
For Teachers » Teacher's Edition » The Golf of Mexico » StepbyStep Directions
StepbyStep Directions
Mission 1: Activity B  Choose the Building Material
Approximate time needed to complete: 515 minutes
ACTIVITY SUMMARY
In the second Activity, the Agent is asked to calculate the expense of covering Dr. Wick's golf course with three different options: Klimas Kelp, Agent W, and bundles of Boards and Rope. After computing the cost of each option, the Agent must rank the options from most expensive to least expensive.
CORRECT ANSWERS
Klimas Kelp: 0 + ($100*121,600) + 0 + $7,000,000 = $19,160,000
Agent W: $10,000,000 + ($74*121,600) + 0 + ($1.25*121,600) = $19,150,400
Boards & Rope:
Additional Cost  $5500/100 sq. mi. = X/1 sq. mi.
X = $55 per sq. mi.
Maintenance  $550/10 sq. mi. = X/1 sq. mi.
X = $55 per sq. mi.
0 + ($47.75*121,600) + ($55*121,600) + ($55*121,600) = $19,182,400
Order of answers (most expensive on left, least expensive on right): Boards & Rope, Klimas Kelp, Agent W
Special Problem Notes:
• Students can enter answers with or without commas.
• Answer boxes turn green and lock when the correct answer is entered.
• Once all three answers are correct, click and drag columns to put them in the correct order.

To use tools, simply click them from the bar on the left side of the screen. To close tools, use the "Ok" button or the close "X" in the upper left corner of the tool.

AVAILABLE INFORMATION/TOOLS
ToDo List
The 2 steps on the ToDo list are:
Step 1: Find the cost for each of the three options
Step 2: Slide the most expensive option to the left and the least expensive option to the right
HQ Email
"This is our chance to begin ruining Dr. Wick's scheme. Instead of recommending the least expensive way to cover the Gulf, you should suggest the most expensive material. Dr. Wick will never check the math, and we'll tie up Platypus so he can't check it either. Deep Thought asked to remind you that you calculated the area of Dr. Wick's course to be 121,600 square miles. Good luck!"
Notepad
Students can type letters and numbers into their notepad. Their notes travel with them throughout the whole Mission.
Calculator
Students can use the calculator by typing number on the keyboard or clicking with their mouse.
AVAILABLE FIELD AGENTS
Dr. Winifred Patterson
Winnie suggests writing an equation for each problem with X as the area of the golf course; she gives an example using Kelp. Vocabulary terms equation and square mile are mentioned.
Molly Wick
Molly displays a graph showing the cost of all three options plotted against area. She then notes where 121,600 falls on the graph. The vocabulary terms area, xaxis, and yaxis are mentioned in her answer.
Kotori Hoshi
Kotori displays three graphs showing cost plotted against area, then combines them into one graph. She notes where 121,600 square miles (the area of the golf course) falls on the combined graph.
Coach
Coach describes and shows the example of the price of putting letters on a baseball jersey to explain how to set up an equation with a variable. The vocabulary terms variable and constant are mentioned.
Mathbot
Mathbot suggest a fourstep problem solving method using four character voices. Examples are given for Understand the Problem, Devise a Plan, Carry out the Plan, and Look Back. The vocabulary terms variable and square mile are used.
Deep Thought
After 15 seconds: Deep Thought hints that the user should first solve each option, then compare them.
After 15 more seconds: Deep Thought points out that only items that say "per square mile" should be multiplied by the course area.
After 45 more seconds:
• Deep Thought creates word sentences for the operations of each option, emphasizing differences between each choice.
• The user can choose to close the help or receive further help from Deep Thought. If they ask for more help, Deep Thought creates number sentences from the word sentences just created for all three options.
AVAILABLE WORKSHEETS
Training Mission: Producing the Moose
Training Mission: Producing the Moose Answer Key
You can use a Training Mission worksheet to introduce or review math topics explored in an Activity.
Field Log: Choose the Building Material
Field Log: Choose the Building Material Answer Key
Your students can use a Field Log worksheet to record their solutions to the activity's math challenge.
MissionSimulation Assignment: Operation Unicalculation
MissionSimulation Assignment: Operation UniCalculation Answer Key
You can use a MissionSimulation Assignment worksheet to reinforce or extend the mathematical concepts explored in an activity.
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