Study Guide:    Using proportions in simple calculations

book cover Produced by Graham Currell, University of the West of England, Bristol in association with Chistine Owens, Univesity of Birmingham, and:
Royal Society of Chemistry, 'Discover Maths for Chemists' website
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Essential Mathematics and Statistics for Science, 2nd Edition
   Graham Currell and Antony Dowman, Wiley-Blackwell, 2009

This study unit aims to develop the skills for handling simple calculations in science involving proportions, ratios, fractions and percentages. This is achieved by a series of video tips and associated QVA tutorials - questions with video worked answers.

This new Study Guide is in the process of development - any comments, corrections or suggestions welcome -

NB: The video tips and QVAs appear in 'pop-up' windows. If your browser blocks 'pop-ups', you can use CTRL+Enter or Right click with the mouse.

Simple proportions 
QVA tutorial
Video tip

Inverse and power proportions
QVA tutorial
Video tip

Proportions and ratios
QVA tutorial
Video tip

Proportionality and calibration
QVA tutorial
Video tip - Constants of proportionality
Video tip - Interpolation in calibration

Fractions and percentages
QVA tutorial
Video tip- Fractions
Video tip - Percentages

Hypothesis testing for proportions
Using Minitab for One and Two Proportions