scribepost for March14,2009

The number for number of the day was 2468.135

AFTER NUMBER OF THE DAY, WE WROTE DOWN SOME MORE PROBABILITY NOTES:

RANDOM: an event in which every outcome has an equal chance of occuring.
EXPERIMENTAL PROBABILITY: the probability of an event occuring baced on experimental results.
THEORETICAL PROBABILITY: the expected probability of an event occuring.

EG. Flipping a coin.

THEORETICAL PROBABILITY:
5 HEADS 5 TAILS

EXPERIMENTAL PROBABILITY: [ we flipped a coin 10 times ]
HEADS: 4 TAILS: 6

*The larger or more trials in an experiment, the closer experimental probability gets to theoretical probability.

AFTER WE WROTE DOWN THOSE NOTES, WE WENT INTO PG. 180 (1-11) IN MATH LINKS.

I choose Joshua for the next scribepost.

Scribe Post for Feb.6 2009

Today in Math, we did Number of the Day.
The number was: 7156.248 If you didn't finish this in class, it is homework.

After Number of the Day, we did another worksheet for our Provincial folder:

Mental Math

Solve the following problems in your head.

Describe as many methods as you can to solve each.

1. 132 / 6=
2. 56 - 7=
3. 3290 + 90=
4. 35000 + 6000=
5. 873 - 752=
6. 40 x 90=
7. 17 x 90=
8. 312 + 673=
9. 50 x 40=
10. 0.99 - 0.76=

You can just solve these on a piece of loose leaf.

Homework for the weekend:

Make an addition, subtraction, multiplication and division algebraic question, where the letter or variable equals to 6. Then solve and verify your own questions.

Eg.:

1. A + 1 = 2

A + 1 - 1 = 4 - 1

A = 3

Verify:

A + 1 = 4

3 + 1 = 4

4 = 4

2. A - 1 = 2

A - 1 + 1 = 2 + 1

A = 3

Verify:

A - 1 = 2

3 - 1 = 2

2 = 2

3. 2A/2 = 6/2

A = 3

Verify:

2A = 6

2(3) = 6

6 = 6

4. A / 3 = 1
A / 3 x 3 = 1 x3
A = 3

Verify:

A / 3 = 1

3 / 3 =1

1 = 1

The PURPLE means it's boxed.

If I missed anything or if you spotted any mistakes, please leave a comment.

REMINDER: The test for next week is going to be on Wednesday.

I pick Allysa for the next scribepost.