Bruce Moody - Statistics & Probability

Statistics

PPDAC -

 P-Pose ( Question) What kind of a question that leads to data and analysis

P-Plan

D- Data

A- Analyse

C- Conclusions

Is actually good for children to go through a cycle, invisage the cycle . Once the you have concluded, it keeps going.leading from one investigation to another.

Children needs to know that statistics change the world.

Has to have a purpose for a statistical investigation.

For Eg- How many colours on each table, collected the data ,then teacher said this table needs more white or more red. So need to go further after investigation, need to have a reason or suggestion, that gives children the statistical to make a claim. What are we gonna do with this information ?

In class after lunch, the children had to read mandatory. The teacher collected the info -
Teacher read  - 15 & Self reading - 10

The class decided 3 days the teacher would read and 2 days self read. There are no losers or winners. Children learnt that outcome helps to make decision and respond.

More  & Most

It’s quite a crucial

Do not use the word most unless more than half the votes are there for a certain thing.

Changing the vote system have a big impact on the results. For eg if each child is allowed to have 2 votes instead of 1 , it  totally reverse the situations. Which is your favourite ice cream? Which will be the best one for the class? will change the result when they are allowed to do 2 votes.

Don’t do it with your children.

Make sure the question is worded properly

Be aware of two terms - Favourite and common.

Linking the word favourite with something they have no control. Favourite - eye colour

Favourite is okay for an opinion. Hokey pokey ice cream is a favourite

Pie Graph for young learners  - Google circle marked into sectors. Children cut it out and colour their own sector and put the same colour together and put in a circle and make a pie chart. Children can read the pie chart without knowing what a pie chart is.

Tally chart is to organise the data. Use ice block sticks to do a tally chart.Do it physically first , then you can draw the sticks telling chn instead of physically collecting.

Bi - Virate - Having two variables - How many people likes Hokey pokey Ice cream & who likes more - boys or girls.
Multi - Variate- Asking or posing a question that has lots of variates - collecting two or more data simultaneously. Flying dart - Boys & Girls, darts with twisted nose or twisted tails.
Statistical Literacy -
Level 3 - spend less time collecting the data instead on posing and analysing.

Probability

Probability is based on Statistics.

Eg - Chn went on a trip at mount, the teacher asked them

What did you see?

If we went again would we see fantail?

The Chn answered the second question in response to what they saw - statistics.

Looking at data helps making a prediction  - probability

Variation & Outcome

Variation is normal.

When u flip a coin 10 times, would you get 5 heads & 5 tails ?

Chn might think yes, but its no , need to tell Chn variation is normal.