What a day: grade 7 and 8s both wrote Math tests, and the grade 8s had their essays returned. Take some time tonight to look over your child's essay rubric. If your child is disappointed with his or her grade, encourage him/her to speak with me. I have made it clear to the kids that I want them to learn this skill before leaving my class.
What's next: it's highly probable that we will be dealing with probability (7 and 8). In preparation for this unit, you should become familiar with a deck of cards.
Some basic facts:
1. There are 52 cards in the deck
2. The deck is divided into four suits: hearts, clubs, diamonds, and spades.
3. There are 13 cards within each suit: ace, two, three...ten, jack, queen, king. There are four of each type of card within the deck (e.g. 4 aces, 4 twos, 4 threes, 4 fours...)
4. The Jack, Queen, and King are called "Face cards", because they have faces.
5. In the game of Blackjack (or 21), face cards are worth 10, the numbered cards are worth their number (e.g. 7 of clubs is 7), and an Ace is either worth 1 or 11, whichever case is best. The goal is to get as close to a total of 21 without going over (busting). E.g. Ace + 5 + 7 + 8 = 21. Ace + 10 = 21. Ten + Jack + Ace = 21
So: quick challenges:
a. Given a new deck, what is the probability of randomly selected a red card?
b. What is the probability of selecting a face card?
c. If five cards have already been handed out (A, 4, J, Q, Q), then what is the probability of pulling a Jack as the next card?
No comments:
Post a Comment