Showing posts with label teaching. Show all posts
Showing posts with label teaching. Show all posts

Monday, May 31, 2010

Teaching Folds - Using Play-Doh

One day when I was coming up with a lesson idea for showing students what folds look when the have been eroded, I kept thinking cinnamon rolls would be awesome to show them. But they might not work right, you can't really change the folds, and it would be expensive. That's when I thought of Play-doh. Basically it overcomes all those obstacles. You can find a PDF of this exercise as well as any other Out of the Box Geological Lessons at my website here. So here we go.

Step 1: you need Play-doh in at least 3 colors. I purchased a box of 16 and combined like colors to get enough to work with. Play-doh mixes rather well with a little work. A rolling pin and a knife. I prefer something sharp so the lines are clean.

Step 2: Roll out each of the colors. Try to keep them thick and about the same size.


Step 3: Stack the layers together.

Step 4: Trim the edges so you have a nice neat rectangle.


Making sure the layers are thick enough. I found that if you roll the layers after they have been stacked to make the surface area larger causes a real big head-ache when trying to get the Play-doh apart again.

Step 5: Make your folds. I found that making a syncline with 2 anticlines on the outsides help make the plunging syncline produce the best structures. It also saves time on making different models.

Step 6: Non-plunging folds. Cut clean across the top creating nice parallel bands.


Step 7: Plunging folds. Cut at an angle across the fold. I found the best plunging syncline is produced when you cut across from the bottom corner to the top back corner as shown in the picture.

The direction of plunge in down in the picture. It corresponds to the right side in the previous picture.

Another view to show the front anticlines and syncline.

Saturday, May 15, 2010

My First Class :-)



It's Official!!! I finally am listed as the instructor of my very own class even though I'm still a student. Yea for my first non-TA real class. :-D

Monday, January 11, 2010

Teaching Geology - Intro Lab

So I decided to take a page from a friend of mine and try something different for the intro Geology lab this semester. He had people come in and organize their shoes in whatever way they liked then describe their organization. This was to show people that science is about organizing information in a way that makes sense and people can understand.

Since I can't stand people taking off their shoes near me I went a different route. I have a whole bunch of random stuff that is all very similar that I could use for this assignment. And I will have the students organize this in whatever means they see fit as a class, then describe their organization.

The items:
Football thingy
Aerobie
Wobble thingy (the yellow and green thing) that is 2 ovals attached to each other
Boomerang
Roomerang (a boomerang made of foam so it can be thrown indoors)
Circle thowing thingy (I wish I knew the name of some of this stuff)
Racquetball
Squash Ball
Tennis Ball
Ping Pong Ball
Golf Ball
My dog's ball
Foam globe
Giant Foam Die
Regular die
20 sided die

So any comments or suggestions?

Saturday, August 29, 2009

The Accretionary Wedge #19 - Out of the Box Teaching Ideas

Teaching is a tricky thing. You want the students to learn, but you want them to learn in such a way that they can remember the information and reiterate it if necessary. The problem with many classes now-a-days is that teaching to most teachers involves standing in front of a lecture hall, reading off notes, based on a textbook, that the students have neither any desire to read and if they do happen to read, obtain little useful knowledge out of it. Granted this may be a bleak view of education but this is sometimes how it seems.
So this months Accretionary Wedge is based on this:

"What out of the box ideas do you use to teach people about geology or geological concepts?" No need to limit yourself on ideas you have actively used. If you have used it and you think it is good, great. Is it an idea you have worked up on and gotten ready but haven't had the chance to use it yet, also great (this is pretty much my scenario). What if it is just a theory that you think would be something different and cool, even better. Anything works, as long as it is "Outside the Box" (i.e. not your typical lecture and textbook approach).

And boy did we get a wide variety of ideas. Actually the ideas were spread out enough that made me think that different people use the different senses to try and teach. Anything from touch to taste was sampled and tried, and here are the results of our experiments (some experiments fall into multiple categories so I am only going to list it under the one that seems the most appropriate or fun).

Look
Out of the five senses this is the easiest for people to take advantage of in teaching. We live in a visual world and geology is in part a visual science. With that in mind, several of my own teaching ideas have taken advantage of this including using geological movies as a teaching tool, (You can check out Part 1 of Dante's Peak) or using classic works of literature to introduce different geological concepts (like creating topo maps in Thoreau's Walden).

Kim over at All My Faults are Stress Related has gone in a different direction. Instead of blocking her student's use of the internet, she encourages it. She uses the internet and Google Earth to teach about volcanoes across the globe. She directs the students to pick one of several volcanoes and using Google Earth, they have to determine if there are recent eruptions and evidence of lava, ash fall, or mudflows. After that they can use the Global Volcanism Program to get other information available on the volcanoes including recent eruptions and the type of lava erupted.

Listen
Using hearing as a teaching tool is not a novel idea. Typically this is the principle learning technique used in lectures but there are novel ways that this can be used. Dr. Tony Ekdale had come up with a unique way to use sonification in paleontology. "In paleontology, it is possible to render various aspects of fossil shapes, such as cephalopod suture patterns or brachiopod commissure lines, as a series of musical tones that can be recognized easily by the human ear... Evocative sounds can generate vivid images in our mind's eye. For several centuries, natural sounds have been incorporated into art." He used the natural variances in suture patterns and other paleontological patterns to create differing audible patterns. Definitely a unique take on paleontology.

