Core Competency Chemistry 12

Collaboration

Completed titration with oxalic acid and sodium hydroxide

During our Chemistry 12 titration experiment, I can confidently say that I worked effectively with my partner to achieve our goal of determining the concentration of NaOH. We had to titrate a primary standard 0.050M oxalic acid solution with a unknown concentration of NaOH. I was able to take on specific roles and responsibilities like preparing the 0.050M oxalic acid solution, managing the burette, monitoring the Erlenmeyer flask, and recording data to ensure precision and accuracy. It is difficult to do titrations because the volume of NaOH we add must be perfect or else we’ve over shot it and the solution will be “over-titrated”. But because of our collaborative efforts it highlighted our ability to communicate clearly and support each other, leading to successful and reliable results after 4 trials of titrations. This lab improved my ability to work in a team and take on responsibilities within a partnership to achieve a common objective.

A & P 12

Cell Membrane Lab

This is the dialysis tube containing starch, 24 hours after IKI and water has diffused through the membrane and into the tube.

Collaborating

I worked with others to achieve our goal. My lab partner and I had to help each other to tie the ends of the tubes. We needed to collaborate and make sure we got the correct amount of starch in the tube. We also worked together to ensure there were no air bubbles and tied it differently a couple times to get it as close as possible. I made sure we were clear on the common purpose of the lab by talking through everything, and explaining anything that wasn’t understood. For example we were a little confused about when to add in the IKI but after talking it out and asking questions we understood what to do.

Critical Thinking

I analyzed evidence to make judgements. After 24 hours of diffusion the starch in the dialysis tube turned very blue. I used this evidence to make a judgement that the IKI entered into the tube and changed the colour of the starch. Further evidence is that the water in the beaker was no longer yellow meaning the IKI must have diffused somewhere else. Also, I remained open-minded as I explored different options because I had no idea if my hypothesis would be supported or not. But I was able to make a judgement after the lab that supported my hypothesis.

Core Competency Self-Assessment

Communication

Titration Lab

During this lab my partner and I (Juheon) had to use collaboration to achieve this pink colour. We had many rough trials where we over shot it and the pink became too bright. But after talking it through we were able to realize what our mistakes were and we used each of our strengths to become successful. The best way we shared ideas was talking about it and writing down our thoughts / notes during the demo. Next time though I would try to make a plan before hand so we can get it right quicker.

Core Competency Self-Assessment

Collaborating

This is a photo of the Rube Goldberg Machine that Nikta, Natalya, and I created.

Collaborating is something my group did a lot. The goal of our machine was to break the fortune cookie. We had some troubles trying to figure out how to do that. Because of our problem we had to collaborate very much and it thought me some new things. We FaceTimed each other to try to experiment at home as to how we would build it at school. I definitely learned the importance of collaborating and communication in general. When any of us had ideas we would build off of it and create an even better idea all together. I think the success of our project really showed that. I think
I would still like to continue in being more patient with my group. I have always had trouble trying to understand other perspectives but doing collaborative things like this has really helped me improve on myself. Overall I am very proud of what we accomplished with each others help and collaboration.

Videos:

This is a clip of us experimenting of FaceTime
This is a clip of our machine in action