HOME  Algebra 2: Chapter 13  PREV  NEXT 
GO TO CHAPTER:  1  2  3  4  5  6  7  8  9  10  11  12  13  14   
PAGE 1 OF 1  
Chapter 13  Exploring Trigonometric Functions 

Print Your Own Protractor Of course it is not going to be as accurate as a manufactured protractor, but in a pinch it can't be beat. Just print it, cut it out, and start measuring angles. You can also print a ruler here too. The site is by Lawrence Goetz of Brooklyn, New York. A good example of doing what it takes to get the job done! Click here to visit the site. 

Mathematics on a Golf Hole Interesting ideas for getting some practice measuring angles and distances! The lesson plan is by Nancy Powell at Bloomington High School in Bloomington, Illinois. Includes Protractor Golf (Adobe PDF file). Click here. 

Eratosthenes Related Sites


Snell's Law Related Sites


Trigonometry Formulas  The Math Forum The Math Forum's Ask Dr. Math "Trigonometry Formulas" page. Study this for another explanation of how to solve triangles when you know two sides and an angle (acute or obtuse) opposite one of the sides. Click here. 

Mass on a Spring The mass on a spring we discussed in class is easier to visualize using this JAVA applett. The difference is the graph shows each cycle continues at the same height as the first "release." This is showing an "ideal" system, one with no friction  so it goes on forever once you let go of the spring. This can exist only in an artificial world since in the real world friction will cause each cycle to be somewhat less than the first and this "dampening" of the oscillation will continue until the mass on the end of the spring comes to rest. Web site is from Michigan State University in East Lansing Michigan. Click here. 

TOP 
Questions about this site:
mathknowhow@hotmail.com