Welcome to our new unit focusing on ratios, rates, percents and proportions.
Investigation 1: Ways of Comparing: Ratios and Proportions
Investigation 1 focuses on different strategies for comparing quantities—using ratios, fractions, percents. Students learn what different types of comparative statements say about data given. They are asked to write comparative statements using ratios and differences that describe data.
We have completed Investigation 1.1 -1.2 in the new Comparing and Scaling Book. We focused on the ability to make comparisons of quantitative data. We focused on making comparisons through: 1. ratios 2. differences 3. percents 4. simplified ratios Further we stressed the importance of making comparisons between part-to-part or part-to-whole.