Interesting Links 26 September 2016

We celebrated my grandson’s second birthday yesterday. Somehow I couldn’t get into putting this post together afterwards. It felt like work. Having grandchildren changes perceptions. But now I am at work and have things to avoid doing so this feels like a good idea. Ever have a day like that? Plus there are some good links that really should be shared.

We Have to Start Thinking About Cybersecurity in Space I’m not sure I want to but we probably do.

Students ask me "What other kinds of jobs can a person get with a computer science degree besides a developer?" Other jobs in CS post by Marty Stepp Lecturer, Computer Science Department, Stanford University

How six scrappy young inventors built a breakthrough text-to-Braille translator device Spoiler alert: The whole team is young women.

Barriers to Stack Overflow Use for Females by Mark @guzdial For myself I wonder how the field, especially via the Internet, acts towards beginners of all kinds.

Are you developing primary computing in your school? Find out what has worked in Hampshire, England http://code-it.co.uk/cpd

How Microsoft wants to 'solve cancer' using computer science via @CNNMoney Quite a story. Computer science means getting involved in a lot of big deals.

Why I Teach Kids to Code at the EE Times by ex-Microsoft person (and friend of mine) Lynn Langit via @eetimes She’s doing some great work.

Humor. Or is it? I showed the below to my students so we could talk about is.

"Spaces or tabs?" "Semicolons."

When But It Works Isn’t Enough

I saw this image on Twitter recently. It was captioned:

"Spaces or tabs?"
"Semicolons."

It’s all perfectly legal C or C++ code. And a decent compiler will handle it just fine. But oh is it ripe for bad things to happen. Of course this is just a humorous example. No one would ever do it. Right?

On the other hand I have seen some code that was pretty hard to read. Students need to learn the value of programs that people can read as well as the computer. Somethings that get in the way of people understanding code can lead to things the computer gets wrong as well. At best they make it hard to update, modify, enhance, or fix programs. A working program that is unreadable by people is not as useful as one that people can read.

Another  of the things I see regularly is student code that compiles and executes and gives the correct answers but is horribly inefficient. Or it takes advantage (often unintentionally) of side effects that are not always going to be consistent, for example across different libraries. Or they just plain do things the hard way.

I’ve been working with my students on loops and if statements. We created a program that works just fine for small samples but it doesn’t scale easily. By adding arrays we can make it much more scalable but we haven’t introduced arrays yet.  When we do they’ll see better, easier ways to do man things. This particular program will seem obvious to almost every student. Not all optimizations are as obvious though. This is something we have to teach.

Beginners are often ready to settle for “it works. it gives the right answer. What more does it need?” Eventually many of them will get to a point where performance is an issue. Or maintainability will be an issue. Sure many will never get there but increasingly I think we do students a disservice if we are willing to accept work that is not as good as it could/should be for the level of knowledge.

Bug Reports

I saw the following tweet earlier today.  Still earlier in the day I read a post on Mark Guzdial’s blog about Barriers to Stack Overflow Use for Females which had me thinking about how people ask for help on Stack Overflow.

Basic computer literacy should include how to write a good bug report.

— Dave Winer (@davewiner) September 21, 2016

What is the connection? Well it seems to me that one source of frustration and negativity on Stack Overflow is related to people not reporting bugs well. In general beginners do a poor job of reporting bugs. Experts, like those on Stack Overflow, often lack patience with poor bug reports.  Teachers don’t have the option to be impatient though. It is our job to work with students to help them understand. That means helping them learn to report bugs.

A student will often start by reporting “my program doesn’t work.” Somehow they think that is enough information. Of course it is not. The definition of a program not working is a broad one. “Why doesn’t your program work? Because you have done something wrong.” Two completely accurate statements without a trace of enlightenment in them.

Often I mind myself asking “What does ‘doesn’t work’ mean?” The process of analysis and developing an understanding of the basic problem has to be taught. Students don’t always know how to describe the problem.  It is as if they stop thinking when something unexpected happens. Part of teaching has to be to help students look for and acquire more information about the problems they are seeing.

Another problem is a lack of vocabulary. What is a stack overflow anyway? Sure an experienced person knows but the student decides that maybe he can have his function call itself soon discovers that “something bad happens” even if he doesn’t understand why it happened.

One of the things I have to get students to share when they have troubles is what problem are they drying to solve. What they think is the solution my be breaking because it really isn’t a good way (or a way at all) to do what they need. Explaining the problem they are hoping to solve often leads directly to understanding what is really going wrong with a project.

Student’s usually want and sometimes need hints (Would You Like a Hint? ) but we have to help them learn how to report/explain their issues first. If not we’re not really helping them learn at all. We’d just be giving answers away.

