eeps comments:
This is a nice solution, but points up a
problem we all have trying to communicate about math in writing. What
does the table mean? Here's what I think:
The first line means that when Dwight is 9,
Chelsea will be 1 (person year), therefore 6 dog years. (The C stands
for Chelsea). I think the students are tring to see when the clue
"Chelsea is twice as many dog years right now as Dwight is in
personyears" becomes true. They must be older than this, because
Chelsea is still too young.
The second is the next guess, and it's a
good one! Three years later, Dwight will be twelve and Chelsea will
be 4 (in person years) which is 24 dog years. And that's twice
Dwight's age. Whew!
The third line solves for Sadie: her
personyears must be 8 (1/3 of 24, last clue), so she's 48 dog years
old.
The question is, how could we make that
table so it would be clearer without having to write all the
sentences I did?
