Algebra: Chapter 6-6 and 6-7, p 281 and 283
Factoring by Grouping – Day 2 (due to Challenge Day) – Wednesday
Today was a work day for students with missing work to get caught up. Some of us were not in class due to the CHALLENGE DAY activity.
Factoring a General Strategy – Thursday
To factor polynomials:
- Always look first for a common factor
- Then look at the number of terms
- 2 terms – determine whether you have a difference of 2 squares
- 3 terms – determine whether the trinomial is a square of a binomial. If not, test the factors of the terms.
- Always factor completely
Don’t forget the X and BOX METHODS!
Math-8, Chapter 9-1 and 9-3, p 432 and 440
Ratios and Rates – Day 2 (due to Challenge Day) – Wednesday
Today was a work day for students with missing work to get caught up. Some of us were not in class due to the CHALLENGE DAY activity.
Here, however is a link about ratios and rates.
Simple Probability – Thursday
A definition: Probability = (number of ways a certain outcome can occur) รท (number of possible outcomes). Probability is always expressed with `P` and the shorthand is `P(green)` is read as the probability of the color being green. Probability is always expressed as a fraction, percentage or value `0 < P < 1` or between 0 and 100%. A value of 0 means the probability is not possible, or impossible or it can’t happen. A value of 1 (or 100%) means that the probability is a certainty, or it will happen!
A 50-50 probability is 50% which is 1/2 or 0.5
Examples:
- Since a die has 6 values, namely 1, 2, 3, 4, 5 and 6, the probability of rolling, with just 1 die, an even number is 3 out of 6, because the even numbers are 2, 4 and 6 (a total of 3 numbers) out of a total possible of 6. 3 out of 6 = 3/6 or 1/2 or 50% or 0.5.
- The probability of drawing a DIAMOND in a 52 card deck of cards is 13 out of 52. There are 13 DIAMONDS in a deck, so the probability is 13/52 or 1/4 or 25% or 0.25.