Monday, February 2, 2009

Hard to figure

Chloe's Algebra homework today:

Overnight, a huge blizzard dumped 10 inches of snow on the ground. When the sun comes out, it melts the snow at a rate of about 1 inch per hour. Write an equation for the problem situation.

The equation is 10-1h=s. Then there's a table with h and s values for Chloe to calculate. One of the provided h values is -2. Her teacher instructed the class to fill in the s value of 12 in that row of the table.

The next question asks if an h value of -2 makes sense in the problem situation.

Her teacher instructed the class to answer "Yes."

Chloe couldn't understand why she would say that. We are equally stumped. Unless, of course, the reason is that it's easier for the teacher that way.

3 comments:

CiaoBella! said...

Only if it's 2 hours later. What time did this equation start?!!

Penta Mom said...

I guess they don't have a dude nailed to the plus sign in the classroom? lol

dharmamama said...

It only makes sense if Superman flew around the world, making time go backwards. But even then, you start with only ten inches of snow. Going back two hours before the snow doesn't make it twelve inches. Unless the equation was written by an insecure, unfortunately-endowed man? They're always looking for ways to make it twelve inches.