Thursday, October 18, 2007

Measurement #5

The muscles in the human eye move an estimated 100,000 times or more each day. (Source: Guiness Boof of Records 1993, edited by Peter Matthews [New York: Bantam Books, 1993])



a. About how many times do your eye muscles move in one year?

b. About how many movements do your eye muscles make in one second?

c. In about how many days will your eye muscles make 1,000,000 movements?



Total Points: 9 points

1 point for each letter answered (3 pts total)

2 points for ALL work shown and explained for each letter (6 pts total)

Monday, October 15, 2007

Measurement #13

You are planning to tile the floor of a rectangular room that is 15.5 feet by 18.5 feet in size, using square tiles. The tiles measure 12 inches on each side and are sold in boxes of 25. How many boxes of tiles do you need to complete the job? Explain your process.

Total Points: 4 points
Post: 2 points
Work is explained and shown: 1 point
Correct Answer: 1 points

Thursday, October 11, 2007

Geometry #3

Lines M and N do not intersect. Line P intersects line M to form a right angle. Which of the following is NOT true?

a. Lines P and N are parallel.
b. Lines M and N are parallel.
c. Lines P and M are perpendicular.
d. All three statements are true.

Explain your thoughts in words. You receive 2 points for posting, 1 point for explaining, and 1 point for the correct answer. Good luck :-)

Friday, October 5, 2007

Geometry #1

A quadrilateral MUST be a parallelogram if it has -

a. one pair of adjacent sides equal.
b. one pair of parallel sides.
c. a diagonal as an axis of symmetry.
d. two adjacent angles equal.
e. two pairs of parallel sides.

Write the letter of the answer that best finishes the sentence. Also, you MUST provide an explanation. Use what we have learned about properties of quadrilaterals. 2 points for posting, 2 points for explanation, and 1 point for correct answer for a total of 5 points.