Engineering & Technology at SVGS

ADVANCED TECHNOLOGY

During this time the students have been working with, creating with and learning about parts of the Adobe Suite of programs.  They started by creating projects with Audition, which is an audio editing program.  The students have recorded themselves on their phones and then edited that audio using Audition.  The program will allow the user to remove or reduce background noise, remove parts of the audio they do not want and the students can add background music.

Next the students worked with Photoshop.  This is always a favorite of students because of the fun they have with their won photos.  They also learn how to add photos as backgrounds to text.  An example is shown below.

The third program they have worked with is InDesign.  This is a page design program.  The students have created single page About Me project that included an image of themselves, text about their activities and classes and added an audio clip of their name, spoken by themselves.  They also made a Greeting Card that is a one-page document that can be folded up to form a Greeting Card.  It had text and art.  They also created tri-fold document to advertise one of the classes they have taken at SVGS.

 

AP COMPUTER SCIENCE

This class is devoted to learning the Java programming language and preparing students for the AP exam in May.  We started with basic data types and have built up to creating classes that have methods using loops, Boolean expressions and more complex data types.  Some of our work has used ideas from their math classes.  Shown below is code to calculate the square root of a number using Newton’s Method.

Students also wrote code to calculate the sine of an angle using a Taylor Series.  These were to illustrate how a calculator or phone might calculate the value displayed when the student punches buttons.

The students have also worked with String or text data.  This is a topic that routinely shows up on the AP exam.  We are looking at how to find characters or words in a piece of text, how to replace that text or just count how many times a letter shows up on that chunk of text.

We are moving into the topics of Inheritance and Polymorphism.  All big words that they can use to confuse their friends!  These are some of the areas of an Object Oriented Programming language that become important as we try to write more complex programs.

Once we finish with these topics we will move to Arrays and ArrayLists.  With those we will have acquired most of the building blocks for APCS and it will be time to use them to write those programs that are more complex than we have written to this point.

CYBER SECURITY OPERATIONS

The Network Security class is continuing its participation in online contests.

CYBERPATRIOTS

 

The Cyber Security class has finished a module on the Linux operating system and command line.  Linux is important because many Internet servers use Linux, and most security and attack tools are written for Linux.  When students know how to use the command line, they can then compile those commands into scripts which automate their tasks.

The class is now beginning a module on networking.  Since networks carry all the traffic between computers, knowledge of networking is necessary to protect computers against attacks.  The class will be using actual hardware (switches and routers) as well as a network simulator called PacketTracer from the Cisco Networking Academy, provided by CyberPatriots.

The class is competing in two Cyber Security contests this semester.  The first is CyberPatriots, which is sponsored by the Air Force Association.  Students are given virtual machine images and required to fix security problems in the virtual machines.  (A virtual machine is entire computer operating system that runs inside of software, VMware Workstation Player in our case.  CyberPatriots competition images use both Linux and Windows.) So far we have participated in the practice and training rounds, and will compete in Round 1 on October 25th.

The class has spent the current week competing in the Radford RUSecure Capture the Flag preliminary round.  We are currently 15th out of 217 teams.  The questions involve cryptology and ciphers, Linux, networking, and other topics.  The Linux questions involve the use of a virtual machine provided online by Radford, and the networking questions require students to examine network traffic using the Wireshark protocol analyzer.

 

 

 

ENGINEERING I

Engineering I began with rapid prototyping of newspaper towers. The engineering design process was explained and experienced. Students have also identified and imagined solutions for some of the many challenges facing society. The reverse engineering of friction cars and research into famous engineering failures helped to promote hands-on skills as well as an awareness of the limitations of engineering designs.

Engineering design teams were formed based on personality profiles and skills assessments. Teamwork and collaboration are important aspects of engineering. With kinematics and dynamics providing mathematical models, we began our study of moving objects. Civil engineering was introduced through the Traffic Jam project as well as surveying and bridge design. The forces on stationary objects was explored using statics.

Mechanical drawing and Autodesk Inventortm are next on the syllabus. Students will develop their drafting skills and use them to design ABS (plastic) brackets for 3D printing and testing. This introduction to mechanical engineering will include torque and finite element analysis through problems and Autodesk simulations. The first semester will culminate with a unit on energy and machines.

ENGINEERING II

Engineering II students also did some rapid prototyping but their primary focus of was building drones. Students developed mechanical, electronic & programming skills as they assembled DJI F 450 quadcopters. Communication and videography skills were required to produce assembly instructions. Students are currently fine-tuning the RC controls and developing their piloting skills in collaboration with Mr. Nylander.

The historical and scientific background for working with drones was developed through research into the history of flight along with the study of fluids, including buoyancy, drag, lift and thrust. Fluid mechanical concepts were examined through an airfoil design project. Airfoil designs were tested in a simulated wind tunnel using  FoilSim, developed by NASA. The relationship between theoretical and practical designs should help with future projects and drone flights.

Engineering II students are also exploring the impact of the industrial revolution on modern society and how innovative thinking and modern technology may be applied to meeting current societal challenges. Students grasp of these concepts will be applied in their long-term project proposals. The next unit will focus on thermodynamics and energy systems.

 

GEOSPATIAL INFORMATION SYSTEMS

GIS began the year with a unit on maps and the basic workings of ArcPro and ArcGIS Online.  They quickly moved past the simple assignments that showed them how to use the tools of ArcPro to doing mini-projects and on-line tutorials.  Students also learned how to make add data to a map using the collector app and how to make story maps on ArcGIS online.They explored the ocean floor with depth sounding by taking readings from a closed box with a simulated ocean floor.  They were able to take use the readings and the Lat/Long coordinates on the box, put them into a map and make them three dimensional.

Students also researched a potentially explosive situation that occurred in Springfield, Virginia and determined how to make detours for the interstates and escape routes for residents to shelters.

Next, they will be presenting their maps about the Chesapeake Bay to practice for the midterm presentations.

INTRODUCTION TO COMPUTER SCIENCE

This nine week period has been devoted to learning the Python programming language.  Obviously we have not learned all of the language but we are making progress.  Students started by working with basic data types and working up to writing programs that used topics they have worked with in Physics class and math class.  A code example is given below.

 

The objective is to gain confidence in coding using loops, conditionals and writing methods of their own.  This is leading up to the students creating a large project during the second semester where they will choose a topic to explore in depth.  Right now we are learning to read data in from a file and then analyze the information.  That may be text of numeric data.  The students will have a chance to choose a book, such as Alice’s Adventures in Wonderland, and see what information we can glean from the text.  We will move to spreadsheet data and learn how to take in that data and both graph and analyze the information.