Sunday, April 11, 2010

Week 6-Structured Inquiry Lesson

This week I was able to implement my lesson that I wrote in week 5. My lesson was for my 7th grade class and it was based on our current topic of discussion--earthquakes. I wanted the students to have a hands on experience with creating an earthquake and determining the different types of faults they demonstrated.

In order to do this lab, we used Jell-o jigglers as our plate tectonics, toothpicks as our roads, and mini marshmallows for buildings. According to Banchi and Bell, the type of inquiry used in this lab was structured inquiry because a guiding question was given by me and an overall lab directions were given, however students were still expected to come up with a conclusion based on what they believe would occur when they performed the lab (Banchi & Bell, 2008). Students were to use previously acquired knowledge on plate tectonics to make a solid hypothesis prior to starting the lab. Structured inquiry is considered a lower tiered level of inquiry, which while I push this group of students, works well considering the class dynamics (Banchi & Bell, 2008). This particular class has 6 students on IEP's and the other students are also low academic achievers.

Prior to passing out any supplies, I made sure to go over all safety protocols for the class. I wanted to ensure that no one would consume any food even though they may think they knew what it was. I did not want them to do what Mr. Houston did in his guided inquiry video demonstration (Laureate Education, 2010). After we went through all expectations, we passed out lab sheets and supplies. The students formulated their hypothesis and the work began.


The students read their lab sheets and went step by step through becoming architects of building of different tiers to see which one's could withstand earthquakes better.


After construction, came demolition time. The students then had to reflect on what occurred in their lab and relate it to the real world. How could anchoring a building with a toothpick affect a building in the real world?


After we created our buildings, we created faults. The students were to create divergent and convergent faults, build a "road" out of toothpicks across the fault. What would happen when the fault shifted? Again, they were to relate this to the real world and illustrate it on their lab sheets.




We ran out of time during the class on Friday for the students to complete their lab sheets in class. They were to complete their data analysis at home and will hand in as part of their homework assignment tomorrow.

Reflection:

For the most part, the lab was a success. The class was on task about 90% of the time. It is a small class, 15 students, and we were able to work in groups of two. We experienced a few moments where redirection was necessary for behavior. One student decided to throw marshmallows and had to be removed from the lab. When I developed the investigation, I thought I had made it challenging enough for the class. After watching the students, I believe I could have pushed the investigation to the next level and had a guided inquiry. Next time I believe I will give the students the guiding question, the supplies and see if they can formulate a plan to reach a plan.

I also started the class with a 10 minute video clip on earthquakes to help activate background knowledge. I still like this idea, but I feel that if I would have eliminated this aspect, the students would have had enough time to finish their lab sheets in class instead of having to complete them over the weekend at home.

I enjoyed observing and asking the students open ended questions as they were working on their projects. It is always refreshing to see them engaged in the material.

References:

Banchi, H., & Bell, R. (2008). The many levels of inquiry. Science and Children, 46(2), 26–29.

Laureate Education, Inc. (Executive Producer). (2010). Science inquiry: classroom demonstration. Baltimore, MD: Author.

Sunday, March 21, 2010

Week 3--Question 9

If the polar ice caps melt completely then the Earth has gone through a rapid global warming process. With the melting ice caps, the ocean water levels will have increased causing a change everywhere. Low lying land that was one inhabitable for animals and people, would now be under water. Flooding will have occurred in many places. Plants and animals that were indigenous to cold ecosystems will now struggle for survival. However, most will probably end up going extinct. Also, the fresh water from the glaciers would melt and change the salinity of ocean water. This would also affect the lively hood of many species of coral, tropical fish, and other sea life that require a tender balance of salinity. Most other sea life could not withstand the great swing in pH that would occur in the water. For humans, our food supply from plants to animals would be in jeopardy. With plants becoming extinct our oxygen supply would also be dwindling. So as one can see, if the ice caps were to melt, the entire life as we know it here on Earth would not be the same and we would be looking at becoming extinct like the dinosaurs did when the Earth turned cold.

Other questions:

How could you have students use this experience and relate it to land, plants, animals, etc?

Sunday, March 14, 2010

5 E's Lesson Plan

After completing my lesson plan using the 5 E's lesson format, I realized that I basically do my lesson planning in a similar fashion. However, I think the "5 E" format made me plan in greater detail than I typically would. This format reminded me of the lessons that were required of us to write in our undergrad student teaching program. At the time, I did not understand why we had to write in such great detail. I now know that if you do not have it in your plans, there's a good chance you are not going to get to covering it or asking that particular question. I enjoyed using the "5 E" lesson format and found that even though it was a longer lesson to type up, it took less time to construct the plan.

The lesson I wrote up was one on mitosis. It was a lab where the students would model the stages using Oreo cookies and sprinkles. To activate their background knowledge and build upon that knowledge, a BBK (building background knowledge) activity would be completed prior to the lab. I actually taught this lesson a few weeks ago in my seventh grade class. The students always enjoy doing BBK's regardless of the topic. For the most part, the lesson went well, I had a few students who struggled with the lab. I think it was more about not following instructions than about ability level. I should add that I teach one seventh grade SPED class and three sixth grade classes. There were not any logistical or practical issues with the lesson other than that it took two class periods: one to complete the BBK and one to do the actual lab.