Wednesday, March 3, 2010

Persistence

In my classroom, just inside the door there is a piece of construction paper with a word printed on it. This word, which is changed weekly, is meant to give students an opportunity to reflect on their behavior, attitude, and state of mind. And though I can't remember what the word is this week (or last), I found myself this evening reflecting on the word persistence. So I looked it up: to persist, meaning to go on resolutely or stubbornly in spite of difficulties. I had originally been considering this word, because of some of my recent interactions with students have left me wondering whether they can or even want to persist, in biology or high school. I feel like I have seen enough to know that students have a stubborn nature, but I rarely see it applied to their schoolwork. But on those occasions when I do see it, I am inspired. I am proud to spend time after the bell working with a student to finish the day's assignment.

So tonight, I continued to consider persistence, in the context of my own life. In particular, I am thinking about my need (and to some degree desire) to understand the crystal structure of cadmium minerals. I have been having serious difficulty understanding the concept of symmetry elements and operations, the three-dimensional arrangement of atoms, and the extensive crystallographic language that is used to describe the whole thing. I have four books from the library on crystal chemistry and mineralogy. I've spent two weekends building paper and Styrofoam and toothpick models of mineral structures. And I still don't really understand how 6mm is different from 6mc. But I know that I can't give up, I have to persist.

So, I understand that biology isn't the most interesting thing on the planet. (I say this with a full knowledge that biology might well be the most interesting thing on the planet.) And I know that it is way way way above crystal structures and mineralogy on the list. But perhaps the key to really learning either one is persistence.

Thursday, February 11, 2010

You Are What You Eat

A new semester and a new class full of students to get to know. First hour biology is replacing my previous environmental science class. I understand that many of the ES students have moved on to bigger and better things: mostly microbiology. I wish them the best of luck.

No class on yesterday due to the snowstorm, but Monday was an investigation of food to determine major biomolecules. Students tested pizza, chips, bologna, sugar, and apple for sugars, starch, protein and lipids. I only got to witness the beginning of the lab, but I thought that the students enjoyed it. It will be interesting to return next week and determine whether the concepts have been absorbed or not. I also wonder whether they will examine what they have tested and compare it with the foods that they eat on a regular basis. For example, it was quite difficult to get a positive reading from the protein test with the pizza, despite having cheese - and maybe that will make students question eating pizza as their source of protein in the future?