Friday, May 20, 2016

Gray Area Conclusion

We've made it to the end of our Gray Area investigations.  Students have looked at acid rain, chlorine, sediments, phosphates, and oil as possible culprits in our mystery.  Today we had an emergency board meeting to go over all the evidence and draw conclusions about the most likely reasons for the dying fish.  Students justified their votes with evidence and found that the answer wasn't as cut and dry as they may have thought.  As in real life, with so many elements at play, there is often a lot of "gray area" when it comes to making the best choices for us and our environment.  We also looked at possible solutions to the problems we've discovered and pros and cons of those as well.  I was proud of all of the students work, ideas, ability to think through different layers of the issues, and the connections they made to our overarching systems theme.






We finished with a little year-in-review game.  Students answered some systems questions using Kahoot and their responses earned them some positive or not-so-positive inputs to their forest and pond snack ecosystems.  A little acid rain with that dirt dessert?!? :)  I don't think there exists a quirkier, brighter, sweeter, or more fun group of kids!  I can't say enough how much I have enjoyed my Fridays this year!  They will surely be missed!

Friday, May 6, 2016

Phosphates and Algal Blooms

Our Gray Area investigators were hot on a new trail today as they conducted various tests to determine if phosphate from fertilizer or manure might be causing an algal bloom in James Pond. With their eyes on the cattle ranch, small town, and golf course, they discovered algal blooms result from excessive algae growth and as the overabundant algae rots away it causes bacteria to use up all the oxygen in the water and causes negative effects on fish populations.  Ask your student who we discovered our new leading suspect to be!