Create three different "hooks" that grab the reader's attention in the opening paragraph of an essay that is focused on explaining air pollution effects to a generic audience.
The answer will depend on each student.
If Jack has 2 chocolates and Jill has 3 chocolates, how many chocolates do Jack and Jill have?
Jack + Jill = 2 + 3 = 5 chocolates.
If a movie theater charges a $2 fee plus $0.60 per minute of movie showtime, how much will a 90-minute movie cost?
Since each minute costs $0.60, we can represent the cost as "x" minutes times $0.60. This becomes 0.60*x. Also, we have a $2 fee, so the algebraic expression is 0.60*x + 2. We substitute 90 minutes in for "x" to yield 0.60*(90) + 2 = $56.