apt4Maths: Set of 14 PowerPoint Presentations (Relating to Statistics) on Collecting and Presenting Data for GCSE (and Key Stage 3) Mathematics
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This set of 14 PowerPoint Presentations, written by a highly experienced teacher (of 25+ years), senior examiner and reviser for Maths and Stats examinations, are designed for use by:
- any teacher – not necessarily a maths specialist – as part of their own delivery of lessons.
- students working independently.
They can be used by:
- cover teachers.
- students who are unable to attend their lesson in person.
Each PowerPoint Presentation includes:
- Lesson objectives
- Step-by-step explanations of the subject matter
- Examples to aid understanding
- Questions to check understanding
- Answers to questions, with explanations
- Suggestions regarding which topic(s) should be moved on to next.
This set of 14 PowerPoint Presentations (299 slides, excluding Title Pages) covers the following ‘collecting and presenting data’ based topics:
- 01 Types of Data (24 slides): Explains the different types of data and how data can be classified according to who collected it.
- 02 Collecting Data (31 slides): Reviews the data handling cycle and explains the main methods of collecting data and how to avoid bias, as well as how to record and clean data.
- 03 Questionnaires and Surveys (30 slides): Explains the dos and don’ts when designing questionnaires or surveys, reviews grouping data, explains random response techniques and what to do with unexpected responses.
- 04 Sampling and Bias (25 slides): Defines key statistical terms, outlines how to avoid bias, and explains the main methods of sampling.
- 05 Block Diagrams and Dot Blocks (12 slides): Explains how to draw, read and interpret block diagrams and dot plots.
- 06 Pictograms (16 slides): Explains how to draw, read and interpret pictograms; highlights how pictograms are suitable charts for representing qualitative data.
- 07 Bar Charts, Bar Line Graphs and Frequency Diagrams – Polygons (26 slides): Explains how to produce, read and interpret a variety of bar charts and vertical line graphs, as well as frequency diagrams and polygons.
- 08 Line Graphs (9 slides): Explains how to plot / draw, read off and interpret simple line graphs.
- 09 Stepped Tables and Two-way Tables (18 slides): Explains how to use stepped tables and how to complete, read and interpret two-way tables.
- 10 Pie Charts (18 slides): Explains how to draw and interpret pie charts.
- 11 Scatter Diagrams (40 slides): Explains how to plot a scatter diagram, explains correlation – types and strength, how to draw and use lines of best fit, and how to find and interpret the equation of the linear regression line.
- 12 Stem and Leaf Diagrams (17 slides): Explains how to produce stem and leaf diagrams, including back-to-back stem and leaf diagrams.
- 13 Histograms (14 slides): Explains how to produce and interpret histograms.
- 14 Misleading Graphs and other Data Representations (19 slides): Explains how diagrams, charts and graphs might be misleading.
- Work on frequency tables, cumulative frequency tables and graphs, box (and whisker) plots and time series is included in APT’s set of PowerPoints on ‘Analysing Data’.
- Work on conversion graphs and distance-time graphs is included in APT’s set of PowerPoints on ‘Graphs’.
- There are also additional PowerPoints available that cover the additional GCSE Statistics parts of this module of statistical work – covering sampling in more depth, comparative pie charts, population pyramids and choropleths.