Category Archives: NOVA Fab Lab

Fab Lab This Month

Fab Lab Events For July

NOVA Makers

NOVA Makers is a special program at the NOVA Fab Lab in which members can utilize advanced fabrication equipment to work on personal and class projects.

Members have access to 3D printers, laser cutters and engravers, a UV flatbed printer, a large format printer/cutter, and a plastic thermoforming center (soldering stations and sewing machines certifications will be available in Fall 2022). Safety and machine trainings are provided along with the issuance of digital micro-credentials as certifications are completed.

Membership is initiated upon completion of a Safety & Orientation session and is ONLY open to high school students, NOVA students, and NOVA faculty/staff. More details on this program can be found in the Membership Handbook.

Register for sessions at fablab.novastem.us/Sign-up

Summer Schedule: June 28 through August 4

Safety & Orientation

Tuesdays | 9:30 a.m. – 10:30 a.m.
Thursdays |9:30 a.m. – 10:30 a.m.

Machine Certification

Tuesdays | 11:00 a.m. – 1:00 p.m.
Thursdays |11:00 a.m. – 1:00 p.m.

Member Open Labs

Tuesdays | 1:30 – 4:30 p.m.
Wednesdays | 9:30 a.m. – 4:30 p.m.
Thursdays | 1:30 – 4:30 p.m.

Fab Lab Design Challenge

 

Congratulations to our NOVA Fab Lab Design Challenge Winners for Spring 2022!

The NOVA Fab Lab held an in-person awards ceremony on Thursday, June 16th to recognize the Spring 2022 Design Challenge winners. As the ceremony’s highlight, students were able to see their designs realized as the actual fabricated products were revealed to them for the first time, alongside family members and friends. Participants also received their prizes, networked with judges and sponsors, and toured NOVA’s state-of-the-art Fab Lab after the event. This year’s challenge was for middle school, high school, or college students to design or refine a product to improve any area of their school. Sponsors for the Design Challenge were BAE Systems, Micron, Amtek Company, Digital Realty, and Dewberry Engineering.

Design Thinking and creative solutions to common challenges are a prominent feature in STEM education and the technology workforce, making the Design Challenge a touchstone for talented young minds to generate ideas in an equitable way. The NOVA Fab Lab’s mission is to decrease the growing skills gap in the Digital Fabrication arena by providing students a more holistic fabrication experience, including access to the most advanced processes, training in 3D Modeling and design, and a foundation in the principles of Design Thinking and creative problem solving.

With a goal of broadening participation and meeting students where they are at, NOVA allowed student entries in any format, including hand-drawn submissions. This was done to re-focus the goal away from simply displaying digital proficiency and more toward ‘solving a problem’ in their community. “One of the Fab Lab missions is to empower students to think and fabricate in unison and help them unlock their potential to recognize and solve complex problems” said Richard Sewell, NOVA’s Fab Lab Coordinator.

Prior to the final submissions, the NOVA Fab Lab provided 16 free Dominating Our Design Challenge prep sessions in February and March. The first, entitled Using Design Thinking, provided a process for moving an idea to a functional solution. The second, Learning the Tools,helped participants learn the strengths and weaknesses for rapid prototyping on four common fabrication technologies: laser cutting, 3D Printing, CNC Routing, and plastic thermoforming. Dominating Our Design Challenge sessions were utilized by 141 participants in 4 locations: Prince William Public Libraries, Arlington Tech, SERVE Family Shelter, the NOVA Fab Lab, and virtually.

After the design submission deadline of April 17, the Fab Lab received 62 total entries, comprised of 123 participants. Once submitted, participants were judged based upon their digital or hand-drawn designs and written descriptions. The top three then had their winning designs fabricated by our Fab Lab team using a CNC router, woodshop equipment and hand tools as well as a Stratasys F370 3D printer and received their fabricated products at the ceremony.

The 1st place award was won by a two-person team consisting of Eli Reeder and Logan Pennington from The Nokesville School for their product titled, iDesk, which is a desk with an iPad screen and charger built-in. The iDesk solves the problem of having to charge laptops and is purposed so that teachers can send assignments directly to the desk tablet. Eli and Logan won the top prize of $500 plus an Ender-3 S1 3D printer, certificate plaques, and their fabricated product.

