For the non scientists out there, the alkali metals (the first group of the periodic table) are very very reactive. They don't occur in their elemental form in nature, because they react so rapidly with water or even air (oxygen). But, because I am teaching chemistry, the periodic nature of reactivity, and similar chemical properties of families, we (along with another crazy teacher in my science department) have decided to order lithium, sodium, and potassium for a demonstration of the high reactivity of alkali metals.
When I tutor students, I get to know them quite a bit better than the ones I teach as part of a class. They open up to me about anything and everything, and sometimes this lets me understand them better. I learn from them, just by listening. A thing that came up during one of my tutoring sessions (with a girl named Erin) was the use of names. She was complaining that one of her teachers only used terms of endearment to her students, instead of their proper names. So instead of calling Erin: Erin, she would say: "Sweetheart", or "Dear".
[img_assist|nid=717|title=|desc=|link=none|align=left|width=202|height=262] [img_assist|nid=718|title=|desc=|link=none|align=right|width=202|height=262] My young kid, 3 years old, loves to play on the computer. He likes to type, draw, color, whatever. The Internet is pretty sparse for good children's games, but I came across a site that seems have a lot of high quality activities. The website is in Polish, but the games are obvious.
When doing labs in the classroom, I need to be prepared to the nth degree. With the limited amount of time during a class (for setup, experiment, clean-up), for a smooth lab I need to be very organized. In fact, I do the lab myself ahead of time; I figure out what can go wrong, and then fix it before it gets to the kids. Actually, most of the time, I can't even predict what will go wrong when the students start playing around with the equipment, so I have to be flexible, very decisive when the time comes for the unfortunate event of a problem. In fact, things going wrong is a good thing.
There once was a fantastic television show called MacGuyver, which followed the adventures of the most exceptional problem solver you can think of. The show was not about characters or drama or action, although each episode had little bits of each. The show was about heaving MacGuyver ever-more-difficult problems to solve with ever-fewer resources.
Here's a tough problem: Suppose you are the publisher of a paper and you want to get an estimate of the quality. In particular, you want to estimate how many unfound grammar and spelling errors remain in a paper after it has passed through your editing staff. How, you might ask, could we possibly know how many errors haven't been found if we never find them? That sounds so obviously impossible that it's stupid to ask! Right?
Part of my job is being a spreadsheet monkey that analyzes or creates mountains of data. One of the things I love to do is find quick or elegant ways of doing things in Excel. Very commonly, I have to do is to take a cash flow stream that totals one number and "scale" it so that it totals a different number, but keep the relative amounts the same. For example, suppose you are budgeting the sales trip expenses for your department for next year. Usually you would start from this year's expenses, say they were $30,000 .