Here’s another attempt to create embeddable graphs of mathematical functions. This one allows users to enter the equation in text form, has the option to enter the domain of the function, and expects there to be multiple functions plotted at the same time. Instead of writing the plotting functions myself I used the FLOT plotting library.
Month: September 2013
The Eyes of the Spider
I’m taking a small group of kids hiking/cross-country running for Physical Education this quarter. With the heat wave of last week, and having to clear the trail up the hillslope, today was the first day we actually got all the way to the top of the ridge. On our way back down, one of my students had stopped to look at a frond of tiny, pretty flowers when she spotted this beautiful, yellow spider with its brilliantly, iridescent catch. We brought them back to the lab to look at it under the microscope. It’ll also be interesting to observe what the spider does with the fly.
White Blood Cell Hunts Down a Bacterium
One of my biology groups is doing a presentation on the immune system in the next few days. They decided that they needed to wander around the school asking any teacher they could find for interesting games they could use for a presentation. Mr. Schmitt, our new math teacher, recommended the neat video above of a white blood cell hunting down a bacterium. It’s pretty dramatic.
Community Supported Agriculture
This year we signed up for a CSA – Lee Farms in Truxton, Missouri – and we had the chance to visit this Sunday.
CSA stands for Community Supported Agriculture, and the way it works is that you sign up (and pay) ahead of time and the farmer gives you a box of produce from the farm every week for the growing season (May to October in Missouri). It helps the farmer by providing some more stable income, since the CSA members pay the same amount whether it’s a good season or not. The members get an interesting variety of fresh produce every week.
It was neat to see the farm, especially since they’re trying to minimize the amount of fertilizer and pesticides they’re using by working with etymologists and agriculturalists from the universities in the area. It would be a good place to visit with a class.