I feel that I have come a long way to fulfill this standard this year. I try to make all of my lessons content driven. When in class, students must solve problems in order to succeed in science and understand given curriculum standards, which may range from understanding concepts by explaining them in a different way to applying their knowledge to answer a question.
Students in my classes use different methods to learn the given material. They listen to lectures and take notes, they complete practice problems, and they ask questions when they do not understand, which happens in most classrooms, such as in my mentors’ classrooms. I have added some components to help students show their understanding in different ways. Three particular assignments have stuck out this quarter in my classes. In chemistry, I came up with a poster activity, with the help of my mentor and a few other faculty members, to help the students with orbital notation and the periodic table. Students were assigned an element, and need to figure out how to represent the valence electrons in an illustration, and how to complete the orbital notation for their element, with only one explanation of how it worked the previous day. This activity is aligned with the physical science content standard 9-11 PS2A and helps students meet the standard. I think this poster helped them practice orbital notation without doing the usual lecture and worksheet. I think these kinds of activities help the students want to learn the material rather than having it forced down their throats.
Another way to help the students want to learn the material is to introduce the material with a short video. This helps the students see the material in context, outside of simply learning the material to pass a test. I like to show my students some sort of cartoon every Friday, to help them see chemistry outside of the classroom. I make sure that each one is aligned with the current material because they are the most applicable to the students at that time. From one cartoon, the students were able to demonstrate that they understood the concept of negative ions being attracted to positive ions by explaining it.
In our stoichiometry unit, the students needed to understand how to perform dimensional analysis. We taught the students at the beginning of the year, but they struggled with the concept. I had the students practice a lot in class, and put the problems in context as quickly as I could. Once I introduced the mole and how it can be used in context with the other units of measurement the students already knew (liters, grams, molecules, formulas units, atoms, ions), then I talked about how to convert from amounts of reactants to amounts of products in a demonstrated chemical reaction, combustion of methane. I gave the students a map that would give them a picture of a two neighborhood map to follow a path to get from a given value to the value that they want. The picture depicted different paths to trace, so they can see how to use conversion factors to get from one unit to another. The next day, I organized a jigsaw in which a group of 3-4 students worked on two problems, then scrambled the groups so there was one “master” of each set of problems in a group, so students were teaching other students. We also discussed the importance of two of the problem sets, as they applied to two important chemical reactions, photosynthesis and respiration. By the end of the jigsaw, the students had eight solved stoichiometry problems. The next day, I gave a quiz, a problem almost identical to the problems the students had worked out for themselves the day before. Most students showed that they did indeed understand the concept of dimensional analysis and how to convert from an amount of reactant to an amount of product (1, 2, 3). On the final day, I gave them practice problems that they had to complete correctly for stamps, which translated into points when they turned in a packet that contained all the work listed in this paragraph.
At the end of the stoichiometry unit, I wanted to put together an activity that allowed the students to use all of the knowledge they have gained to complete tasks that synthesize their learning. We had been looking at which reactant in a chemical reaction would limit the amount of product made, and then calculating percent yield, which is product made in an experiment compared to the amount a reaction is supposed produce, according to the math. I used different resources to come up with a three part stations lab, in which the students would be looking at two different chemical reactions and comparing different amounts of reactant to discover which the limiting reactant in each was. The third station was a computer simulation in which students had to put reactants into a system, and look at what was produced. They could determine which reactant was limiting, and how much of each product was produced. I think the lab really helped them synthesize their knowledge. They understood how to calculate the amount of product from given reactants, and how to calculate the percent yield of a reaction in front of them compared to the theoretical amount of product they calculated themselves (1, 2, 3). This lesson was aligned with the physical science standard 9-11 PS2G.
In biology, I came up with an activity where students composed a poem, song or story about what happens when salt is poured on a slug, using specific vocabulary words we learned in class. Students showed their understanding of osmosis by composing a creative piece (1, 2, 3), which is different than normal assignments. This helped them internalize what osmosis is and how it works by asking them to relate it to their lives. This activity is aligned with the life science content standard 9-11 LS1D and helps them meet it. The writing in this assignment helped the students improve their writing, as well as allowing them to incorporate their interests into the stories (see the students work included in the above link).The students were also able to show their creativity in what kind of story they told. The final assignment was an established lab within the biology curriculum, Investigating Cell Variety, where the students needed to figure out what distinguishes a plant cell from an animal cell by looking at different cells and identifying similarities and differences between them. I think this activity helped the students tremendously in understanding plant and animal cell structure, much more so than any lecture might. By the end of the lab, the students’ understood that plant cells are structured and rectangular while animal cells do not have a defined shape, shown by the drawings they completed. By answering different questions, the students showed their understanding that plant cells must go through photosynthesis to get their energy. Therefore, these plants must contain specialized organelles (chloroplasts) to complete this process. Finally, students understood that even though plant and animal cells have differences, there are still common organelles because both must contain the basic structures that make a cell a cell. This activity is aligned with the life science content standard 9-11 LS1C and helps the students meet this standard. This lab required students to use their reading and writing skills to understand the lab manual directions, and answer those questions presented in their lab manuals.
These are all things I have done in the classroom. Through my educational technology class, I found a few other ways to meet this standard. One of the ideas I have gotten through my studies is incorporation of computer games that help students improve their critical thinking and problem solving skills into the curriculum. Another idea is to create a lab that asks students to collaborate with another classroom across the globe. The students would each complete a similar comparative investigative lab that applies to each country’s environment. The students would post their findings in an organized fashion on a collaborative site, such as a blog, and then compare with those findings of the other classroom. They could learn the content they are supposed to, incorporate reading, writing and technology, and introduce students to a new culture.
I have learned a lot this past year about this standard and how to fulfill it in the classroom. It does not only encompass the concepts you must teach the students. This standard encompasses how you teach students these concepts, including relating the concepts to the students’ lives, and the other subjects they are learning. It also includes how you relate the content to their future lives and the skills they need to succeed once they graduate from high school. I feel that I am learning how to effectively accomplish all of these things in my classroom by watching how my mentors do it, and trying out different techniques and activities that I came up with. These are only the most prominent ways that I have fulfilled this standard in my classroom, and I hope to continue to learn more as I go through my teaching career.