A boy can read 5 pages in 15 minutes. A girl can read 15 pages in 1 hour. Explain how you can use a table or graph to find how much longer it will take the girl to read a 300 page book then the boy?
If you use multiplication and division you can figure out that a boy can read it in 15 hours, where as the girl can read it in 20 hours. Making it into a graph you would then see that the boys line goes up steeper and for not as long and the girls
