Resources by J. Saunders - ��Ӱֱ��

Level 7 Statistical Investigations, Kiwi Kapers 1, 2 and 3

Rachel — Wed, 28 Nov 2012 11:01:46 +0000

An overview of how to use Kiwi Kapers 1, 2 and 3 to guide students through the process of making a point estimate through to interpreting informal confidence intervals.

Kiwi Kapers 1 – Use the PPDAC cycle to start to develop the ideas of using a sample to represent a population and of sampling variation.

Kiwi Kapers 2 – explore what sample size we want to be reasonably sure that the inference(s) we make are representative of the population.

Kiwi Kapers 3 – aim to develop a method for finding informal confidence intervals for medians.

Resources:

as referred to in the ppt

Kiwi Kapers written by P. Arnold.

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Tell it like it is!

Rachel — Wed, 23 Feb 2011 02:08:45 +0000

One of the most important aspects of statistics is writing your conclusion. It can be compared to reading the last chapter in a book or writing your final paragraph in an essay.

What we can conclude from some data we are given? Often students have plenty of practise drawing graphs and calculating statistics. This activity concentrates on the C part of the PPDAC cycle and provides and opportunity and writing frame for students to write conclusions about students who filled out the C@S online survey.

Resources:

Achievement Objectives

Level 5
- S5-1Plan and conduct surveys and experiments using the statistical enquiry cycle
  - F presenting a report of findings

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Ready, steady, go

Rachel — Wed, 11 Jun 2008 00:04:39 +0000

Do Year 10 students have faster reaction times than Year 5 students? The focus of this lesson is on comparing two samples and making an inference about populations from samples.
Students analyse samples in groups. Each group has different samples. Groups report back with OHT of own graphs and conclusions. Teacher uses CensusAtSchool online to demonstrate effect of larger samples on inferences and to show population distribution.

Resources:

Achievement Objectives

Level 6
- S6-1Plan and conduct investigations using the statistical enquiry cycle
  - A justifying the variables and measures used
  - C identifying and communicating features in context (trends, relationships between variables, and differences within and between distributions), using multiple displays
  - D making informal inferences about populations from sample data
  - E justifying findings, using displays and measures

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Nosey Parker 1

Rachel — Sun, 08 Jun 2008 13:23:16 +0000

After this lesson the students will:

Be able to read a multivariate data table
Know how to ask questions of data
Know how to use “I notice… I wonder…” statements.
Have a list of questions that can be explored using statistical methods (this will be used in future lessons).

Students are given a multivariate table with a sample of 25 from the C@S database. 7 variables are explored. This activity encourages students (and teachers) to start thinking about new questions that can be posed about the dataset as a whole. The students are beginning to ‘ask questions of the data’. Once we have a question or a hypothesis we can then start to reason with the data and come to a new understanding of the whole dataset in the multivariate table. Students will generate all sorts of statements/questions, some of which cannot be answered using the data alone and might involve collecting other information.

The statements can be used in any maths lesson. They are useful phrases that help to engage the students in noticing and exploring patterns and ideas.

Resources:

Level 3-4-5

Achievement Objectives

Level 3
- S3-1 Conduct investigations using the statistical enquiry cycle
  - B identifying patterns and trends in context, within and between data sets
Level 4
- S4-1 Plan and conduct investigations using the statistical enquiry cycle
  - B gathering, sorting, and displaying multivariate category, measurement, and time-series data to detect patterns, variations, relationships, and trends
Level 5
- S5-1 Plan and conduct surveys and experiments using the statistical enquiry cycle
  - D using multiple displays, and re-categorising data to find patterns, variations, relationships, and trends in multivariate data sets

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Nosey Parker 2

cre8d — Fri, 06 Jun 2008 10:47:21 +0000

Nosey Parker 2 expands on Nosey Parker 1. Students sort the “I notice…” and “I wonder…” questions into Relationship, Comparison, Summary or other types of questions. Once sorted into categories they work in groups to refine their questions and decide on what data they need to answer the questions.

Resources:

Teacher instructions
Ngā kōrero mā te Pouako
Copy of statements generated from class in Nosey Parker 1

Achievement Objectives

Level 3
- S3-1 Conduct investigations using the statistical enquiry cycle
  - A gathering, sorting, and displaying multivariate category and whole-number data and simple time-series data to answer questions
Level 4
- S4-1 Plan and conduct investigations using the statistical enquiry cycle
  - A determining appropriate variables and data collection methods
Level 5
- S5-1 Plan and conduct surveys and experiments using the statistical enquiry cycle
  - A determining appropriate variables and measures
Level 6
- S6-1 Plan and conduct investigations using the statistical enquiry cycle
  - A justifying the variables and measures used

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