| Lesson Plans |
| Including comments, suggestions for improvement, alternatives to labs, and any possible simplifications |
 |
|
| Equipment and Ordering Info |
 |
Here is a list of the equipment we needed to conduct the unit with 3 Chemistry classes (72 students total). Some ordering information is included.
3 Testing kits from the MWRA
8 Thermometers
pH indicator paper - 5 rolls
100 sterile whirlpack bags
8 1000 ml filter flasks
8 Buchner Funnels with sleeves
Hoses for vacuum filtration & sink vacuum setups
200 sterile 0.45 micron membrane filters
200 mFC broth / Rosolic Acid ampoules
200 sterile petri dishes
100 absorbent pads for petri dishes
Ethanol - 500ml
Bunsen burners
Incubator
Metal forceps
Distilled water
8 400ml beakers
Sterile pipettes (1ml & 10ml)
Sterile disposable plastic pipettes
8 sterile 50ml graduated cylinders
Waterproof markers
Total Hardness Reagent kit - 100 tests:
- Hardness 1 buffer solution
- Calmagite indicator powder pillows
- 0.01M EDTA titrant
4 250ml Erlenmeyer flasks
4 50 ml burets
TI Graphing Calculators
6 CBL setups with DO probes
Small sampling bottles
Disposal bottles
Ice chest
|
|
Some Ordering Info:
All of the following can be ordered from the Hach supply company:
1-800-227-4224 or www.hach.com
| Item |
Number |
Price |
| Whirlpack bags |
22331-99 |
$15.11 for 100 |
| 0.45 micron membrane filters |
13530-01 |
$94.34 for 200 |
| mFC broth / Rosolic Acid ampoules |
24285-10 |
$19.08 for 20 |
| Sterile petri dishes |
14852-99 |
$27.30 for 100 |
| Absorbent pads for petri dishes |
14918-00 |
$111.30 for 1000 |
| Total Hardness Reagent kit |
24476-00 |
$27.75 for 100 tests |
TI Calculators and CBL Equipment:
TI does not sell graphing calculators or other products but uses TI Instructional Products dealers who normally will stock the full range of calculators, CBL's, probes and accessories.
Vernier Software will sell their products directly to the public and they even have an online store.
The Mathematical Association of America has a special program that will sell TI products at a reduced rate to school systems with underrepresented student populations.
|
| References, Links, Resources |
 |
Here are some of the books, publications, and websites that we have found the most useful in implementing this unit:
Johnson, R.L., Holman, S., and Holmquist, D. (1998). Water Quality with CBL, Vernier Software, Beaverton, OR.
Massachusetts Water Resources Authority. Water Quality: A Field-based Water Quality Testing Program for Middle Schools and High Schools, Boston, MA.
Wiske, M. S., ed. (1998). Teaching for Understanding: Linking Research with Practice. San Francisco: Jossey-Bass.
Boston Latin Academy
Charles River Watershed Association
Massachusetts Water Resources Authority
United States Geologic Survey Water Science for Schools
Environmental Protection Agency
|
