Comparing+and+Scaling+10-11


 * Comparing and Scaling

Big Idea Many important practical and mathematical applications involve comparing quantities of one kind or another; it is important to know which method to use and how we should use them.

__ Comparing and Scaling Vocabulary __

Population Density Rate Ratio Scale, Scaling Unit Rate Decimal Difference Equation Equivalent ratio Fraction Graph, Coordinate graph Percent Scale Factor Proportion [|Comparing Scaling Vocab definitions Teacher.pdf] [|Comparing Scaling Vocab definitions Student.pdf]

** Investigation 1 Essential Question - **What methods are there for comparing quantities? 1.1 Writing Ads - 1.2 Targeting an Audience -1.3 Getting the Message Across -Mathematical Reflections, p. 1 -

2.1 Comparing Leisure Activities - 2.2 Comparing Your Class to the Nation - Mathematical Reflections, p. 25 -
 * Investigation 2 Essential Question: **  How can we use percentages to compare different sets of data?

** Investigation 3 Essential Question: **  How can I use a proportion to increase or decrease the size of an image or quantity? 3.1 Mixing Juice -3.2 Helping the Cook -3.3 Sharing Pizza - Mathematical Reflections, p. 36 -

** Investigation 4 Essential Question: ** How can I use a unit rate to make a prediction? 4.1 Comparing Fuel Economy - Corben4.2 Using Unit Rate - Osama4.3 Solving Problems with Rates - Zoheb4.4 Buying Beads - Mathematical Reflections, p. 51 - George

** Investigation 5 Essential Question: ** How are rates, ratios and proportions related and how are they different? 5.1 Estimating the Size of a Crowd - Aksel 5.2 Estimating a Deer Population - Jawad 5.3 Finding Population Densities - Amal 5.4 Comparing the Dakotas - Anahita 5.5 Predicting Traffic Jams - CJ Mathematical Reflections, p. 64 - Ariyana

6.2 Using Rules of Thumb - Sky 6.3 Selecting Delegates - Nikhil Mathematical Reflections, p. 81 - Ja Young
 * Investigation 6 Essential Question:**Which comparing strategies work best in which situations? 6.1 Scaling Up or Down - Katrina

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