1 / 9

Problem Solving

Problem Solving. [Graphs]. By Irma Crespo 2010. Circle Graph. A group of students were asked to name their favorite subject in school. The circle graph shows the result of the survey. . How many percent like English? Science? . Which is the most favorite subject?.

evita
Download Presentation

Problem Solving

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Problem Solving [Graphs] By Irma Crespo 2010

  2. Circle Graph • A group of students were asked to name their favorite subject in school. The circle graph shows the result of the survey. • How many percent like English? Science? • Which is the most favorite subject? • Which is the least favorite subject? • If 45 students chose math as their favorite subject, how many students were surveyed?

  3. Bar Graph 60 45 30 40 30 15 20 0 15 Purple and Orange Green and Gray Navy and Gold Red and White • The results show a favorite color survey. • How many students were surveyed? • What percent of the students chose purple and orange?

  4. Line Graph (1) 6 5 4 Profit ($ million) 3 2 1 2002 2004 2006 2000 Year • What was the profit in 2000? • What was the profit in 2002? • By how much did the profit increase each year? • If the trend continues, what is good prediction of the profits in 2009?

  5. Line Graph (2) • The Lakeside Marina charges a $35 rental fee for a boat, in addition to charging $15 an hour for usage. The graph shows the total cost y and the hour x. • What is the slope? What does it mean? • What is the y-intercept? What does it mean? • What is the total cost for 1 hour rental? • What is total cost for 3 hours of rental?

  6. Scatter Plot 650 y 500 550 Visitors 500 450 400 x 0 1 2 3 4 5 6 Week • The graph shows the number of visitors at an art exhibit. • What week has the least number of visits? • What week has the most number of visits? • How many more people visited the art exhibit during the week with the most visitors than the week with the least visitors?

  7. Tips to Problem Solving • Look for a pattern. • Use a graph. • Use logical reasoning By Irma Crespo 2010

  8. Practice Worksheet Complete the practice worksheet. Work with a partner or on your own. Submit completed worksheet for grading. Solutions are discussed the next day.

  9. Main Resources • Day, et.al. (2009). Math Connects: Concepts, Skills, and Problem Solving. Section 9.2. Columbus:McGraw-Hill. • PowerPoint created by Irma Crespo. University of Michigan-Dearborn, School of Education. Winter 2010.

More Related