Mathematical+Reflections,+p.+51+-+0910

Mathematical Reflection 4- Ali **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.

// //What methods are there for comparing things?// //
 * Essential Question**

· 850$ for 3 weeks · 2 pizzas for 5 people · 20 pencils for 6 people
 * 1) **Give three examples of rates.**


 * 1) **How can rates or unit rates help you make comparisons?**

Unit rates are useful for comparing things like the cost of one bead, and how many beads for one dollar. Everything is proportioned to one.


 * 1) **How do you convert a rate to a unit rate? Illustrate your answer with one of the examples you gave in part one.**

You can divide a rate by the other rate to make it into a unit rate. Ex. $850 divided by 3 = $283.33. This means there is $283.33 dollars for each week.


 * 1) **How can information about unit rates be used to make tables and graphs showing how two variables are related? Use your example to illustrate your answer.**

To make tables, and graphs, you can multiply the week or $ by your number, and you multiply the rate also. For example- 2 weeks= 566.66 (283.33 x 2)


 * 1) **How can a unit rate be used to write an equation relating two variables? Use your example to illustrate your answer.**

It can be used for an equation as you can show it with 1. 1w= 283.33