1 / 11

Probability

Probability. Whole Class Explicit Teaching. Language of chance . Chance is the likelihood that something will happen. If something will definitely happen, we say it is certain . If something might happen, we say it is likely . If something might not happen, we say it is unlikely .

admon
Download Presentation

Probability

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Probability Whole Class Explicit Teaching

  2. Language of chance • Chance is the likelihood that something will happen. • If something will definitely happen, we say it is certain. • If something might happen, we say it is likely. • If something might not happen, we say it is unlikely. • If something will definitely not happen, we say it is impossible.

  3. Language of chance • Describe the likelihood of each event occurring as either: • impossible (I), unlikely (U), likely (L), certain (C) or even-chance (E) • Christmas Day will fall on December 25 this year • It will rain somewhere in Australia tomorrow • The sun will still be visible at midnight tonight in Sydney • An Australian golfer will win all major championships this year • Every student in our class will score 100% in the next Maths test • A second moon of the same size will be discovered orbiting Earth • You will eventually buy your own house or unit • A card is chosen from a pack of 52 playing cards and is either red or black • The numbers 1 to 10 are written on separate pieces of paper, placed in a bag and the number 13 is drawn out

  4. Ordering events • As we know Chance is the likelihood that something will happen. • If something will definitely happen, we say it is certain. • If something might happen, we say it is likely. • If something might not happen, we say it is unlikely. • If something will definitely not happen, we say it is impossible. • We can use a line to show the order of chance events happening.

  5. Ordering events • We can use the line to help us order chance events. • Assign chance words to these events and then place them in order from least likely to happen to most likely. • Someone will win first prize in LOTTO next week • A coin is tossed and the result is a tail • At least 5 students will be absent from our school on the next school day • Every student in our class is a girl • A number between 1 and 6 will be shown when a die is rolled

  6. Ordering events using fractions

  7. Ordering events using fractions • The following counters are in the bag: 4 red, 6 yellow and 2 green. • Record the expected probability of choosing each colour using a fraction. • Remember that when finding the chance or likelihood of an event occurring, we must look at all possible outcomes.

  8. Ordering events using fractions

  9. Chance experiments Tossing 2 coins.

  10. Chance experiments • We will conduct this experiment together. • Notice we are using the same table but have just extended it to include the extra times we are going to toss the coin. • How many possible outcomes are there? • What are your predicted outcomes? • Is it possible to get 8 TT?

  11. Chance experiments and variations in results • Last week we conducted this chance experiment. • Would you expect to get the same results again if we tried again this week? Why/Why not?

More Related