Lesson Plan # 25 - Review of Lessons 15 -
23
- (5 min) Mental Math
- How many ways can I reorder the letters in the word "DESK"? [24]
- What is one third of one third of one third? [1/27]
- Multiply 2/3 by 1/4 and reduce [1/6]
- Start with 22, add 55, then divide by 7 [11]
- Which is larger, 1/4 or .255? [.255]
- (5 min) Review of homework #24 (<= 3 problems)
- (10 min) Review of the second half of the year:
- Find the mean, mode, median, and range of this set:
22, 11, 16, 18, 24, 11, 31 [Mean=19.0,mode=11,median=22,range=20]
- Probability of getting 2 red marbles out of a bag of 9 red, 5 blue
and 4 green marbles:
9 8 4
--- X --- = --- (have students do the canceling)
18 17 17
- How many ways to reorder the letters in these words:
GOALS MANY
5 X 4 X 3 X 2 X 1 = 120 4 X 3 X 2 X 1 = 24
- Hand out homework as students successfully complete the in-class
exercise.
Special note for Practice Competition #2 (Guess-and-Check):
If your students are still having trouble with guess-and-check, then you
might want to work through problem one together, then turn them loose on
the remaining problems.
|