Touch
Out of most of the sciences out there, geology is one of the few where touch is the principle method of learning. You need to touch and look at the rocks, minerals, maps and so on to really get a grasp at what you are dealing with. With that in mind Lockwood over at Outside the Interzone has come up with several different methods where students can use their hands to create different Earth systems. Some of his highlighted activities includes creating a 13 meter (that's right, 13 meter!) 1:1,000,000 scale cross section of the earth to demonstrate convection. Another is using iron filings and a magnet to show "how magnetic inclination can be used to determine paleolatitude." He also links to the massive manual From Mountains to Monsoons that he helped work on with step by step instructions on how to complete these and several other activities.

Taste
Food seems to be a big motivation factor in alternative teaching. Christie over at Christie at the cape currently uses cake (that's right, mmmmm cake) to teach about deformation. "As it turns out, cake deforms elastically at low stress and non-recoverably (let's call it viscous) at higher stress. The students cut as many sample cores from the cake as they can. This leads to a bit of waste, invariably eaten, thereby increasing the general level of (blood sugar) excitement in the room. Load is applied by placing other food items (of labeled mass, e.g. small cans and jars) on top of the cake cores. The students measure the surface area of contact and calculate applied stress."

A bit fattening maybe, but an awesome use of baked goods. Another healthier example is brought to us by Ian over at Hypo-theses who wants to use "a banana as an analogue for rock deformation in general, and fault propagation folding in particular. Grasp an end in each hand leaving at least the central third free. Slowly move your hands towards each other. Initially the banana will deform ductilely, and actually thicken. After the initial thickening, the banana will start to fold." He accompanies these instructions with step by step pictures of a slowly deforming banana as well as a real life comparison to his mutated fruit. And when your done, you can counter act that sheet of cake you ate previously.

Smell
Smell is one weird teaching technique that is a bit hard to quantify so I determined that Callan's method from the NOVA Geoblog about using sweat stains as an analogy for ore bodies is the best "smell learning technique". It shows how "certain types of ore bodies are thought to be 'sweated out' from magma chambers as they intrude to shallow enough levels in the crust... These hydrothermal disseminated deposits end up in the pore spaces of surrounding rocks, or filling in cracks. This is kind of like how your body sweats out a solution of dissolved salts in water." Ewww, but definitely a fitting analogy, if not a smelly one. He also goes on to describe how peanut butter between bread can be used to show how igneous sills work and how a Mack truck can be used to show how exotic terrains can be accumulated by a drifting continent.
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So although there is a preponderance of typical teaching methods in the geological education community, there definitely is no shortage of people with fantastic and a little wacky out of the box teaching ideas. And who knows, perhaps someday some of these examples will become the norm in teaching.
Make sure you check out next month's Accretionary Wedge being hosted by Dave over at cryology and co.


Friday, August 21, 2009

Due TODAY!!! Accretionary Wedge

As I get ready to go off to my first day of school in 4 years with my backpack and my new school clothes I am reminded that today is the due date for the new Accretionary Wedge. Our back-to-school theme is Out of the box teaching ideas. So head on over to the original post and post a link to your entry. Any late submissions will be added as I have time.

Saturday, August 15, 2009

Accretionary Wedge - Teaching Ideas

I just read an article by my advisor, Dr. Tony Ekdale, that fits perfectly into the new - Accretionary Wedge: Out of the Box Teaching Ideas - that I figured I would go ahead and mention it here.

The article is called Paleontological Sonification: Letting music bring fossils to your ears (clicking on the link will bring you to the full article). The article goes into depth on how to bring things like cephalopod suture patterns, trace fossil locomotion trails, and pelecypods hinge dentition patterns into an audible realm and allow the students to decipher subtle differences between different classes and species of an organism (or traces). The article is very in depth on how to do this as well as giving three real life lab examples and some of the students reactions to it.

Very interesting and a perfect example of what I wish to compile with this new Accretionary Wedge.

Friday, August 14, 2009

Reminder: ***Accretionary Wedge Deadline in 1 Week***

As I was reminded by Lockwood the deadline for the next Accretionary Wedge: Out of the Box Teaching Ideas is fast approaching (1 week from today, Friday Aug 21st). Please leave comments with a link to your submission on the original post Here.

Thursday, July 23, 2009

A Teaching Revolution

Ok, I don't know if it is actually a "revolution" but it is revolutionary in thought. I just read this article, When Computers Leave Classrooms, So Does Boredom, that discusses how in the modern "technology age" students find PowerPoint lectures as their most boring (most boring?) form of education.

Now this follows perfectly on the heals of my last post, a call for "Out of the Box" (or Outside the box) teaching ideas. The article goes on to explain how PowerPoint is perfect for outside the classroom. Have students research the topic before coming to class and then use the classroom as a forum for debate and discussion. While this may not work on larger class sizes, I can see this as a great alternative to the status quo variety of teaching. Shake things up. The only problem is that students usually don't like to do "homework" and this method basically gives them more. But I am all for alternative forms of thinking. Use the classroom to get the students inspired about a topic, not as a place to pound nonsensical information into their head. College should be a place where students learn how to think, not a place where they are inundated with useless information. Information can be obtained in numerous locations now-a-days, and usually at a faster pace than the professor can deliver it. So use technology, but not to make the life of the professor easier, to make the student a better learner.

As Einstein said "Never memorize something that you can look up."