VEX IQ – programming pathways

 

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The Kiwibots are a Charitable Trust whose mission is to ‘inspire a passion for STEAM’. We believe that the VEX robotics platforms with their associated challenges and competitions achieve this. The VEX challenges were just the beginning for the Kiwibots, we have since discovered that the curriculum and learning support associated with the VEX platform is fantastic.

Everything needs to have a beginning so this description of the programming pathways associated with VEX start with the VEX IQ Challenge1. It is the VEX IQ challenge that the Kiwibots use to get students to find STEM exciting.

The structure of the VEX IQ Challenge is such that no student ever feels that they have lost at technology yet there is a champion at every event. This is achieved by having robots work together to maximise the points they jointly achieve in a game with the points they gain with different robots each game accumulating throughout the day of competition. The tournament champion is the team with the highest accumulated points. In addition, a match is only 1-minute-long and drivers have to hand over control of the robot to a team mate halfway through.

Once we have their attention and they are enjoying the sport of robotics they start wanting their robot to do more. 1 minute is not a long time and students soon realise that having the robot do things automatically is far more efficient than having a drive do it. Success competition created demand for development. This leads them to investigate programming and to start asking questions about robot design. Once this happens the rest is easy.

Teachers: Before you class starts get your students to register with the CS-STEM Network2 (CS2N) as everything they do while they learn can be recorded and tracked online. We call this their CS2N id. More on this later.

Expedition Atlantis

Expedition Atlantis3 is a great starting point for students that have never done any programming before. Introducing them to the concept of numbers to control distance and direction at the same time helping them understand these concepts before they have even thought of programming. It is a great game that is best used in lesson 1 of any program. They should also use their CS2N id when they play the game so their results and progress is logged. It is worth noting that there is a great teacher’s guide4 available to give the teacher background information on the activity.

RobotC for VEX

Having completed the Expedition Atlantis introduction game, it is time for them to start programming. We recommend that schools use RobotC for VEX5 as it is not only free but it has a scratch like Graphical mode19, a Natural Language mode20 and a full blown C mode all in the one application. RobotC can be used on its own without any curriculum support but that is the hard way.

We suggest that students are introduced to programming with Robot Virtual Worlds6 and then given the chance at distinct points in time to switch their code over to the real world VEX IQ robots7. This will maximise the learning opportunities presented to the students.

Robot Virtual Worlds

Robot Virtual Worlds6 (RVW) allows every student to do the course at their own pace without the need to have real world hardware all the time. One student to one computer for self-paced learning is easily achievable. The RVW overview video8 covers the main points of RVW and is well worth watching. Teachers and students are assisted with a wealth of free curricula that will help then through the process of learning and teaching. The curricula takes the form of a guided step-by-step lesson flow9 with a downloadable teacher’s guide10 that gives lesson plans and the background to each lesson’s module.

Teachers: Make sure your students log on to CS2N2 when they do each lesson. This will ensure that their achievements and results are recorded and that these results and progress can be monitored by you online.

RVW needs the Challenge Pack for VEX IQ and EV311 plug-in for RobotC installed in order to make sure that the correct virtual world is available.

Students are able to create their own virtual worlds using the RVW Level builder12 that is a plug-in for RobotC. Students create the world by dragging and dropping objects from an object pallet onto a 12’ x 12’ field along with starting and stopping tiles. A video13 on RVW level builder is available that gives an overview of its capabilities.

RVW combined with the CS-STEM Network is a one stop shop for teaching robotics and monitoring the progress of students following the course.

There are a few inconsistencies but these are being worked on and eliminated and doing the course before using it in classroom will help the teacher get used to what is covered and when.

CS-STEM Network

CS-STEM Network's mission is to develop engaging educational technologies to support teachers teaching computer science, engineering practices, and mathematics using robots

The CS-STEM Network allows students to create groups of lessons that their students can have their results logged against. A free service to the community this is a great way to keep track of students and to get access to resources to help in the planning and execution of courses. Students simply join a group created by a teacher using a code or web link21 given to them and they become part of the group (class).

Real World Robots

Whilst RVW goes a long way to teaching students about programming robots it does not fully replace the excitement a student experiences when they see their real world VEX IQ robots7. obey their commands. This can be bone with several students sharing one robot and taking turns programming it while others work in the virtual world.

Exercises done in the virtual world can be recreate din the real world to give increased relevance to the exercises.

