SuitabookPercents and Ratios
Lucille Caron, Philip M. St. Jacques
- Reading
- Work through one concept at a time, asking the reader to explain each example before attempting a similar calculation; connect later topics to earlier ratio, fraction and decimal relationships.
- Themes
- Building connected mathematical understanding: The book presents these ideas as related concepts, including equivalent ratios and links between ratios, fractions, decimals and percentages. It appears designed to explain how different numerical representations connect, rather than merely list procedures.
- Mathematics in everyday and financial contexts: Later sections apply percentages and ratios to pricing, sale prices, commission, income, simple interest and compound interest. The book presents this mainly as information or explanation.
- Worth knowing
- Pay particular attention when the book moves between ratios, fractions, decimals and percentages, then revisit applications such as sale prices, commission and interest to check whether the underlying relationships are understood.