apt4Maths: AVERAGES - MEDIAN PowerPoint for GCSE Maths (Lesson 2 of 7 on Analysing Data)

PowerPoint Presentation on Averages – Median (19 slides): Reviews and interprets different types of data representations before explaining what a median average is, how to find the median for discrete data, and how to find the median class for grouped or continuous data. It also explains how to calculate an estimate of the median for continuous data. It has been written by a highly experienced teacher (of 25+ years), senior examiner and reviser for Maths and Stats examinations. It 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 is 1 of a set of 7 PowerPoints on ‘Analysing Data’ that APT Initiatives has published for GCSE (and Key Stage 3) Mathematics. The complete set of 7 PowerPoints (129 slides, excluding Title Pages) covers the following statistical-based topics relating to ‘Analysing Data’:

01 Averages – Mode (19 slides).
02 Averages – Median (19 slides).
03 Averages – Mean (19 slides).
04 Measures of Dispersion – Range (16 slides).
05 Measures of Dispersion – Interquartile Range (20 slides).
06 Cumulative Frequency (25 slides).
07 Box (and Whisker) Plots (11 slides).

These PowerPoint Presentations relate to the ‘Statistics’ sections of the Maths specifications. Other sets relating to Statistics concern:

Collecting and Presenting Data
Probability

Note: Finding averages from stem and leaf diagrams and histograms is included in this pack of work. Drawing up these diagrams is in included within APT’s pack on ‘Collecting and Presenting Data’.

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