Solve multi-step real-world problems with rational numbers.
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Lessons 10 and 11 engage students in solving multi-step real-world problems, drawing on skills from Units 1–3. There is only one Anchor Problem in this lesson that can be introduced as a whole class and then completed by the students in pairs or small groups. For these challenging problems, students would benefit from a mix of peer collaboration time, independent work time, and teacher-led discussion.
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Below is a table showing the number of hits and the number of times at bat for two Major League Baseball players during two different seasons:
Season | Derek Jeter | David Justice |
1995 | 12 hits in 48 at bats | 104 hits in 411 at bats |
1996 | 183 hits in 582 at bats | 45 hits in 140 at bats |
A player's batting average is the fraction of times at bat when the player gets a hit.
Who has the better batting average? Justify your answer.
Who is the Better Batter?, accessed on Oct. 9, 2017, 11:34 a.m., is licensed by Illustrative Mathematics under either the CC BY 4.0 or CC BY-NC-SA 4.0. For further information, contact Illustrative Mathematics.
Modified by The Match Foundation, Inc.?
The following resources include problems and activities aligned to the objective of the lesson that can be used to create your own problem set.
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The bar-tailed godwit is a bird that makes the longest known nonstop flight during migration. An article described the migration of a bar-tailed godwit from Alaska to New Zealand saying, “She had flown for eight days – nonstop – covering approximately 7,250 miles at an average speed of nearly 30 miles per hour.”
Is the information reported by the article accurate? Explain your answer.
Progressions for the Common Core State Standards in Mathematics (6-8 Expressions and Equations), by the Common Core Standards Writing Team is made available by Institute for Mathematics and Education, University of Arizona. © 2007 The Arizona Board of Regents. All contents copyrighted. All rights reserved. Accessed March 21, 2018, 8:05 p.m.. For updates and more information about the Progressions, see http://ime.math.arizona.edu/progressions.
Modified by The Match Foundation, Inc.?