1. Will someone break the record?
2. Write down a guess.
3. What information would be useful to figure this out?
4. Write down some questions you have in your head right now.
5. Write an inequality for each man’s performance.
6. Robert later broke his own record with 805 punches. How many punches per second is that?
7. How would the graph of his original record change based on this information?
Use ratio and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
represent mathematical and real-world problems involving ratios and rates using scale factors, tables, graphs, and proportions
Credit: Guinness World Records