NOVA’s own Carmen Chica earned 2nd place with her All In Chair design, a desk with a wide backplate chair composed of two adjustable arms to create right-handed and left-handed usage, so all students feel included. Carmen was awarded $300, a 3D printer, a certificate plaque, and her fabricated product.

The 3rd place award went to Harris Lechtman, from George C. Marshall High School for his Study Buddy Organizer, which offers a solution to limited desk space through an attachment that holds a phone, a drink, pencil slots and other sections for desk items. Harris won $100 plus the 3D printer, plaque, and his fabricated product.

Fab Lab Coordinator Lance Lacey reflected on the payoff of a design coming to realization: “I always enjoy seeing the students expressions as they interact with the physical prototype of their idea for the first time. Before it was an idea and a sketch, but then they see an actual functioning product!”

There were also three honorable mention designs: Eva Torrico from Thomas Jefferson Middle School submitted a Terretami Fork, which combines a spoon, fork, knife, straw, chopsticks, and a milk puncturer all into one reusable utensil.

Tyler Freeman, Connor Freeman, and Lucas Morton from MOT Charter High Schooldesigned a Recyclable Lunch Tray with biodegradable and recyclable material that can be vacuum-formed to allow for bulk-production.

Devin Gerdes, from NOVA, was recognized for Print Catcher, which is a customized basket that prevents sheets from touching the ground once they have been printed.

The Design Challenge is made less of a challenge for NOVA SySTEMic to organize thanks to the generous support of our sponsors: BAE Systems (special thanks to David Sargent and Hannah Wilson), Micron (Zuzana Steen and Robert Simmons), Amtek Company (Alex Baddock), Digital Realty, and Dewberry Engineering (Arlene Evans and Barry Dewberry–Arlene is a NOVA Alumna!)

Industry representatives also served as Design Challenge Judges: from BAE, Jim Sturim (a Project Engineer) and Elly Taylor (a Test Technician). From Digital Realty, Karen Petersburg (a Design Manager), and from Dewberry Engineering, Carmen Bere (a Project Engineer).

The Design Challenge also received stellar support from NOVA, including Dr. Chad Knights, VP of IET and College Computing; IET Dean Paula Ford, Dean of Math, Science, and Engineering; Dr. Abe Eftekari, NOVA SySTEMic Program Manager; Aleksander Marthinussen and Kelly Persons from the NOVA Foundation. NOVA Faculty Nina Lord and Michael Spiller also brought their classes over to the Fab Lab to participate.

Additional recognition and thanks to Kristen Burnham from Prince William Public Libraries, Michelle Van Lare from Arlington Tech, Brittany Greer from Rosie Riveters and Amrata Sahasrabudhe from SERVE Family Shelter.

Finally, special recognition goes to the NOVA Fab Lab team including Lance Lacey, Richard Sewell, Brendan Murphy, Kai Le and Valerie Bierhuizen, who developed, strategized and implemented Design Challenge procedures for months, as well as providing effective outreach to get all participants and sponsors involved.

NOVA SySTEMic Coordinator Brendan Murphy reflected on the focus of student creativity: “We built the challenge to be intentionally open-ended to allow for a wide variety of solutions. It’s truly exciting and inspiring to see the creative ideas that students design.”

First place winners Eli Reeder and Logan Pennington had some sage advice for aspiring future Design Challenge participants; “No idea is a bad idea,” said Eli. “Don’t stress out, because you have a lot of time to do it. You spend most of your time brainstorming. Keep it simple,” Logan added. “If you have a good idea already, don’t stress yourself trying to improve it, just tweak the small things.”

The inaugural Design Challenge Ceremony in July 2021 began the process of bringing back in-person events to the Fab Lab. Going forward, the challenge will be held twice-a-year, in both the fall and spring semesters and is open to middle school, high school and college students.

More information about the Fall Design Challenge will be available here and on the NOVA Fab Lab page by the end of the summer.

#WeDoSTEM #DesignThinking

SySTEMic Fellowship

The SySTEMic Fellowship is a 10-month paid program designed to develop high school students, college students, and professional educators through hands-on experiences and training on vital STEM content with the opportunity to apply these concepts outside of the classroom to promote STEM education in Northern Virginia.

Those admitted to the program will choose one of three fields of focus: Fab Lab Makers, Robotics, and Micro Electronics. The program contains training sessions on the chosen field of focus, opportunities to contribute to existing programs, as well as a call to action to continue to implement ideas learned in the fellowship.

