7th Grade Standard - 7.RP.A.3
Ratios & Proportional Relationships
￼Use proportional relationships to solve multi-step ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.
LESSON: SPORT STATS
What is the win percentage for each team?
The ability to use proportional relationships to solve multi-step ratio and percent problems is a skill that will benefit students in real world situations. In Sport Stats, Dave and Shannon are broadcasting live for Game 1 of the American East Division Unicycle Hockey Playoffs on the TV show, Ultimate Obscure Sports. During the broadcast, they planned to provide the viewers the win percentages for each of the four teams, but they don’t have the percentages! They only have the win-loss records for each team. The data provided is Shannon’s notes with the win-loss records for the four teams.
- Play Sports Stats Immersion video, whole-class.
- Restate the question: Will Attorney Matherstone make it home before the candle burns out?
- Facilitate classroom discussion, ask students: "What do we need to know?"
- Print the Data Artifact, cut into halves, and distribute to students.
- Allow students work time. Then ask students "Does your answer make sense?"
- Consider using a sharing protocol to lead to mathematical insights and/or highlight misconceptions.
- Allow students to revise their work.
- Play Sports Stats Resolution video, whole-class.
- Prepare and give brief lecture (Teacher Instruction).
Answer: Gecko Fireballs 75% - Thunder Nerds 100% - Awesome Possums 75% - Samurai Scorpions 46%
1. Simulation Trainer
- Have students complete Simulation Trainer.
1. Print and distribute the Practice Printable to your students.
2. Have students complete the Practice Printable. Consider using creative protocols.
1. Have students complete the Practice Printable.
2. Have students complete the Student Reflection Assignment.
1. Have your students go to midschoolmath.com/clicker.
2. Click on Launch Clicker Quiz and note Clicker Quiz code.
3. Have students enter quiz code on their screens.
4. Launch Clicker Quiz.
5. Review Clicker Quiz results and prompt students to make connections to the Math Simulator.