We are beginning to approach the end of our Probability Unit. The students have been working hard to distinguish between each of the following:
1. "and"/"or" probability
2. theoretical/experimental probability
3. fair/unfair games
4. independent/dependent events
In addition, we've been talking about different ways to express sample spaces and how to predict the number of times a certain outcome would occur based on probability.
As we wrap up this unit, please consider the following questions as some dinner table conversation and see how much your student has learned so far this year!
1. Jon and Harry are playing a game with a number cube. Jon gets a point if the number cube lands on an odd number. Harry gets 3 points if the number cube lands on a 5. Is this a fair game?
2. Rachel flips a coin 12 times and gets heads 7 times and tails 5 times. What is the probability that she will land on heads the next time she flips?
3. What is the probability of flipping a head on a fair coin and rolling a 6 on a number cube?
4. What is the probability of flipping a head on a fair coin or rolling a 6 on a number cube?
5. You have a bag of 6 snickers, 12 milky way, and 2 almond joy candy bars. What is the probability that you would pick a snickers and then an almond joy?
6. There are 25 stink bugs and 10 ladybugs in Mrs. Critzer's sunroom. What would be the probability of a 4 stink bugs landing on her head, assuming once they land there they stay there?
Early next week we will begin to talk about combinations and permutations.
Have a great weekend!
Friday, September 24, 2010
Tuesday, September 14, 2010
Back-to-School Night
Thanks to all of those families who could make it to Back to School Night tonight. We enjoyed seeing you and sharing what we have been working on.
If you were unable to make it and have questions, please feel free to contact us.
If you were unable to make it and have questions, please feel free to contact us.
Saturday, September 11, 2010
Computer Lab Fridays
In case your child has not shared...
Each Friday, we travel to the computer lab. In the lab, students are given a checklist of things that they must complete. Activities include interactive activities that reinforce concepts that we have already learned about, pre-lesson activities that give students exposure to future lessons, online math practice, which they will need for the online SOL, and vocabulary activities.
While some students work on the computer, Ms. Hoffman, Ms. Burrows, or Mrs. Critzer pull small groups of kids for remediation. Each teacher analyzes data from assessments done in class and specifies areas of need for more exposure with a certain concepts or skill as well as those areas that will require a whole new approach. We are very specific in creating these groups, paying attention to both the complexity of the skill or concept and the size of the remediation group. During the remediation time, students are in small groups and have an opportunity to earn credit back toward their assessment.
We began Computer Lab Fridays about a two years ago and it has been a wonderful experience for both the students and the adults.
As an extra bonus, those students who are not missing any work get to play games on the "walton 8" portaportal site for the last 15-20 minutes. This is their reward for working hard during the week and getting all of their work in on time!
You can check out our portaportal sites at: http://http://www.portaportal.com/ In the guest access box, type "jcritzer" for practice websites or "walton8" for games.
Each Friday, we travel to the computer lab. In the lab, students are given a checklist of things that they must complete. Activities include interactive activities that reinforce concepts that we have already learned about, pre-lesson activities that give students exposure to future lessons, online math practice, which they will need for the online SOL, and vocabulary activities.
While some students work on the computer, Ms. Hoffman, Ms. Burrows, or Mrs. Critzer pull small groups of kids for remediation. Each teacher analyzes data from assessments done in class and specifies areas of need for more exposure with a certain concepts or skill as well as those areas that will require a whole new approach. We are very specific in creating these groups, paying attention to both the complexity of the skill or concept and the size of the remediation group. During the remediation time, students are in small groups and have an opportunity to earn credit back toward their assessment.
We began Computer Lab Fridays about a two years ago and it has been a wonderful experience for both the students and the adults.
As an extra bonus, those students who are not missing any work get to play games on the "walton 8" portaportal site for the last 15-20 minutes. This is their reward for working hard during the week and getting all of their work in on time!
You can check out our portaportal sites at: http://http://www.portaportal.com/ In the guest access box, type "jcritzer" for practice websites or "walton8" for games.
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