Introduction
												 
													In the 
												M.A.R.S. mission your classroom 
												will take part in a simulation 
												to find a suitable site to build 
												the first Martian base. In this 
												exploratory mission to survey 
												Mars, students will select sites 
												to visit, calculate the fuel 
												consumption of their planes to 
												reach those sites, and calculate 
												the areas and mineral 
												compositions of sites they 
												choose to visit. This activity 
												provides practice with the math 
												skills used in the M.A.R.S. 
												mission.
																							
													 Duration
													
												 30-45 
												minutes 
											
													
													Vocabulary
												
								 
									coordinates: 
												an ordered pair of numbers. 
									formula: a 
												rule showing relationships 
												between quantities. 
									horizontal 
												axis: the horizontal line of the 
												two lines on which a graph is 
												built. 
									percent: a 
												ratio comparing a part to a 
												whole using the number 100. The 
												percentage is the number of 
												hundredths that the part is 
												equal to. 
									quadrilateral: a polygon with 
												four sides. 
									slope: the 
												measure of the steepness of the 
												line. 
									vertical 
												axis: the vertical line of the 
												two lines on which a graph is 
												built. 
								 
											
													NCTM 
													Standards for Mathematics
													 
													Grades 6-8; 
												Number and Operations Standard Understand 
												numbers, ways of representing 
												numbers, relationships among 
												numbers, and number systems: 
												
													- 
													
Work flexibly with fractions, 
												decimals, and percentages to 
												solve problems.  
													- 
													
Understand and use ratios and 
												proportions to represent 
												quantitative relationships. 
													 
								 
												
													
													Materials
												
								 
											
													
													Procedure
												 
													- 
													
Decide how you want the students 
												to work on the activity. You may 
												choose to have the students work 
												individually or in groups. 
												Another option would be to 
												assign this activity for 
												homework and review the answers 
												together in class.  
													- 
													
Discuss all vocabulary in the 
												lesson, including ratio, rate, 
												proportion, and 
												cross-multiplication.  
													- 
													
Preview the activity with the 
												students. Allow time for 
												questions and discussion. 
													 
													- 
													
Use the M.A.R.S. Math Tasks 
												PowerPoint to guide students 
												through this math activity. We 
												recommend that you work through 
												the activity as a class using 
												the M.A.R.S. Math Tasks 
												presentation projected from a 
												computer.     
													- 
													
Make sure your students 
												understand the relevance of this 
												activity to their mission work. 
												During the M.A.R.S. live 
												simulation students will use the 
												formulas in this lesson to 
												calculate the fuel consumption 
												of their surveyor planes, the 
												area of each site their planes 
												visit, and the amount of 
												minerals contained at each site. 
												They will also need to compare 
												the amount of fuel their plane 
												will burn to visit each site to 
												the amount of hematite at the 
												site, using a decision graph. 
													 
								 
												
													Special 
													Comments 
													On mission 
												day students will use online 
												tools to complete these types of 
												problems. Answers for 
												this activity are provided in 
												the M.A.R.S. Math Tasks answer 
												key:
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