it without rote memorization. Unfortunately, my experiences with biochem profs has been less than satisfactory as well. It seems like they all teach it the same way; they just don't seem to know any other way. Afterall, I had been memorizing glycolysis and gluconeogenesis pathways since high school freshman biology. Surely by the graduate level there is something more interesting to be taught and learned about it. When I was a post-doc, I decided to sit through a grad level biochem class at that university as well, thinking that seeing how it's taught by faculty at a different university might give me better ideas about it, but it was still the same thing. Can't we at least assume that by the time someone gets to graduate school in biochemistry that they know what the 20 amino acids are and the abbreviations used for them, what a purine and pyrimidine are, the difference between DNA and RNA, the different types of RNA, that DNA is transcribed to RNA and RNA is translated to protein, etc? But yet they go through all of this over and over again as if it's brand new material. It wasn't even new in college Freshman bio, but at least there you can assume some students came from high schools where the science curriculum may have been weak. By the time you're in grad school, you already know "what" happens, you want to know "how and why" does it happen.

A doctor friend of mine expressed a similar experience in Med School, a lot of boring memorization. His BS was in physics and agreed that physics and math emphasize problem solving. He went on to point out, that "memorization" is a lower form of learning.

Unfortunately, it shouldn't be memorization, but that's what the med students make of it. We have a course here that is required both for med students and some of our grad students. It's absolutely amazing how different the two groups' approach to learning is in that course. For the med students, they need a C to pass the course, and for grad students, they need a B to pass, so the standards are already different. But, the med students are content with just a C. They memorize just as much as they need to in order to get a C and are happy with that. The grad students want to understand the material, and whatever their grade, they strive to learn as much as they can of it. There's a lab component, and you should hear the grad students complain when they get stuck with a med student in their lab group.

But there is a lot more that does need to be memorized in your basic biology courses than in your basic physics courses. You also jump right into material that isn't something you've watched happen your whole life. Think about it. When you start out in biology, you learn all about what a cell is and a lot of things that go on inside that cell. You've never seen the inside of a cell growing up. When you start out in physics, you learn things like speed, velocity, acceleration, friction -- things you've experienced every time you've gotten in a car. The forces may be invisible, but you've felt them nonetheless. It makes it easier to understand through a bit of intuition about your experiences rather than something that's entirely new right from the start. How much more difficult would people perceive physics to be if you jumped straight into the material on quantum physics and relativity?

 

[Monique]

Can't we at least assume that by the time someone gets to graduate school in biochemistry that they know what the 20 amino acids are and the abbreviations used for them, what a purine and pyrimidine are, the difference between DNA and RNA, the different types of RNA, that DNA is transcribed to RNA and RNA is translated to protein, etc? But yet they go through all of this over and over again as if it's brand new material.

Yes, that is my biggest irritation in gradschool too. They spend all their time on trivial stuff, and when it comes to some serious stuff it is skipped because it is too complicated or there is no more time :yuck:

Today I attended a three hour lecture on B cell and allergy, part of a graduate course. The first hour was ok, where the synthesis of IgE was discussed and the two TH2 mechanisms introduced. But the rest was no more than introductory material (which already had been covered extensively in the preceding lectures) of what lymph nodes are, what the spleen is, how recombination takes place of the immunoglobulins. When we finally came to the relevant chapter of the book, all the time was up. Imagine my disappointment.

 

[gravenewworld]

I think that's the problem with these courses that are hybrids with 2 different fields. The first exam all the bio majors did horrible, we had to spend like 2-3 weeks going over acid base chemistry, equilibrium constants, the hendersen hasselbach eq. etc., all high school chem and gen. chem stuff. Now the course has turned to more bio, so all the chem majors sucked on this last test while I'm sure all the bio people aced it. The bio majors have been doing this stuff for 4 years, the last time I had bio was freshman year of high school.

 

[Moonbear]

I think that's the problem with these courses that are hybrids with 2 different fields. The first exam all the bio majors did horrible, we had to spend like 2-3 weeks going over acid base chemistry, equilibrium constants, the hendersen hasselbach eq. etc., all high school chem and gen. chem stuff. Now the course has turned to more bio, so all the chem majors sucked on this last test while I'm sure all the bio people aced it. The bio majors have been doing this stuff for 4 years, the last time I had bio was freshman year of high school.

I don't think that should have anything to do with it. The bio majors need to know that chemistry as well. If they don't know equilibrium constants and the Henderson-Hasselbach equation yet, they don't belong taking biochemistry. They should have covered it in both general biology and general chemistry before ever getting to a biochemistry class. That's one of those things that's redundant all over the curriculum (at least it's something that you'll use in "real life.")

 

[Moonbear]

Yes, that is my biggest irritation in gradschool too. They spend all their time on trivial stuff, and when it comes to some serious stuff it is skipped because it is too complicated or there is no more time :yuck:

Unfortunately, some of our faculty teach like that as well. We have a new course coordinator for one of our grad level classes, and she's doing her best to weed out those faculty and replace them with people who don't teach the same basic lecture in every class.

The students usually like the way I teach the grad level classes I teach because, while I do start out with some overview of stuff they already should know, I tell them I know most have seen it ad nauseum before and that's why I'm going to fly through it really quickly just to make sure everyone remembers it. I then let them know that if anyone in the class has not seen that material before, then they need to make an appointment with me to learn it (in other words, I want them to know it, but I'm not going to waste the time of the class re-teaching it to everyone). We then spend the rest of the class going into detail on one or two very recent journal articles. It takes a lot of time to prepare a meaningful class like that because I have to find articles that actually relate to the topic and that include experiments that do a good job of illustrating many concepts, but if I want students who are well-trained as scientists, that's time that's important to take.

 

[Monique]

I really like your method of teaching, I think it is perfect. Basic slides are important for refreshing memory, but no time should be spend on them.

The current course has a very interesting teaching method. One day is a 3-hour lecture, at the end we get handed two articles after which two students are appointed to present the next day and the rest to prepare questions. The next day there is a total of 3 hours to discuss the material. This is repeated for 4 weeks. This way we learn what is going on at the research institutes, study recent literature, develop reading and presenting skills, learn how to be critical of articles, and learn to speak up in groups (there is not exam, students are judged on participation).

 

[Ouabache]

Don't you have to study formulas? I once did rheology and it involved stuying these very complex formulas and relating them all to each other.

In physics and engineering, my courses approached formulas by deriving them from first principles.. That way if we needed one, we could derive as needed. At exam time, you often don't have time to derive formulas, however the professors knew that and most allowed students to bring a sheet of notes. If you practised solving enough problems, you remembered the ones you need..

Pathways can be very logical if you look at the structures of molecules, they do not magically appear out of nowhere.
If you only do memorization in biochem, you are doing something wrong.

You're right, and I actually enjoyed reading my biochem book (i believe we used Stryer), it was quite interesting. And I followed the logic of the pathways, molecular structures, binding affinities, stereochemistry, fun stuff!
I realized early on, there were subjects I excelled in and others that were not my strongest suit. Biochem was one of the later and understandably, organic chem was another. I am sure it was accelerated rate at which the information was presented, that hindered me (and the way my brain processes that material). My brain works with mathematical constructs much better.

 

[fern]

heheheh i love bio!
you don't memorise all of it! omg that would be so bad!
i guess if you listen in class then you will remember it better and itll be easier when youre studying
i think its much easier to remember thing than to work things out, that's why i love bio!
:shy: