Day 57: Reflections on Tri 1

Today was day 2 of final exams, so its a good time for me to reflect on how the year is going so far.

One thing I’ve been thinking about the past few weeks for all of my classes is how to communicate learning targets to my students in a way they find meaningful. This year, for the first time, I’ve had students tell me they find it confusing to be told a test is about a specific learning target, rather than a chapter or unit, even when I include the text of the learning target. My district has a policy that teachers should post learning targets, and administrators check for compliance during observations, and I think its become a box to check in enough classrooms that students glaze over the text. I’m thinking about what I could do differently to help students find more meaning in the learning targets.

AP Physics 1

I’ve been struggling more with class culture this year than I have with the course in the past. I’ve got some great students, but each section has some things that are making it tough for me to build a good culture. One of my sections has 36 students, while all my previous sections of AP have been 25 or less. I’m really excited that more students signed up for the course in the past, but I’m not able to spend as much time with each group as I typically do. I’m also not seeing as much interaction across groups as I’ve seen in the past, and I think the class size is a factor in that. I usually let students pick their groups, but I’m thinking it may be worthwhile to do some random grouping to encourage more cross-group interactions during labs or problems. That may also help with the fact that I can’t spend as much time with students as I’d like; if a student I’ve spent some time coaching visits another group to help, that might magnify the impact of the time I spend coaching individuals or small groups.

Physics

Last year, we really struggled with getting students to interact effectively. As a result, the other physics teacher and I agreed to put significant focus on teaching students to collaborate effectively. We’ve been assigning random groups that change almost every day, we started the year assigning roles within each group, and we have been including some kind of reflection on scientific abilities, including collaboration, on every packet. As a result, students are getting much more out of their time in small groups than last year and there is a much better class culture.

One of the problems I ran into last year is I took for granted that students had already learned how to be an effective student in a physics class, even if they had the other physics teacher, since we are very in-sync. However, students who came to me from the other teacher did not automatically transfer skills from their other physics class and students had been shuffled enough between sections that there was not a good sense of community. This year, I will be keeping that in mind and plan to return to the structures and strategies I used to teach how to be a physics student back in September to try for a smoother transition.

Chemistry Essentials

This year, I am co-teaching the course with a special education teacher for the first time, and it has been a great experience. Not only does my co-teacher have some background in chemistry, but we have very similar beliefs about what a science class should look like and accomplish, which means we can focus on how to effectively teach our students, rather than on navigating conflicting perspectives. So far, I’ve lead the majority of the whole-class instruction, but we both move between groups supporting students during small-group work. Since next trimester will be a repeat of this one, but with different students, we are planning to split much more of the direct instruction.

Last year was my first time teaching the first trimester of the course, so this year I’ve been making more significant modifications to the curriculum. I brought in a lot more graph interpretation to develop new concepts, and found students really struggle with reading graphs and identifying important features. Going into tri 2, my co-teacher and I are thinking about ways to do a much better job of teaching those skills to scaffold students toward meaningful graph interpretation.

Day 56: Final Exams

Today was our first day of final exams.

AP Physics 1: Practice Exam

I don’t actually have any AP Physics sections until tomorrow, but they will be taking roughly half of a practice exam. I trimmed it to fit into the 90 minute blocks we have for final exams, rather than 3 hours, as well as to limit it to material we’ve covered so far this year.

Physics: Lab Practical

Students took an individual final, then completed the “Catch the Loot” practical in small groups. Time was tight, so I didn’t have any groups today that were able to test their calculation. Given how satisfying this result is, it will be worth looking at how to adjust the timing if we repeat this lab next year. A lot of students will switch hours when the new term begins Monday, with many students even switching between me and the other physics teacher, so unfortunately it won’t be practical to give them the opportunity to try their prediction when the new term starts Monday.

 

Chemistry Essentials: Density Practical

Students took a short individual test, then did a density practical in groups. After finding the volume of a cylinder turned out to be a major barrier for a lot of students on a lab in September, I ordered some plastic centimeter cubes thinking they might make the lab more accessible. I decided the final would be a good opportunity to test out using them for the density lab and the results came out very nicely.

Day 55: Practicals, Multi-Model Problems, & Whiteboarding

AP Physics 1: Practicals

To review for final exams, I set up a couple of different lab practicals and let students choose which combination they’d like to work on.

Physics: Multi-Model Problems

Students worked on some problems that required them to use multiple models to prepare for the final exam. Last spring, the other physics teacher and I talked about trying to do a better job of spiraling content and, while we’ve taken what I consider some good steps, I could tell this is something we still need to improve on based where I saw students struggling today.

Chemistry Essentials: Whiteboarding

Each group picked a section of the review to be the class experts on. They white boarded their answers to the revenant problems and answered questions from classmates who were stuck on that section. The students who made use of the time seemed to leave feeling very good about the review.

 

Day 54: Model Summaries & Review

AP Physics 1 & Physics: Model Summaries

In both courses, I started the review by asking students to whiteboard model summaries for what we’ve covered so far this year. I asked them to sketch examples of the main diagram types, key formulas we used, and anything else they thought was important. It helped to frame each model as a tool kit and the model summary as a reminder of what tools are in each kit.


 

Chemistry Essentials: Review

In this class, I stuck with a pretty traditional review with a selection of problems from each topic so far this year.

