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=Team Name:= The JAAR! =Team Symbol:=

=I. Team Members Names (First Only)= Jennifer, Anna, Alyssa, and Rabiya

=II. Instructions for Challenges=

A. For each challenge you must write a short description of the challenge using complete sentences. Please write in 3rd person, scientific writing. B. This is where you should include your programming code by including screen screen shots. You should place all multimedia on [|photobucket.com] and then incorporate it into the site using the embed code. C. For each challenge you must provide some form of multimedia exhibit. This would be images, a short video, an interview, etc. You should place all multimedia on [|photobucket.com] and then incorporate it into the site using the embed code. D. For each challenge you should provide a written explanation of the difficulties encountered with the challenge. = = = = =III. Challenges=

A. Description:
For this challenge, we must make the robot move 25cm forward, point turn to the left 180 degrees, and then back up 10cm. The point turn is when the robot has to turn in one direction while staying in the same spot.

B. Programming Code:
Picture 1.

The programming code was especially difficult to make. The group finally came up with a successful one, which is the picture above. The first step in the challenge was to go 25cm forward, so the group programmed the first step to go 3 seconds going forward, on 60 power, and on ports A and C. The second step in the challenge was to point turn to the left 180 degrees, so the group programmed the second step to go 300 degrees on 75 power and on port A. The third step in the challenge was to move back 10 cm, so the group programmed the third step to move backwards for 3 seconds, on 60 power, and on ports A and C.

C. Multimedia:
== Picture 2. Alyssa with the robot!

D. Difficulties With the Challenge:
The group had a hard time programming the robot. They had to program over and over until it was right. It is difficult to make the robot move in the certain direction with the right speed. So the group had to program it many times. Also, the group had a difficult time when it came to making the robot run. The group found it difficult to find the right cords to put in the right ports. After many tries, the group finally got it right and the robot ran successfully.

media type="custom" key="661903" Challenge One Video. This video is showing the robot has ran successfully with the Point Turn

2. Square
A. In this challenge, the robot must follow the square drawn at the front of the room.

Picture 3. Picture of Second Challenge^

Difficulties and Overview of Challenge:
Challenge two was, in the group's opinion, one of the easiest challenges. The group automatically saw that challenge two was quite short, and consisted of four point turns and four straight. Right away, the group got to work. Soon, the group found that this challenge was extremely easy. Therefore, the group quickly accomplished it. The only difficulty was that only two people were working on this challenge, the other two members of the group were working on an interview. But since challenge two was not all that difficult, the two people working on the challenge felt as if they did not need the other members of the group to complete the challenge. Luckily, challenge two turned out to be a success.

3. Backing Up
A. In this challenge, the robot must follow the path drawn at the front of the room. The robot will go forward and make a right hand turn at 90 degrees and then back up into a "bay" while making noise.

Picture 4. Programming Code for Third Challenge^

Picture 5. Actual Picture of third challenge^

Difficulties and overview of challenge:
Challenge three was an extremely difficult challenge for the group to do. In fact, the group found that they did not have time to hardly start. Luckily, the group managed to start programming in the Mindstorms software for the challenge. This way, the group has an idea of how the robot should run during the third challenge. Although, the group found that even the programming is very difficult for challenge three. Therefore, challenge three was not completed successfully.

4. Create a Basic Obstacle Course and Program Your Robot to Navigate It!
Instructions: 1.) Using tape create a basic obstacle course. It must contain three different turns (any type of turn- point, gradual, etc.) and involve sensing a sound to begin the course (sound sensor), and coming to a stop once it recognizes the finish line (a black line- sight sensor). 2.) You will need to modify your robot to have both a sound and sight sensor. 3.) Draw an image of your course in OneNote and include it in your wiki entry (Snip It). Your drawing should include measurements (in metrics) such that anyone could re-create. You will also want to photograph it or record a video. 4.) Complete this challenge just as you would any other in the wiki. You must remove all tape from the floor at the end of the class period.
 * Fold both end of the tape for easy tape removal.**

Picture 6: Obstacle Course 1 The drawing of the course! ^^**
 * [[image:robot_obstacle_course_1.jpg width="660" height="343"]]

== Picture 7. **THE REAL COURSE!!! ^^**

Picture 8. **The robot!^**

Challenges of the Obstacle Course:
The group had a very hard time programming the robot to do the right turns and the right speed at the same time. The group had to test the robot many, many times because the group needed to make sure that the robot was running correctly before the group moved on to the other, more complicated, steps. The group found that, if there was a mistake, the group would have to go back on the NXT program and fix the problem. The group also had to make a good guess on the speed or angle on the software, or else the robot would not correctly run on the course. All of this made the challenge much more difficult than the last challenge. In the last challenge, the group completed it just fine, the group successfully completed it. This time, the group obviously had a much more difficult time. Therefore, they group did not successfully complete the challenge. This time, the robot did not run successfully.

media type="custom" key="681991" Video 2: CA7 Interview with Jennifer and Rabiya!

This video is explaining about the difficulties that were encountered and how the robot was programmed to run an obstacle course. This is live from the lab as well!

Sandbox Day:
Task 1 (10 points): At your work area on the table come up with a strategy to calculate the velocity of your robot at 30% power over 70 cm. Repeat the measurement 3 times and get an average. Think about the equation for velocity. Carry out your plan and determine the velocity.

a. Brief description and image (snip and you can upload to the wiki- give your image an uncommon file name) of the programming you used to solve this challenge: The group did three trials. The first time, the robot had a velocity of 6.4cm/s. Both of the second and third trials had a velocity of 8.2cm/s. The average of all three velocity is 7.6cm/s. Programming:[image:task1.jpg width="155" height="123"

b. Description of what made this task difficult for your group: Estimating how long the robot should be programmed to move.

Task 2 (20 points):: At your work area, come up with a strategy to get your robot to accelerate over a 1 meter distance. Have it come to a stop at 1 meter. a. Brief description and image (snip and you can upload to the wiki- give your image an uncommon file name) of the programming you used to solve this challenge: The group had the robot accelerate in the middle of the robot moving for a meter. Programming: b. Description of what made this task difficult for your group: determining when the robot should accelerate within the meter.

Task 3 (30 points):: Determine the velocity of the rotation of the wheels on your robot. Program your robot at 45% power to rotate 10 times. Calculate the velocity of the rotation of the wheels at this power in cm/sec. (Hint: You need to know the circumference of a wheel and remember it goes around ten times!)

a. Brief description and image (snip and you can upload to the wiki- give your image an uncommon file name) of the programming you used to solve this challenge. b. Description of what made this task difficult for your group. We determined the velocity to be 172 cm/13 s.

Task 4 (40 points):: On a graph, plot the velocity that your robot travels 1 meter at 20% power, 40% power, and 70% power. Include an image of your plot in your documentation by snipping it. Make sure it has units and axis labels. Using your graph, determine how fast you think your robot wold be traveling if you programmed it to go at 60% power. Calculate velocity in cm/sec. a. Brief description and image (snip and you can upload to the wiki- give your image an uncommon file name) of the graph. b. Description of what made this task difficult for your group.

Task 5 (50 points):: Create an obstacle course on your lab table with building bocks. It should contain one right point turn and 1 left point turn. The robot should stop at the end where you have built a small tower of blocks. Your robot should not knock the blocks over.

a. Brief description and image (snip and you can upload to the wiki- give your image an uncommon file name) of the programming you used to solve this challenge. b. Description of what made this task difficult for your group.