Room: 28
Learning Objectives
Grade D
To be able to design questionnaires and
surveys which allow us to answer a question.
Can you list the mistakes people commonly
make when wording questionnaires? Why might they word questionnaire in this way
on purpose?
Grade C
To demonstrate how to use and why we use
simple sample methods.
What are the advantages and disadvantages
of using sampling?
Grade B
To be able to demonstrate the use of
stratified sampling.
We use a stratified sample to survey boys
and girls in a school. We survey 24 boys and 36 girls, there are 1200 students
in the school, how many are boys?
Resources
Grade D
Questionnaire Worksheet
Grade C
Watch these two videos. Which is the most reliable survey? Can either survey be trusted?
Ten Ticks, 7-8, 6, page 43
MEP, 8, page 51
Grade B
Learning Objective for next lesson:
Grade E
To be able to calculate all the outcomes of two independent events (such as tossing a coin & throwing a dice) and calculate probabilities from lists or tables
What is the probability of throwing a total of 7 on two dice?
Grade C
To be able to demonstrate how to use a Tree Diagram to find every combination.
Without drawing a tree diagram can you tell how many outcomes there will be?
Grade B
To be able to explain how to use a tree diagram to work out the probability of combined events.
How do we calculate the probability of two both events happening?
