Review Internet procedures. Using their calculator, they convert each fraction to a decimal. Students convert decimals to percents. Students sketch a pie graph for each year using the percents. They compare these pie charts with the ones in Step 10.
Students calculate and graph data about current music.
1.1 Analyze problems by identifying relationships, discriminating relevant from irrelevant information, identifying missing information, sequencing and prioritizing information, and observing patterns. 1.2 Formulate and justify mathematical conjectures based upon a general description of the mathematical question or problem posed. 2.2 Apply strategies and results from simpler problems to more complex problems. 2.3 Estimate unknown quantities graphically and solve for them by using logical reasoning and arithmetic and algebraic techniques. 2.4 Make and test conjectures by using both inductive and deductive reasoning.