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=Team Name:= Geeks =Team Symbol:= =I. Team Members Names (First Only)= Kerri, Kiran, and Shay

=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 (Template)=

Copy this section for each of your challenges:

DATE: 4/?/2009
Title of Challenge: A. Description (Short Paragraph): B. Programming Code (Picture and Written Explanation): C. Multimedia: D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph):

DATE: 4/21/2009
Title of Challenge: Point Turn (Challenge 1)

A. Description (Short Paragraph): The purpose of this challenge was to get the robot to move forward 25 cm. Then, the robot had to make a point turn (180 degrees) to the left. Last, the robot had to travel 10 cm backwards.

B. Programming Code (Picture and Written Explanation): In this programming code, there are three "moving" commands. The first one commands the robot to move forward. This is indicated by the first arrow pointing up. The second commands the robot to make a point turn to the left. This is indicated by the first curved arrow. The last one commands the robot to move backwards, which is indicated by the first arrow pointing down.

C. Multimedia: media type="custom" key="3698293" Video 1. Interview of Challenge 1 with Shay media type="custom" key="3698301" Video 2. Robot doing Challenge 1

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): It was not that difficult to complete this challenge. At first, the robot would not fully turn the 180 degrees, or it would turn to the right instead of the left, but these problems were quickly and easily fixed. To make the robot turn 180 degrees, the duration of the turn was changed. When you click on each command, a box of qualities of the commands pops up. One of the qualities you can change is the duration. It started out as just 0.75, but when it was changed to 1, it made the full point turn to the left. When the robot turned to the right instead of the left, it was just flipped around.

DATE: 4/24/2009
Title of Challenge: Square (Challenge 2) A. Description (Short Paragraph): For the second challenge in the robotic experiment, the robot had to trace the square taped on the science room floor. The square that the robot had to travel around was 63 cm by 63 cm.

B. Programming Code (Picture and Written Explanation): In this challenge, the title explains itself. The robot had to trace a square on the floor. The first command is to move forward, and the second is to make a 90 degree turn to the right. The robot repeats this process two times, and then completes the square by moving forward to where it had started.

C. Multimedia: media type="custom" key="3710141" Video 3. Robot Completing Challenge 2 media type="custom" key="3710261" Video 4. Interview with Kerri about Challenge 2

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): Towards the end when the robot was being tested officially on the taped square, it would not make the last 90 degree turn. Instead of turning a 90 degree angle, it made a larger angle and traveled off the tape square. It was discovered that the duration and power of the turn was not properly adjusted. After fixing these small problems, the robot successfully traveled along the taped square.

DATE: 4/24/2009
Title of Challenge: Backing Up (Challenge 3) A. Description (Short Paragraph): The purpose of the third challenge was to get the robot to travel in a certain shape that was again taped on the science room floor. The robot had to travel forward, and then make a 90 degree turn to the right. After this, the robot had to travel forward a bit. Then, it had to back up while making a noise (it didn't matter which noise was used) at the same time. This concluded the third challenge.

B. Programming Code (Picture and Written Explanation): The first command in this programming code is to move forward. This is indicated by the arrow pointing up in the moving command. The second command in the code is to make a 90 degree turn to the right. This is indicated by the right arrow on the moving command. The third command in the code is to make a sound. The sound type and length of time the sound is made is determined by clicking on the command and editing it in the NXT program. (By un-checking the "wait for completion" choice on the sound command, the robot will make the sound and then start moving backwards before it finishes playing the sound.) The last command is to move backwards. This is indicated by the arrow pointing down in the moving command.

C. Multimedia: media type="custom" key="3716431" Video 5. Robot doing Challenge 3

media type="custom" key="3748429" Video 6. Interview with Kiran about Challenge 3

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph):  There were several difficulties encountered while trying to get the robot to trace the figure on the science room floor. First off, in the instructions for the 3rd challenge it states that the robot needs to make a noise while backing up. Whenever the robot was commanded to perform a sound in the obstacle, it would travel forward as it was supposed to, but then it would just stop. When it stopped it would make the beeping noise for a few seconds. To fix this and make it so that the noise played __while__ the robot was moving backwards, a loop was put around the physical direction and the sound direction. After that barricade was overcome, a new problem presented itself. It was shown that the robot was traveling too far backwards over the line. Not only would it do that, but it would stop, and then start, and then stop, and then start again. To fix this, the controls were experimented with until the robot went the correct distance.

DATE: 4/5/2009
Title of Challenge: Obstacle course (Challenge 4) A. Description (Short Paragraph): For this challenge, each group had to create an "obstacle course" for the robot on the science room floor. There was some criteria that needed to be followed. The obstacle course had to include 3 different types of turns. Also, the robot had to start the obstacle course by a sound sensor and had to stop by using a sight-sensor. The task was to successfully program the robot to follow this obstacle course. Unfortunately, the group was not able to finish this challenge, so the robot was not able to stop using a sight sensor.

B. Programming Code (Picture and Written Explanation):  To begin the fourth challenge the programming was set up so that the robot would respond and begin to move by the sound of clapping. After that was completed there was a straight forward line with duration of 2.1. Then, there was a left turn with duration of 1.8. Next there was another straight line with duration of 1.5 and another left turn the same as the first one. Then the robot traveled another straight line with duration of 0.25 and a right turn with duration of 2. Then, a left turn with duration of 0.25 and a straight line with duration of 3. Each other programming boxes are on full power strength.

C. Multimedia: media type="custom" key="3761645" Image 1. Challenge 4 Obstacle Course

D. Difficulties Encountered/How You SOLVED the Challenge! (Paragraph): The first difficulty that was faced while completing Challenge 4 was the turn at the beginning of the obstacle course. The robot was supposed to travel on a straight line for 35 cm and then make a 90 degree turn to the right. The straight line was easy to program correctly, but the turn was difficult. When the robot was instructed to do this, it would always turn to the left instead of turning to the right. To fix this, the direction of the turn was reversed. Once this problem was fixed, it was realized that all the other turns presented a problem. Since the course had many turns, it was difficult to program it correctly. Unfortunately, Challenge 4 was not completed.