Day 53: Day Before Break

Today was the last day to submit work or complete retakes before the end of the term and our last day of classes before Thanksgiving break, so it was a very chaotic day.

AP Physics 1: Whiteboarding

Students wrapped up presenting the whiteboards from yesterday. There was some really great discussion, with students making use of the matter model and connecting to the collisions we’d tested out a few days ago.

matter model.jpg

Physics: Whiteboarding

This class also worked on wrapping up whiteboarding some problems. My 6th hour had a really tough time focusing, which was not surprising the last hour of the day before a break. While we still got where we needed to, I don’t think a whiteboard discussion of problems was the right call for today.

Chemistry Essentials: Quiz

Students took their quiz on naming and formula writing for ionic and covalent bonds. Since it was fairly short, we spent some time before the quiz whiteboarding a few practice problems. A few students were focused on last-ditch efforts to raise their grade, and it was tough to re-direct them to the day’s activities. This will be something to think about at the end of next trimester.

Day 52: Mistakes Whiteboarding &Binary Compounds

AP Physics 1: Mistakes Whiteboarding

We started looking at some force problems involving Newton’s 3rd Law by doing some mistakes whiteboarding. There was a lot of good discussion on the directions of normal forces in problems where the normal doesn’t just go straight up.

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Physics: Mistakes Whiteboarding

This class also did mistakes whiteboarding, even with the same problems as in AP. Once again, there was a lot of good discussion on the direction of the normal forces.

reg wb.jpg

Chemistry Essentials: Binary Compounds

Students practiced translating between names and formulas for binary compounds. Most students took to this pretty quickly and easily, which was great to see.

Day 51: Problems, 3rd Law, & Covalent Bonds

AP Physics 1: Problems

Students worked some problems on balanced forces, with an emphasis on Newton’s 3rd Law. We also started talking a little bit about the final exam, which will be a modified practice AP exam.

Physics: 3rd Law

Students predicted how the forces would compare during a series of collisions, then we tested teach collision out using a a pair of force sensors with hoop springs attached. Partway through the testing, a few students made the connection to Newton’s 3rd Law, which was fun to see.

n3l

Chemistry Essentials: Covalent Bonds

I introduced students to covalent bonding today. We aren’t going into much depth on figuring out the formulas, but we did take some time today to sketch electron diagrams (simplified Lewis dot structures) to get at what is going on during a covalent bond.

11.19 Covalent Bonding Example.jpg

Day 50: 3rd Law, Elevator, & 2 Truths

AP Physics 1: 3rd Law

We took some time for students to generate a rule based on the collisions we observed yesterday. A few students connected the results to Newton’s 3rd Law and we were able to connect the results to the system schema, showing there was a single interaction between the carts.

 

Physics: Elevator

We finished discussing a video of a balance during an elevator ride to figure out which way the elevator was moving. At first, a few students thought I might have ridden the elevator down, then up to get the two different accelerations, but the class was very successful at working through why a single ride needs two different accelerations.

 

Chemistry Essentials: 2 Truths & a Lie

To continue practicing formula writing and naming, we played “Two Truths & a Lie”. Each group prepped a whiteboard with two correct names and formulas, and one name and formula with an error. This class struggles with whole-class discussion, but this has produced some good small-group discussion. One student came up to me during class to say she really likes the formula writing since it’s allowing her to talk more like a chemist and understand what the formulas mean, which was cool to hear.

2 truths.jpg

Day 49: Newton’s 3rd Law, Whiteboarding, & Polyatomic Ions

AP Physics 1: Newton’s 3rd Law

Students predicted the relative forces on two carts in various collisions, then we tested them using a pair of carts with force sensors. I really like using hoop springs for this since it gives a very clear visual in addition to the force vs. time graphs.

 

Physics: Whiteboarding

Students whiteboarded the problems they worked on yesterday for a gallery walk. We set up the packet to re-use the problems we had that just deal with representations.

phys force prob.jpg

After discussing the problems, I showed students a video I’d recorded on our elevator and asked them to write a CER for whether I took the elevator up or down.

 

Chemistry Essentials: Polyatomic Ions

We added polyatomic ions to the formula writing we’ve been doing. Students seem to be getting the hang of how to figure out the formula. Some students have figured out the “flop and drop” strategy, and others are opting to draw the simplified Lewis dot structures we’ve been using when they get stuck.

11.15 Polyatomic Ion Example.jpg

Day 48: Mistakes Whiteboarding, Problems, & Mistakes Worksheet

AP Physics 1: Mistakes Whiteboarding

We did mistakes whiteboarding for yesterday’s problems. I had students focus on the diagrams and the set-up for their whiteboards, rather than worrying about getting all the way to a correct answer during the discussion. I overheard a lot of students who wanted to get the answer on their whiteboards comment they couldn’t do the problem without a correct diagram, which tells me they are seeing how to use the diagrams.

Physics: Problems

Students worked on some calculations with unbalanced forces. I’m really liking the pairing of motion maps with vector addition diagrams; this has been a light bulb moment for me of why motion maps are useful.

vad mm.jpg

Chemistry Essentials: Mistakes Worksheet

Students worked on some written problems where they had to determine whether a given formula was reasonable. I intentionally included some metals with multiple possible charges, so they would have to consider each possibility before ruling out the formula. After students had worked, they whiteboarded the problems for a gallery walk.

chem wb