PPT-Proportions and Percentages

By Louise Penny and Hilary Newton Scenario It is your 21 st birthday and you have decided to have a costume party You will provide finger foods and it is BYO drinks Your guests will leave with a . SPI 6.1.1 Predictions & Conjectures. SPI 6.2.6 Rates & Percents. What is a proportion?. A . proportion. is 2 equivalent ratios.. . Example. : . 6 . = . 3. 20 10. What is a ratio?. A . An introduction. Ratios express . relationships. 1 dozen eggs . $2.50. 2 cups of flour. 1 cake. This expresses the relationship that 1 dozen eggs cost $2.50. . This expresses the relationship that 2 cups of flour are needed to make 1 cake. In this section we will be able to give real life examples of Fractions and Proportions. We will also learn how to solve and evaluate Fractions and Proportions in word problems.. Lesson plan goals. We are constantly using fractions everyday. Most of the time not really even noticing that we are using fractions. Have you ever checked the clock or a watch for the time? Guess what the time is a fraction of a day so any time you use a watch, clock. Remember to Silence Your Cell . Phone and Put It In Your Bag!. Proportional Variance. Two quantities . vary proportionally. iff as their corresponding values increase or decrease, the ratios of the two quantities are always equivalent.. Pie Charts. CSCI N207 Data Analysis Using Spreadsheet. Department of Computer and Information Science, IUPUI. Lingma Acheson. linglu@iupui.edu. Pie Charts. Univariate. analysis (one data variable, good for comparing percentages among categories). Using Percentages . Objectives. Identify and calculate percentage increase and percentage decrease . Identify common mistakes with percentages. Service Tipping. In most countries, tipping your server is expected. The U.S. has the highest expectations for tipping of any other country at 15-20%. . International Cooperation Days 2015. Inés. . Bustillo. Director. ECLAC Washington Office. May 13. th. , 2015. The ECLAC proposal. Equality is the goal, structural change is the path; and the art of politics and policymaking is the instrument. Understanding and calculating percentages is an essential skill in business – market share, growth rates, interest rates, and many ratios are expressed as a percentage. This tutorial will introduce the basics of percentages, but many of the other MBTN modules will provide additional practice and contexts.. Aims. Look at how fractions, decimals and percentages are taught in school.. Identify why children find fractions, decimals and percentages difficult.. Identify ways in which you can help your child at home.. Review: . Midsegment. Theorem. Review: . Midsegment. Theorem. See the two triangles:. What if we compared corresponding sides with proportions?. 40x = 2560. x = 64.  . This is today’s lesson!. two-proportion inference tests. Chapter 22. Proportions observed in independent random samples . are. independent. Thus, we can add their variances. So…. The standard deviation of the difference between two sample proportions is . Textbook Pages 430-435. Objective. I can solve scale drawing problems using proportions.. Vocabulary. Scale Drawing: . is the same shape but not the same size. A map is a scale drawing. The units are very important.. Proportion – Learning Outcomes Express quantities as proportions of each other using fractions, decimals, ratios, and percentages. Divide quantities into a given proportion. Express errors as a proportion. 2015, 2016, and 2017. Source: American Dental Education Association, Survey of Dental School Seniors. , . 2015, 2016, and 2017 . Graduating . Classes. Note. : Percentages may not total 100% due to rounding..