2. Maureen Curran and Mary Lou Aalbers Hazelwood School District Click here for teacher tips Click here to begin AddSubtractDivide

3. Teacher Tips You will need to click the mouse to show the answers for activities. This will allow you to control the timing of answers shown. We suggest that students keep a journal. It is critical for students to use writing skills to explain their answers. Please take time to discuss possible solutions to problems.

4. Number Sense The following lesson is addressing these standards: Use problem-solving approaches to explore and construct meaning from mathematical content. (MO 1.6, 3.4, 3.5, 3.7) Extend understanding and ability to apply whole number operations to all rational numbers. (MO 3.2, 3.3, 4.1) Click here to return to beginning

5. Mary, Amy and Sue plan to go to a concert on Friday night.

6. Amy’s father will drive the girls to the concert so they plan to meet at Amy’s house.

7. It usually takes Sue 30 minutes to walk to Amy’s house, but she decides to ride her bicycle which takes 1/2 the time.

8. From Amy’s house, it will take 40 minutes to drive to the game.

9. If the concert starts at 8:30 and the girls want to be in their seats 30 minutes before the concert begins, what time will Sue have to leave her house?

10. Concert 8:30 In their seats30 minutes before concert Car Ride40 minutes Bike Ride is 1/2 the 30 minute walk

11. D. 6:50 A. 7:30 B. 7:20 C. 7:05

12. 7:05

13. In your journal explain how you arrived at your answer. Click here to return to beginning