As part of a class I'll be teaching this year I introduce high school students of 15-16 year old to the basics of inorganic chemistry. (Salts, crystal water, solubility vs temp of solution, acid/base interactions and crystallization)
The methods and theory I've given a few years now and are for me quite satisfactory, but I'm wanting to not end it with a normal graded test.
It's my intention to give them +/- 10 hours in groups of 3-4 spread over a week (I have that time available) to do a project in which they apply (parts of) the theory and give a report on which I can grade them. Of course their practical actions are also part of the grade.
They will have access to the chemistry classroom and they are quite proficient in basic equipment such as Bunsen burners.
I have a number of projects they could try to crack in mind, but maybe some people here have ideas that could help me out. The idea is that it is doable, but it should be challenging.
I don't really care whether they succeed, but that they show the ability to apply the given theory experimentally and learn from their errors.
Some idea of projects I have in mind are:
Try to develop a method to determine as best as possible the types and amounts of salts in a sample (soil/water/food/etc)
Measure the carbonate and phosphate content of a soft drink as accurately as possible
Try to get large and unbroken crystals from a salt that dissolves exothermically
Find a way to layer a metal on top of a different metal in such a way that it sticks using a salt solution.
The methods and theory I've given a few years now and are for me quite satisfactory, but I'm wanting to not end it with a normal graded test.
It's my intention to give them +/- 10 hours in groups of 3-4 spread over a week (I have that time available) to do a project in which they apply (parts of) the theory and give a report on which I can grade them. Of course their practical actions are also part of the grade.
They will have access to the chemistry classroom and they are quite proficient in basic equipment such as Bunsen burners.
I have a number of projects they could try to crack in mind, but maybe some people here have ideas that could help me out. The idea is that it is doable, but it should be challenging.
I don't really care whether they succeed, but that they show the ability to apply the given theory experimentally and learn from their errors.
Some idea of projects I have in mind are:
Try to develop a method to determine as best as possible the types and amounts of salts in a sample (soil/water/food/etc)
Measure the carbonate and phosphate content of a soft drink as accurately as possible
Try to get large and unbroken crystals from a salt that dissolves exothermically
Find a way to layer a metal on top of a different metal in such a way that it sticks using a salt solution.
via International Skeptics Forum http://ift.tt/1Pyy1QB
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