You are browsing the archive for Technology.

Microarrays MediaBook

June 23, 2009 in KABT News, Labs, Student Research Ideas, Teaching Resources, Technology

While learning about those involved in developing the Synthetic Biology survey that some of you may have taken (June 8th post), I serendipitously navigated to a page at Davidson College that made me aware of the Microarrays MediaBook educational website.  Here is what I read, including the link that I chose to follow…

Another of Malcolm Campbell’s efforts, a multimedia presentation entitled “MicroArrays MediaBook,” has received the international Pirelli Award as the “Best Work for Educational Institutions.” Created with collaborators at UNC Chapel Hill, the MicroArrays MediaBook shows students how microarrays are created and analyzed, and applications of the technology. Its graphic sophistication commands attention, and students can test their understanding of the material with questions for each section.

Here is a shot of the homepage with their extensive internal links.  I agree that the “graphic sophistication commands attention”.  I’m still checking it all out and already know that if you touch upon Microarrays in your classroom you should spend sometime this summer checking it out as well…

MicroarrayMediaBook

http://gcat.davidson.edu/Pirelli/index.htm

Here is an paper activity that I have used to teach about Microarrays, a link to the article that I use with the activity, although I think I will be modifying things so that students can use the MediaBook resources instead.  For those beyond a paper activity, Fotodyne has microarray kits for exploring smoking and plant photobiology, and the Genome Consortium for Active Teaching (GCAT) has a wealth of information and resources for developing authentic microarrays (also developed by Malcolm Campbell).

As my father always says, enjoy!

eBird–Citizen Science at its best

January 11, 2009 in Nature, Student Research Ideas, Teaching Resources, Technology

eBird Home Page

eBird Home Page

Saturday morning, I got up early and headed over to a program presented by Chris Wood, sponsored by the Topeka Audobon folks and hosted by Janeen Walters at Washburn Rural Middle School.   Now I am a geek but the topic had to have a lot of promise for me to give up my Saturday morning cinnamon roll and the promise was more than fulfilled.  Chris Wood works with the eBird program at the Cornell Laboratory of Ornithology.  I’ve got to say from years and years of working in the field of citizen science I was not expecting to be wowed but I was.  My expectations were tempered by the years of struggles trying to figure out how to encourage volunteers to submit, good quality data in a way that benefited the citizen scientist as well as the professional scientist–all the while trying to keep things inviting and exciting for recruiting new folks to participate.   Steve Case and Tom Baker put together a good web based infrastructure to support the Pathfinder science project but today’s Web 2.0 tools take collaboration to an entire new level, creating an environment that can promote and support powerful web-based efforts in conservation science.  eBird provides an exemplary example.

If you are a biology teacher that provides any instruction in or encourages birdwatching or if you are a bird watcher yourself eBird is something to really consider.  I’m not a lister but I think I’m about to start–only because my effort can significantly contribute to a larger effort.  I’m really more of a nature observer–birds just happen to be a convenient focal point.  I have participated in Christmas bird counts and have made a number of reports to the Kansas Bird List about observations and sightings but in general I’m not a hard-core birder.  That is the beauty of eBird.  A more casual birder like myself with just a bit of extra effort to record my sightings can make really significant contributions to a data  base of bird observations while a more intense birder can have a huge impact.  eBird makes it easy to record your sightings and their locations.  eBird simply works for all kinds of birders.

Data input

Data input

In fact, I learned from Chris that researchers accessing the data have developed very sophisticated algorithms to take into account your personal bird watching habits.  For instance, I might be hesitant to participate because when I bird in the spring, I’m primarily looking for warblers.  I’ll note the sparrows and such now, but my effort is going to be focused on the warblers.  Well guess what,  the filtering tools will note this correct for this.  That is good because I wouldn’t want my lack of focus on sparrows to indicate that they weren’t there when they probably were.  (That could create conservation issues.)  This is powerful.

Here’s the deal, though.  One of the reasons that Chris came to KS is that we have only a few folks signed up and participating in eBird.  Notice if you go to the site we are not in the top 30 states for observations reported this year, in fact as of this morning there were only 117 observations turned in this year.  The key to this overall effort is large numbers of observers.  For instance here’s part of a bar chart of bird occurrence in Johnson County.

eBird Chart

eBird Chart

Because of the numbers involved and the data base is a very rich resource for professional researchers.  The professionals are benefiting and we are learning more and more about our birds.  More importantly, as an educator think of the advantages eBird can offer you and your students to collect and help make sense of observations made from year to year, season to season–all the while contributing to the larger research community.  Think about it, create an account and start to contribute–I am.

Inside Cancer from the Dolan DNA Learning Ctr

September 21, 2008 in KABT News, Teaching Resources, Technology

 
This post is meant to inform those unable to attend the Dolan DNA Learning Center workshop Inside Cancer at the Stowers Institute today, which unfortunately I can now count myself among since I woke up under the weather the morning of the workshop and didn’t attend.  So, if there is anything that needs to be added to this post, those in attendance feel free to make extensive comments.

Through brief communications with Larry Hare, I learned that besides learning about the Inside Cancer website, they were introduced to the Inside Cancer Teacher Center, where, after registration and login, a teacher can build a classroom presentation selecting from the multitude of resources contained at the Inside Cancer website, develop and share lesson plans that one has developed in association with teaching about cancer with a broad community, and digitally align the lessons that one has developed with national standards.

Inside Cancer Website

Inside Cancer Teacher Center

Read the rest of this entry →

Genes to Cognition at the Dolan DNA Learning Ctr

September 19, 2008 in Labs, Student Research Ideas, Teaching Resources, Technology


This post is meant to inform those unable to attend the Dolan DNA Learning Center workshop at the Stowers Institute on Genes to Cognition.  This is a site that you will want to delve into when you have a bit of time on your hands.  Well, that is if you are interested in learning and teaching about the connect between genes, cognitive behaviors, and their related brain disorders. 