Training for Fellowships are scheduled for Sept 17 and Oct 1, 2022.

For more info contact Natasha Shuh-Nuhfer at nschuhnuhfer@nvcc.edu 

You can also sign up for our monthly newsletter, The IET Interface, at http://newsletter.novastem.us to keep up with application information and other STEM fellowship opportunities at NOVA.

Design Thinking Fellowship at the Fab Lab

Saturday May 7th marked the last day of professional learning for the educators in the Design Thinking Fellowship! Teams had worked over the semester to design a LEGO storage solution for a user with specific needs, and this was their chance to prototype and test their ideas.

After all this preparation, educators built small scale “rough prototypes” of their designs using cardboard, hot glue, and common crafting materials. Fellows then gathered testing data from their prototypes before presenting their work and explaining their thinking to their peers.

Next, fellows will be practicing teaching what they learned during SySTEMic’s digital fabrication summer camps. Working in groups of three, educators will deliver modified version of the LEGO challenge they just completed to elementary and middle school students across the region.

Fellow Dahlia Henry-Tett, NOVA faculty, reflected on the experience:

“We have to be in the place of a student more frequently. We sometimes forget what it fills like to start, to try things in a different way. Being here as an instructor, as a teacher, allows me to feel like a student again, to see the struggles that they’re going through, trying to create things. It allows me to be better as a professional. Also the skills I’m learning for Design Thinking will carry into my classroom and allow me to use a different method that will help these students think differently about how to approach things.”

DCO Tech Externship Educators Tour Micron and Stack

Engineering technology teachers, counselors, and administrators had the opportunity to tour Micron and Stack Infrastructure this month as part of a NOVA Secondary Educator Externship to help guide students into Engineering Technology careers. There are more tours available for June.

This Externship program is a component of an NSF funded grant awarded to NOVA to expand the pipeline of students preparing for careers in engineering technology. It helps teachers, counselors, and administrators develop first-hand knowledge of engineering technology through higher education and industry connections.

Participants tour local facilities, engage in discussions with industry and higher education leaders, and develop a plan to guide their students to careers in engineering technology.

Participants must participate in a tour of Micron Technology in Manassas and STACK Infrastructure in Ashburn as well as tour NOVA’s Fab Lab and engage in discussion about NOVA programs.

Students who completed NOVA’s Career and Leadership Readiness Institute have been invited to join the externship participants to learn about engineering technology careers and opportunities with industry partners.

Tours of Micron Technology and STACK Infrastructure were held in April and May. The Secondary Externship application is still available, with final tour dates of both sites scheduled for the end of June.

For more information go to iet.novastem.us/Externship2

Fab Lab Activities in December

 

Save the Date for December Tours and Workshops!

Dominating our Design Challenge Series
College students, high school and middle school students from all academic disciplines and backgrounds are encouraged to enter the Fab Lab Design Challenge that will be released in February 2022.  The Challenge is sponsored by our industry partner, BAE Systems, and all sessions are offered free of charge.  Although the challenge’s mission is to inspire innovation in fabrication, we want those with great ideas to participate, regardless if they have little to no experience on these topics.  To support applicants, we are offering the following prep session:

Dominating our Design Challenge: Using Design Thinking
This virtual session will explain the five steps of Design Thinking to provide participants with a repeatable process for moving an idea to a functioning solution. The session will include examples of Design Thinking best practices, virtual team exercises in brainstorming, and a reference guide.  Free and virtual format via Zoom.  Two session choices:
Mon 11/29: 6-8pm (Click HERE for more info)
Thurs 12/9: 6-8pm (Click HERE for more info)

Dominating our Design Challenge: Learning the Tools
Whether it is turning a digital design into a 2D, 2.5D or a 3D model, or building a physical model from scratch, this in-person session will focus on four common fabrication technologies (laser cutting, additive manufacturing-3D printing, CNC routing, & plastic thermoforming) that can be used to bring your idea into physical space.  This session focuses on the strengths and weaknesses of each of these different processes and how they can be used in rapid prototyping.  Participants will be able to see equipment demonstrations of how each process works.  Free and in-person at the NOVA Fab Lab (Manassas campus).
Mon, 12/6: 6-8pm (Click HERE for more info)
Thurs 12/16: 6-8pm (Click HERE for more info)


