Miguel and Heather are building a model of human lungs for the science fair. Together they have worked 3/4 hour. Miguel has worked twice as long as Heather has. How long has each student worked?

Miguel

Heather

> 3/4

Miguel has worked 2/4 or 1/2 hourHeather has worked 1/4

Together they worked 3/4

Josh worked 3/4 hour on a science fair project. That’s three times as long as Chester worked. How many hours did they work in all?

Josh

Chester

Together they worked 1 hour

Sarah and Flora won the science fair. Sarah worked 2 /3 hours on their project, and Flora worked 1/2 hour more than Sarah. How much time did they work altogether?

Sarah

Flora

2 1/3 + 2 1/3 + 1/2= 5 1/6 hour

Ask Yourself What facts do I know?

Did I draw a diagram?

Did I make the right number of strips?

Did I label the strips?

Did I find the number of strips that each

strip represents?

Did I solve the problem?

Class Practice

• Each group is assigned 1 question from Practice

10.7

• Illustrate the question on a whiteboard app

• Be prepared to teach your question to the class