Code that has been tested in the virtual world can be programmed into a real world robot by simply changing the ‘target’ of the software. As long as the robot has been built to the standards indicated in the online class no code will need to be modified. There are build instructions14 at appropriate places in the online lesson that show how to do this for the robot needed. Most of the time it is only sensors that move.

The difference between the virtual world and the real world is that the teacher has the chance to let students learn about mechanics and physics with a real robot. Curriculum15 for the mechanical side of the robots covering gears etc with free teacher’s guides and worksheets are available for download. Hard copies may also be purchased if needed.

CAD links to RVW and real robots

When the time comes teachers may want to bring CAD into their courses. With Autodesk Fusion 36016 this is not only possible but there are great online tutorial videos17 available to help the learning process. Free to educational institutions and students18. Parts designed in Fusion 360 can be imported into RVW level builder or printed and used in the real world.

A complete solution++

The Kiwibots believe that the VEX IQ platform coupled with RobotC 4.x for VEX and Robot Virtual worlds presents the ultimate solution to teaching robotics in the classroom.

Please feel free to contact me if you have any questions.

Chris Hamling

National Manager – Kiwibots

This email address is being protected from spambots. You need JavaScript enabled to view it.

Mob: 021 664 176


References

  1. VEX IQ Challenge http://www.vexrobotics.com/vexiq/competition/competition-resources
  2. CS-STEM Network https://www.cs2n.org/
  3. Expedition Atlantis http://www.robotvirtualworlds.com/atlantis/
  4. Expedition Atlantis teacher PDF guide http://www.education.rec.ri.cmu.edu/atlantis/teacher-guide/teachers%20curriculum%20guide%20for%20mathlantis.pdf and PPT http://www.education.rec.ri.cmu.edu/atlantis/teacher-guide/TeacherPD.pptx
  5. RobotC 4.x for VEX Robotics http://robotc.net/download/vexrobotics/
  6. Robot Virtual Worlds http://www.robotvirtualworlds.com/
  7. VEX IQ robots http://www.vexrobotics.com/vexiq/products/kits-bundles/?ref=tile
  8. RVW intro video http://cdn.robotvirtualworlds.com/videos/RVWInformationalVideo.mp4
  9. RVW guided online lesson http://curriculum.cs2n.org/vexiq/
  10. RVW guidel lesson teacher’s guide http://www.education.rec.ri.cmu.edu/products/teaching_robotc_vexiq/VEXIQ-TeacherGuide.pdf
  11. Challenge Pack for IQ and EV3 http://cdn.robotvirtualworlds.com/curriculumcompanion/files/RVWLevelPack_RVWChallengePack160.exe
  12. RVW level builder http://www.robotvirtualworlds.com/levelbuilder/
  13. RVW level builder video http://cdn.robotvirtualworlds.com/levelbuilder/videos/rvwlb_01.mp4
  14. Typical VEX IQ robot build instructions http://curriculum.cs2n.org/vexiq/lesson/media_files/VEXIQ_buildInstructions.pdf
  15. VEX IQ mechanical curriculum http://www.vexrobotics.com/vexiq/education/iq-curriculum/
  16. Autodesk Fusion 360 overview http://www.autodesk.com/products/fusion-360/overview
  17. Autodesk Fusion 360 tutorials http://www.autodesk.com/products/fusion-360/learn-training-tutorials
  18. Autodesk Fusion 360 for students http://www.autodesk.com/products/fusion-360/students-teachers-educators
  19. RobotC graphical mode http://www.robotc.net/graphical/
  20. RobotC natual language http://www.robotc.net/NaturalLanguage/
  21. CS2N sample group link https://www.cs2n.org/u/groups/join?group_code=e613a7cc

Costs

The table below shows pricing that is believed to be correct at the time of the creation of this document and may change due to supplier price changes and exchange rate fluctuations. The currency of the price is shown to the right of the dollar sign.

Item Number of student Cost GST
Robotc 4.x for VEX unlimited free
Robot Virtual Worlds 30 students $us300pa n/a as online
VEX IQ Super kit 1-3 is ideal $nz508 ea excl
Autodesk Fusion 360 unlimited Free for education
Curricula various Unlimited Free to download
Teacher guides Unlimited Free to download
Autodesk training videos Unlimited free
CS-STEM network Unlimited Free to use
Expedition Atlantis Unlimited Free with RVW
VEX IQ Challenges Free to attend most events Fee to attend national event

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