Tours
NOVA Fab Lab guided in-person tours will be provided for participants to view the spaces and equipment in the Makerspace, Woodshop, and college Mechatronics labs. Open to the public, no registration required .
Sat, 12/4: 10am-2pm (tours start every half hour)
Location: NOVA Manassas Campus, Trailside building, first flr
Address: 10500 Battleview Parkway, Manassas, VA 20109


Mini-Workshop Laser Cutting: Holiday Decoration 

The Lab will be open to the public for a mini-workshop where participants can create a personalized Laser Cut Holiday Decoration. Participants can come and go at any time. The workshop is FREE, no registration required.
Sat, 12/4: 10am-2pm (tours start every half hour)
Location:
NOVA Manassas Campus, Trailside building, first flr
Address:
10500 Battleview Parkway, Manassas, VA 20109


Find more information at www.nvcc.edu/systemic/fablab.html

Design Thinking Fellowship

NOVA is recruiting for the first cohort of Design Thinking Fellows! This NSF-sponsored program is open to college faculty, middle and high school teachers, and informal STEM learning professionals. During this 9-month fellowship, participants will learn how to integrate design thinking into their pedagogy through a professional learning institute, teaching during a 1-week summer camp, and leading their classes through a design challenge. Fellows will receive a stipend of $2,200 for participation.   

Please register here to be updated about the session and application process.  

Feel free to contact systemic@nvcc.edu with any additional questions!  

Fab Lab Activities in November

Sign Up For Our November Workshops!

Sewing Machine 101
Do you want to learn how to use a sewing machine? We can teach you how! Bring your sewing machine or learn on one of ours. In this workshop, we will show you how to use a sewing machine from winding a bobbin, to threading your machine, to sewing your first project – a drawstring bag. You’ll leave feeling confident that you can sew on your own!
Mon 11/15: 6:00-8:30 pm
Click HERE for more info and to register.


STEMinars

Dominating our Design Challenge Series
College students, high school and middle school students from all academic disciplines and backgrounds are encouraged to enter the Fab Lab Design Challenge that will be released in February 2022.  The Challenge is sponsored by our industry partner, BAE Systems, and all sessions are offered free of charge.  Although the challenge’s mission is to inspire innovation in fabrication, we want those with great ideas to participate, regardless if they have little to no experience on these topics.  To support applicants, we are offering the following prep session:

Dominating our Design Challenge: Using Design Thinking
This virtual session will explain the five steps of Design Thinking to provide participants with a repeatable process for moving an idea to a functioning solution. The session will include examples of Design Thinking best practices, virtual team exercises in brainstorming, and a reference guide.  Free and virtual format via Zoom.  Two session choices:
Mon 11/29: 6-8pm (Click HERE for more info)
Thurs 12/9: 6-8pm (Click HERE for more info)

Dominating our Design Challenge: Learning the Tools
Whether it is turning a digital design into a 2D, 2.5D or a 3D model, or building a physical model from scratch, this in-person session will focus on four common fabrication technologies (laser cutting, additive manufacturing-3D printing, CNC routing, & plastic thermoforming) that can be used to bring your idea into physical space.  This session focuses on the strengths and weaknesses of each of these different processes and how they can be used in rapid prototyping.  Participants will be able to see equipment demonstrations of how each process works.  Free and in-person at the NOVA Fab Lab (Manassas campus).
Mon, 12/6: 6-8pm (Click HERE for more info)
Thurs 12/16: 6-8pm (Click HERE for more info)


NOVA Makers
NOVA Makers is a program at the NOVA Fab Lab in which members can use the lab to work on personal projects, participate in regional/national design challenges, and/or gain more skills in a Maker community setting. Currently the technologies available for projects are additive manufacturing (3D printing), laser cutting/engraving, and hand tools.  A NOVA Fab Lab membership, a safety and orientation training, and machine specific certifications are provided and required as part of this program.  Membership is open to NOVA college students, faculty & staff, and high school students.  Find more information at www.nvcc.edu/systemic/fablab.html

 

VEX Community Teams and Friday Night Robotics


VEX Community Teams (VRC & VEXIQ)
Registration Closes Oct 15 http://vexcommunityteam.novastem.us/register

VRC (VEX Robotics Competition) Teams
Participants will build MOBY, a VRC robot to compete in the VRC game Tipping Point. Students will learn how to compete in the VRC yearly competition, make an engineering notebook to document team decisions on robot design, develop a game strategy and create an autonomous program to play the game. This session is perfect for students who want to compete in robotics.

