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Excretory
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BIBLIOGRAPHY

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Composition
Water 1.4 L/day
Urea 1820 mg/100mL
Creatinine 196 mg/100mL
Uric acid 42 mg/100mL
Chloride ion 134 mEq/L
Sodium ion 128 mEq/L
Potassium ion 60 mEq/L
Bicarbonate ion 14 mEq/L

If I'm teaching an algebra course, for example, someone might want to learn about famous women mathematicians. Or maybe I'm teaching English this term and my students are curious about Shakespeare's life or Elizabethan England. I will use this page to give students what they're looking for by going into depth about my subject.

Here's an example of the type of material I could include:

African Mathematics

There is evidence to suggest that African Mathematics began more than 8000 years ago. A carved bone dating from between 9000 BC and 6500 BC was found at Ishango in Zaire. The markings indicate that these prehistoric people used a base-10 number system (just like we do) and were familiar with prime numbers and the operation of multiplying by 2. A series of notches on the Ishango bone appear to approximate a lunar calendar, suggesting a fairly sophisticated knowledge of astronomy.

Related Links

In this area I might include links with more information on subjects we've discussed in class.

For example, this site offers the history of word meanings:

www.oed.com

Be sure to send me suggestions for the next In Depth segment.

How The Wastes Come Out