The student-friendly essential question that this site helps students and teachers to explore is, “What good is a brain?” 

In all honesty, the site reminds me of Thomas Huxley’s book The Crayfish through which he demonstrates that the subject of zoology could be taught via a single model organism. 

In a similar manner, Genes to Cognition facilitates the teaching of biology at all levels of complexity, from the molecular communication networks of our cells to the behaviors that emerge from their collective actions.  At the same time, students will realize that there are numerous unanswered scientific questions awaiting research.

Having had little time to digest the material presented, I currently don’t know where I will integrate Genes to Cognition into my courses but “What good is a brain?” it is quite an appropriate question for students to ask and begin to explore.  The site is presented from a perspective that, on one hand acknowledges the importance of the reductionist approach, while fostering the burgeoning systems based perspective.

Genes to Cognition Website

Read the rest of this entry →

Finding your way to the Fall KABT meeting

September 11, 2008 in KABT News, Nature, Technology

Here’s the google map to the Fall KABT meeting. I dropped the pin in the parking lot. If you click on larger map and zoom out, you’ll be able to “ask for directions” from your address to KU up at the top of the map. See you Saturday.

BW


View Larger Map

Blackworm Lab for Beginning the Year

September 9, 2008 in KABT News, Labs, Nature, Student Research Ideas, Technology

From Charlie Drewes Website (click to go there)

From Charlie Drewes Website (click to go there)

Here’s my favorite lab for the beginning of the year: Blackworm Lab

I modified information and labs from the iconic Charlie Drewes, formerly of Iowa State University, and Randy Dix of Olathe North High School and gave it a special twist I learned from Sandy Collins of West Junior High in Lawrence. For further information on Lumbriculus variegatus you can visit Charlie Drewes’ website which is still being maintained at the university and is a treasure trove of labs and activities with invertebrates.

Charlie Drewes’ Website

From Charlie's Web site (click to go there)

From Charlie's web site (click to go there)

Sandy’s idea that I love has students creating labs and experimenting with organisms they believe are being exposed to stimulants and depressants. After they have all completed the lab you tell them that although the water containers were labeled differently, there was no actual difference in the water. I find we can then launch into rich discussions of the reasons for blind and double blind studies AND how some of the greatest discoveries have come about when scientists got unexpected results and strove to understand and uncover what had really happened.

I also find that during the lab some students get data they believe to be wrong (no difference in pulse rates between the groups). They come to me and ask what is wrong – I use the opportunity to ask them if they were very careful in their technique, if they assure me they were I tell them they should trust their data and try to understand it. It’s fun to have students who think they’re getting poor data get rewarded in the long run with praise for having the most accurate results. (I also give a 5 pt bonus for getting good results and recognizing them.)

Hardy-Weinberg Spreadsheet Model

May 8, 2008 in KABT News, Labs, Teaching Resources, Technology

As part of the KABT thread at the recent KATS KAMP, I argued that we should be asking our students to use spreadsheets to model the concepts of population genetics–in particular Hardy-Weinberg equilibria. I tried to make the case that most of the efforts to model H-W equilibrium in classroom activities such as the AP Biology H-W lab, the M & M’s labs or with beans suffer from too small of sample size (population) or are tedious for the students to explore. On the other hand, working up your own models or having students create their own can be a challenge. The benefits to learning are worth the challenge. In this post, I’ll present the essential parts of an EXCEL spreadsheet that can be used to explore some of the first principles of the effects of population size on drift. This is not presented as the definitive spreadsheet model but rather a rather simplistic model accessible and modifiable by your students. BTW, it takes longer to read this post than it takes to make this relatively simple spreadsheet. I suggest that you bring up EXCEL or some other spreadsheet in a different window and try to create this worksheet as you follow these instructions. Once you’ve mastered this and can creat or modify it at will, then try it out with your students–they can handle this level of difficulty. And when do, they will have an effective tool to explore the basic principles of H-W equilibrium–one that they created.

Here’s what we are shooting for; the basic spreadsheet model for a 2 allele model:

(I’ve recently reviewed this and found that I didn’t mind my p’s and q’s–sorry for the error but the technique is the same.)

Basic Spreadsheet

Read the rest of this entry →

A history of KABT’s web presence or why we needed to try something else

February 2, 2008 in KABT News, NABT news, Technology

Small professional organizations like the Kansas Association of Biology Teachers (50-500 members) face a number of distinct challenges communicating with their membership. As an example, KABT members are spread across a large geographical area, our president and immediate past-president teach about 350 miles from each other. Try getting together for the week-end to coordinate organizational programs with that kind of distance. Our membership includes folks from large urban and suburban to very small school districts that are a couple of hours or Read the rest of this entry →

Email notification of KABT Bioblog postings

January 6, 2008 in KABT News, Technology

Eric Kessler suggested that we have an email notification of new posting to the KABT BioBlog. I have instituted that change and I hope that the script operates smoothly. I have automatically subscribed registered KABT members and users. If you do not wish to receive these notifications just let me know.

BW

KABT Bioblog: The beginning

January 1, 2008 in KABT News, NABT news, Technology

The leadership of Kansas Association of Biology Teachers (KABT) meets each winter at my father’s cabin at Kanopolis Lake. It’s quiet, often snowy and centrally located. I tag along as host—feeding the birds, deer and KABTer’s and making sure that the facilities are in working order. We sit around the woodstove out on our enclosed porch and have a good time talking biology—sometimes we even do some business.
Read the rest of this entry →