Interesting Links 19 September 2016

The big news last week was the launch of the CSforAll Consortium  with over 180 members committed to K12 CS Education. That was not all I picked up last week though. I’m pleased to have a good bunch of links to share with you today.  Let’s start with some CSTA news in case you missed it!
Have you seen the new @csteachersorg Standards Video  Computer Science Teachers Association standards announcement video.
ACM and the CSTA announced new awards for teaching excellence in computer science funded by the Infosys Foundation. Very exciting! Are you a good candidate? Check it out soon.

Interested in hosting a Family Code Night? there is a free kit for elementary schools available online. Sets start people thinking about (and in) code early.
  There is a new drone programming course for schools, Drones 101 from @gotynker I think I need a drone. Are you using one or more with students?
Robot Reinforces Learning Interesting article on the Blo0g @ACM  about “Quinn provides feedback to the students through an easily recognizable facial emotion set, here smiling to indicate approval.”

Computer Science–Because it is Magic

Seems like a number of people have been blogging  about computer science for everyone this week. This may well be related to this week’s Computer Science For All Summit at the White House and the announcement of the new CS For All Consortium. Or maybe coincidence. I don’t really know. What I do know is that today brought a post by Mehran Sahami (a really smart guy who teaches at Stanford) called Why Computer Science Education in K-12 Settings Is Becoming Increasingly Essential. It does a very good addressing some of the concerns about trying to teach CS to everyone. But there was one, in my opinion, money quote.

Arthur C. Clarke mused that “any sufficiently advanced technology is indistinguishable from magic.” Providing a CS education can potentially lead a child who wishes that magic really existed in the world to realize that maybe it does, and inspire them to use that magic for our common good.

Computer science is a lot like magic to a lot of people. I even hear students from time to time explain “It’s like magic” when their program works right. Yes, they do say that.  After all the years I have been writing code it still sometimes feels like magic.

But magic or science, computer science does have the power to change the world for the common good. That is sort of magical itself.

Teaching Beyond Programmer’s Programs

There is a difference between computer science and software engineering. There are some big and important differences. There is of course a lot of overlap. In any course advertised as “computer science” there is some tension about how much software engineering to include. In some senses this comes most into play when talking about the difference between a program that is usable only by the original programmer and one useable by just about anyone.

I have a bunch of the first type. For example I have a phone app that I use to keep track of the rotating schedule my school uses. It works well for me but I couldn’t easily hand it off to other teachers to use (even if they had Windows Phones) because it uses some initialization files that are not really that easy to set up. If I wanted to make this program easily usable by other teachers I’d have a lot of extra work to do. That may be the best example of the difference in my mind – software engineering is about making programs lots of people can use without deep CS knowledge or knowledge of how the program works internally.

Now of course Human Computer Interaction (HCI) is part of any good university computer science program but just how much of that can fit in a high school single semester course is an open question. Even a year long course, especially an Advanced Placement course, has limited room for software engineering concepts. Still I feel like it is important to include as much as does fit.

A program that does everything is is supposed to do but that is very hard to use soon becomes unused. The benefit of using a program must far outweigh the cost/work of using it. Not just a little because momentum (we’ve always done it this way) can be a lot to overcome.

So we talk about it. Adding labels to a GUI project (especially when using Visual Studio with C# or Visual Basic) can be a trivial matter to implement but add a lot to usability. I have been thinking that  maybe I should take some programs and reduce or remove things that help usability or at least understandability to start some conversations going forward. Great more work. Maybe I think to much.

White House Summit on #CSforAll & CS for All Consortium

Yesterday the White House hosted a major summit on Computer Science for All. I wasn’t there myself but was able to watch much of it via live streaming. It was a pretty inspiring event. Ruthe Farmer, Senior Policy Advisor for Tech Inclusion at the White House, was the host and organizer and collected a veritable who’s who of CS education people and organizations for the event. That the CTO of the US, Megan Smith, was the closing keynote is a good indication of official support of the event.

Probably the single biggest announcement, and there were a number of important programs announced, was the creation of the CS for All Consortium.

Computer Science for All is a bold new initiative to empower all US students from kindergarten through high school to learn computer science and be equipped with the computational thinking skills they need to be creators in the digital economy, not just consumers, and to be active citizens in our technology-driven world.

There are a lot of resources at the CS for All Consortium website and it is well worth checking out. You can also follow the CSforAll Consortium on Twitter @CSForAll and if you are on Twitter and interested in this important effort I encourage you to do so.

They’re on Facebook at https://www.facebook.com/csforallconsortium/ and Instagram at https://www.instagram.com/CSforAll/ so there is all that as well.

The Computer Science Teachers Association (of which I am a proud member) is a founding member of the Consortium and is on the steering committee. CSTA is a highlighted member of the Consortium so you can read about the CSTA role in the CS for All Consortium on the website. (You may find a quote from me if you scroll by the more important people quoted BTW.)

