A clear understanding of ratios is one of the keys to unraveling Arithmetic the other being the ability to translate the problems from mostly english to mostly maths. You will see ratios in action in topics like Percentages , Averages and weighted averages , Time speed and distance etc. In this super post the idea is to start from the very beginning and completely cover all aspects of the meaning of the term Ratio .
Understanding Ratios and Variations (direct and inverse)
solid humble beginnings lead to magnificent journeys and thus we must begin from the very basic meaning of the term and various interpretation possible. Click on the image to launch the slide show. Each slide focuses on one simple idea at a time . Going through this is extremely important for later lessons , repeat till we are speaking in the same language .
Covered in the slide shows
1. Meaning of ratios
2. Interpretations
3. Ratios by other names
4. Age , Money in bag , Partenerships and other basic applications using ratios and language interpretation
5. Income , Expenditure Savings Ratio analysis
6. Understanding Variations
7. Variations applications using multiplying factors
8. Proportionality and applications using standard method and alternatively with multiplying factors
