Working with data
Sorting and cleaning
Take one variable that you are interested in, sort the data.
Think about realistic outcomes for the variable.
What will you do with data that isn't realistic?

Using data cards to make displays
Pose a summary investigative question and use the data cards to make a display to help to answer the question.
Write I notice statements about your display looking at key features of your display.

Using dot plots
Pose comparison question (numerical data) and use the given data to make a dot plot to help answer your question.
Make I notice statements about your display, looking at key features and using the language of comparison.

MAKING MEASURES

- using the equipment

- identifying the measurement

- eliminating variability

Cross-curricula opportunities

questions for 2009 2009questionsc@s.doc

Making measures.doc can be found at:

http://www.censusatschool.org.nz/2009/information-packs/

Teacher data cards teacherdatacards.doc

Sorting and cleaning

Take one variable that you are interested in, sort the data.

Think about realistic outcomes for the variable.

What will you do with data that isn't realistic?

Karekare College KarekareCollegedatacards.xls

Pose a summary investigative question and use the data cards to make a display to help to answer the question.

Write I notice statements about your display looking at key features of your display.

Karekare College KarekareCollegedatacards.xls

Pose comparison question (numerical data) and use the given data to make a dot plot to help answer your question.

Make I notice statements about your display, looking at key features and using the language of comparison.

Sheets for making dot plots dotplotgrids.doc

Analysis ideas analysisideas.doc

Pfannkuch et al A teacherâ€™s guide to informal comparative reasoning or on CensusAtSchoolsite.

Posing own investigative questions

identifying features of good investigative questions

Paper being presented - What about the P in the PPDAC cycle? An initial look at posing questions for statistical investigation.

Lesson 2.doc

Sorting these into groups

Classifying groups

use to identify features of good investigative questions

posingquestionspractice.doc

posingquestionslevel4.doc

INFORMAL INFERENCE

Identify variables

Pose an investigative question to explore.

How will we answer this question?

Info about Karekare College data cards KarekareCollege.doc

Take a sample of 30 boys and 30 girls.

Working with data - Sorting and cleaning

Think about realistic outcomes for the variable.

What will you do with data that isn't realistic?

Graphing the data, use the data cards to make a dot plot.

Find median, UQ, LQ, plot the "box" onto pre-prepared axes.

Make I notice statements about the displays.

Repeat for second question

Does the time to school by bus tend to be greater than the time to school when walking for students at Karekare College?

OHTgraphblank.doc

CENSUS AT SCHOOL

Explore the four tabs: survey, 2009 data, classroom activities and new curriculum

Getting a random sample: 2009, 2007, 2005, 2003

Viewing using html, excel, fathom and tinkerplots

Making data cards for use with classes

A bit of a guide in the neck wrist cards, look at the first sheet, called introduction

Karekare College cards KarekareCollegedatacards.xls

Neck wrist cards year9data2005.xls