After students learn the game, develop a game strategy, and have a solid foundation of engineering and programming, they will be allowed to make advanced modifications to their robot as well as explore more advanced programming features to enhance the efficiency and effectiveness of their robot on the field.

In addition to the weekly meetings there are Friday Night Robotics in the Fab Lab (every 2nd and 4th Friday of the month) where it is open to any teams to come build, program and scrimmage. This is optional for the community teams but encouraged.

There will be opportunities to compete in robotics competitions as well and teams can register for an additional fee to participate.

Oct 5 through Dec 14, 2021 on Tuesdays from 6pm to 8:30pm at the NOVA Manassas Trailside Building.

Grade Level: 6th to 10th

Registration Fee $349 ($50 discount when you register 2 people)
http://vexcommunityteam.novastem.us/register

VEX IQ (VIQC) Teams
Participants will continue building FLING, a VIQC robot to compete in the VIQC game Pitching In. Students will learn how to compete in the yearly challenge, make an engineering notebook to document team decisions on robot design, develop a game strategy and create an autonomous program to play the game. This session is perfect for students who want to compete in robotics.

After students learn the game, develop a game strategy, and have a solid foundation of engineering and programming, they will be allowed to make advanced modifications to their robot as well as explore more advanced programming features to enhance the efficiency and effectiveness of their robot on the field.

In addition to the weekly meetings there are Friday Night Robotics in the Fab Lab (every 1st and 3rd Friday of the month) where it is open to any teams to come build, program and scrimmage. This is optional for the community teams but encouraged.

There will be opportunities to compete in robotics competitions as well and teams can register for an additional fee to participate.

Oct 7 through Dec 16, 2021 on Tuesdays from 6pm to 8:30pm at the NOVA Manassas Trailside Building.

Grade Level: 4th to 8th

Registration Fee $349 ($50 discount when you register 2 people)
http://vexcommunityteam.novastem.us/register


Friday Night Robotics at the NOVA Fab Lab

The NOVA Fab Lab is open on Friday nights for VEX teams to scrimmage and work on their robots throughout the year.

The 1st and 3rd Friday’s of the month are designated for VEX IQ Challenge (VIQC) teams and the 2nd and 4th Friday’s for VEX Robotics Competition (VRC) teams.  A game field will be available along with space for teams to work.

Sessions will start on Sept 17 from 5 to 10 pm and continue until the Virginia State VEX Championship in March 2021.

A one-time registration fee of $10 per participant is required for this recurring event at fablab.novastem.us/FridayNightRobotics (NOTE: Parental consent is required in the registration process as each participant needs to register – coaches cannot sign-up their entire team in one registration).

#WeDoSTEM

Fab Lab Activities in October

NOVA Makers 

NOVA Makers is a new program at the Fab Lab in which members can use the lab to work on personal projects, participate in regional/national design challenges, and/or gain more skills in a Maker community setting.  Membership is open to NOVA college students, faculty & staff, and high school students.  Register at http://fablab.novastem.us/Sign-up 


Middle School Maker Club 

Starting Saturday, October 16th, middle school students will be able to participate in a Maker Club at the NOVA Fab Lab. The use of fabrication equipment (such as 3D printers, laser cutters, plastic thermoforming machines, etc.) in conjunction with other technologies will allow for integrative making experiences. Register at http://fablab.novastem.us/Sign-up    


Bristlebots & Book Read: This is What An Engineer Looks Like 

On Saturday, October 9th from 10:30am to 12:00pm, young children will be able to build and test a motorized bristlebot, read and hear from the author of This Is What An Engineer Looks Like, and learn about STEAM careers and engineering.  The 17-year-old author and illustrator, Ayonnah Tinsley, will be participating via live stream to read and discuss her book.  Ayonnah is a Congressional Award Gold Medal recipient for her extensive volunteer efforts and STEAM awareness activities.  Her book educates young students on STEAM careers with an emphasis on encouraging women and minorities to enter STEAM fields.  Participants will receive a copy of the book and be able to take home their bristlebot.

