Acknowledgments

Jerry Russell and Vasilii Petrenko would like to thank the following people for their help in preparing and implementing this unit and in putting together this Picture of Practice:

Martha Stone Wiske at the Harvard Graduate School of Education for introducing us both to the TfU framework, to each other, and for helping to focus our efforts in designing this unit. We would also like to thank her for her generous financial support of the unit, providing a web environment for the unit website, and helping out as a chaperone on our field trip. Finally, we would like to thank her for all her direction and advice in designing this picture of practice.

Donily Corr and Jenn Raley Miller at the Harvard Graduate School of Education. Donily for her tireless efforts in creating and maintaining the unit website and for her help with designing this picture of practice. Jenn for her web design expertise in putting all the pieces of our unit together to create this picture of practice.

Neil Clark, Judy McClure, and Winnie Walsh at the MWRA for their untiring enthusiasm and support for Water Quality educational endeavors and all the advice and materials they provided us with.

Michael Sullivan at Boston Latin Academy for his enthusiasm, advice, and support for this unit; and for bringing us those cokes after a very long afternoon in the lab!

Rebekah Randall at Boston Latin Academy for giving her time, energy, and knowledge of the Latin Academy students in helping us chaperone the field trip.

Anne Pfitzner at the Harvard Graduate School of Education for her time, energy, and enthusiasm in helping us chaperone the field trip.

The Chemistry Faculty at Boston Latin Academy for their flexibility and willingness to accommodate our intensive use of the laboratories.

Laura Matlack for letting Vasilii use her magnificent Saab to get to BLA.

Tom Gilbert at Northeastern University for generously lending us CBL probes to use in this unit.

Greg Tucci at the Harvard University Chemistry Department for lending us equipment to use in the unit.

Robyn Johnson and Scott Holman at Vernier Software for answering our questions about the various water quality tests.

Linda Chisom at the Harvard Graduate School of Education for her administrative help with the materials.