Directions: The traditional method for calculating a dog's age in dog years is to multiply its age in human years by 7. The chart below describes a different method some veterinarians use to estimate a dog's age based on its size. Size Small Medium Large Giant Weight 20 pounds or less 21‒50 pounds 51‒90 pounds more than 90 pounds Age at 2 in Human Years 23 dog years 24 dog years 22 dog years 20 dog years Age Increase Each Year After 2 in Human Years 4 dog years 5 dog years 6 dog years 7 dog years

Question

1. Choose a dog breed in each size category. You can use the dog breed charts on the following page or do research to choose a different breed. 2. Complete a table to show the dog year equivalent for each breed from 2–5 human years. 3. Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression to model its age in dog years. [Hint: Use (x 2) in each expression.] 4. Choose what you consider to be a really old, but realistic, age for people. 5. For each expression you write, plug in the value you chose in step 4—an old age for a human—for x. Set each expression equal to A. 6. Solve each equation, and explain what the solution means. Add the old-age values to your table. 7. Use your solutions to develop a convincing argument for why the method described in the chart is better than the traditional method. 8. You may wish to do research to find the average lifespan for each dog breed and use those facts in your argument. Use your table, equations, solutions, and arguments to create your debate presentation. Your presentation can be written, but you could also use slide presentation software or create a video of yourself giving the presentation. Your completed presentation will be submitted as your portfolio assessment.
© 2015 Connections Education LLC. All rights reserved. 2

Small Dogs (20 lbs or less)
Medium Dogs (21‒50 lbs)
Large Dogs (51‒90 lbs)
Giant Dogs (more than 90 lbs)
 border terrier  Cavalier King Charles spaniel  Chihuahua  dachshund  Lhasa apso  Maltese  miniature schnauzer  Pekingese  pug  toy and miniature poodle  Yorkshire terrier
 cocker spaniel  wheaten terrier  border collie  English springer spaniel  corgi  American pit bull terrier  standard schnauzer  Australian cattle dog  Welsh corgi  German pinscher  Portuguese water dog
 boxer  bulldog  collie  German shepherd  German wirehaired pointer  giant schnauzer  golden retriever  Irish setter  Labrador retriever  standard poodle
 rottweiler  Irish wolfhound  Bernese mountain dog  Saint Bernard  Great Pyrenees  Great Dane  bullmastiff  bloodhound  Newfoundland  greater Swiss mountain dog

Answer 1

Tut-Tut-Tut! Did you read the instructions? Did you not notice the "© 2015 Connections Education LLC. All rights reserved." If you want help, you need to specifically ask for it. I would love to help you, though(I'm on this topic, too!) Just ask me what you need specifically.