After the session, an optional tour of the Fabrication Lab will be available.  Open to children in kindergarten through 4th grades. Cost is $45 per child or free for children of NOVA Students.  Open to the public. Pre-registration is required at http://fablab.novastem.us/Sign-up.   


 3D Printing Challenge – Tiny House Winner! 

Congratulations to Daniel Moone for his winning design of a 3D Printed Tiny House!  This challenge was open to all participants in four of our 3D Printing Fabrication Camps this summer.  Campers had to meet certain specifications while using CAD software to design their scaled models.  Each design was then fabricated using additive manufacturing (Stratasys F123 series 3D printers) and judged based upon the physical prototype.  Daniel received our top prize of an in-person tour of the Fab Lab, a Parallax Scribbler 3 Robot kit, and his fabricated tiny house.      


Grant News: NOVA awarded NSF ATE Grant Award – Makers By Design

The National Science Foundation (NSF) recently awarded NOVA a three-year grant, set to begin in September 2021, to establish a Professional Learning program in design thinking pedagogy for secondary and postsecondary educators. Makers By Design (MBD) as we call it, is officially titledSupporting Instructors to Embed Design Thinking in Digital Fabrication Courses.

Makers By Design Overview:

> Manufacturing and engineering technologies industries are facing a looming skills gap.

> Employers identify increasing need for soft skills (critical and design thinking, problem solving and communication) as manufacturing transitions to high-tech.

> There is a need to align engineering and engineering technology with industry defined technical and soft skills.

> MBD is a professional learning (PL) program for secondary and postsecondary educators focused on developing design thinking pedagogy through digital fabrication (e.g. 3D printing, laser engraving, CNC) techniques.

> Aligned with NSF includes broadening participation in STEM for underrepresented minorities.

> MBD will foster a community of practice between teachers, faculty, makerspace educators and industry.

The grant curriculum will focus on design thinking projects that involve digital fabrication techniques, including 3D printing, laser engraving, and Computer Numerical Control milling. The Professional Learning program is expected to improve the educator’ teaching practices and enable them to update existing curricula and lesson plans to better align with industry relevant skills and techniques. The project also intends to create a community of practice around design thinking in digital fabrication that will build a beneficial network among secondary teachers, community college faculty, makerspace educators, and regional employers. It is expected that the project will support 36 secondary and postsecondary educators who will teach more than 3,000 K-12 and undergraduate students in the northern Virginia region. These students will have greater interest in and be better prepared for technical careers in manufacturing and engineering.

The overarching goal of the project is to use Professional Learning to move digital fabrication instruction beyond the reproduction of simple objects. Instead, the project will train educators to use pedagogy and cognitive strategies to embed design thinking into their digital fabrication lessons and courses. As a result, students will learn to use design thinking to build complex, useful objects.

The project’s specific aims include to: (1) create a professional learning institute; (2) host digital fabrication summer camps at NOVA and the Boys and Girls Club of Greater Washington; (3) host a semiannual design and digital fabrication challenge; and (4) establish an online resource library of projects and lesson plans created and refined by educators in the community of practice. The project is expected to advance: understanding of the pedagogies that help to develop student interest in manufacturing and engineering; the capacity for Professional Learning to facilitate integration of design thinking into classrooms and makerspaces; and the extent to which a capstone design challenge may foster sustainable change in instructional practices. This project is funded by the Advanced Technological Education program that focuses on the education of technicians for the advanced-technology fields that drive the nation’s economy.

The NOVA Fab Lab has a Makerspace utilized by many NOVA programs and the community as well as a new Makers Program for college students coming up this fall

Go to http://fablab.novastem.us/Sign-up for current Fab Lab program/event registration and check out the NOVA Fab Lab Page on our website.


Outside Resources

Computer Science Instructional Resources & Professional Learning

In partnership with Prince William County Schools (PWCS), NOVA SySTEMic developed instructional resources that align with the 6th Grade Computer Science Standards of Learning.  Funding for this project was provided by the Virginia Department of Education’s (VDOE) Advancing Computer Science Education grant that was awarded to PWCS.  Additionally, professional learning sessions were offered to educators by NOVA SySTEMic staff to introduce and guide educators through the created activities.  The resources are available to all educators on the #GoOpenVA site at  https://goopenva.org/courseware/lesson/4078/overview .