Interesting Links 12 September 2016

Is everyone back at school now? After a couple of short weeks school happens all five weekdays this week. I think I’m ready for a full week. Getting back into the full swing of things takes me a while. Looking around school I am not the only one. Hopefully you are all doing fine. Here are a few links to get your week started,.

PiBakery Dramatically Simplifies Setting Up the Raspberry Pi Looks like some useful software for people using the Raspberry Pi.

What's an algorithm? by Harvard’s  David J. Malan   I may use this in class.

Using Makey Makey with TouchDevelop looks fun and easy

This Walmart Worker Built The Company An App In His Spare Time via @cora @buzzfeednews Are we in the golden age of the non-professional developer? Maybe we are.

Microsoft is betting that a more neurodiverse workforce is better for business by Vauhini Vara via @FastCompany About a special program to recruit and retain employees on the Autism spectrum.

Students ask me why people create new programming languages regularly. In this article developers of emerging programming languages shed light on their thinking. 3 New Programming Languages: What Their Creators Say

Of Dice and Men

In a college  I first learned about Stochastic analysis and Monti Carlo Simulations. Whoa! An academic sounding reason to play with random numbers. It was only later that I discovered randomness as applied to cryptography. By then I had long before  been fascinated by random numbers (or at least pseudo random numbers) in computer programs. I still love using them today. They just make programming more interesting.

In my college work in System Analysis (one of my two majors) we used random numbers as part of building simulations. I enjoyed doing them. I keep thinking I should come up with some simple simulations to have my students work though. Perhaps the old ski lift simulation. If I could remember the details. Maybe I am getting old.

Of course games are a regular use for random numbers in student projects. One of the classes I have students create with we talk about programming classes is a Die class. To make it interesting I have to help them think beyond the normal six sided die with six values. I talk about two sided dice or as they soon realize – coins. And of course many sided dice such as those used in role playing games.

A while back my wife got me a set of Binary dice. Six sides but only two values – one or zero of course. The visual seems to help stimulate out of the box in thinking.

If I were teaching AP CS A and/or teaching inheritance the die class might be a fun one to use. Create a coin class or perhaps a dial class from the die class? I need to think about that more. Anyone reading doing something like that they could share?

Of course random numbers have other uses. I have a 20,000 entry database of names and birthdays that I created by randomly picking first and last names from lists I got at the Bureau of the Census (for example Frequently Occurring Surnames from the Census 2000) and then randomly making up months, days and years using random numbers,. That was actually fun to write. Having a dataset that large makes it obvious to students why a computerized system makes sense.

I’m not sure that my students catch my love of such programming projects. Or rather the fact of pseudo random numbers making them work in interesting ways. I do hope that it makes for projects that interest them though.You never know were something will lead. Randomness is everywhere.

Crowdsourcing Tech Terms for Students

Peter Vogel has been creating a list of tech terms for his ICT students for more than 20 years.  He edits and updates the list just before school starts for him in Vancouver BC Canada. .He discards terms no longer in the vernacular or no longer widely used, and tries to bring in as many new terms as he can reasonably fit. He runs a similar but much shorter list for his grade 11 students. It’s a very good list but he is looking for suggestions to make it better.

Here are 4 pages he has so far. Add any interesting terms to bottom of the list (which is presently alphabetized). The snippet below may say 2015-16 but the document shows the correct date range.

Again, if you wish to add a term, do so in the area at the bottom of the Google Doc.

Interesting Links 5 September 2016

It’s Labor Day in the US which means this is the last day of a four day weekend for me. It’s nice to have an extra long weekend this early in the school year. Making the adjustment from summer to back to school takes some work for me.  That doesn’t mean I don’t have links to share though.

Interested in a tool to transition students from Scratch to Java (via Greenfoot), check out this tool : ScratchFoot I don’t use either Java or Scratch much these days so I haven’t tried it but it looks interesting.

ScratchFoot provides a subclass of World and subclass of Actor which make available much of the functionality of Scratch in Greenfoot.
Using ScratchFoot, you should be able to convert many Scratch programs to use Greenfoot. This may be useful for

• overcoming limitations of Scratch. E.g., when the Scratch canvas is just too small for your application, or when Scratch starts running too slowly because you have so many scripts running.
• making the transition from the simple (and wonderful) world of Scratch to the more real world of Java programming.

Federal Aid for Code Schools - is this a good thing?  A lot of people seem to think it is. Mike Zamansky is someone I can always could on to give a contrary view of things for balance.

The Nerdy Teacher: was recommending Kano last week.   Honestly I don't think I "get it." The Kano Computer Kit.is a build it yourself computer kit based around the Raspberry Pi. Your mileage may vary as they say.

I probably need to add this Soccer Bot project to my list of robots for teaching programming. Pi Soccer Bot (Full Build Edition)

Build a football-kickin' robot and challenge your friends on the pitch! Customize it to gain an edge on the competition.

Mark Guzdial shared Cynthia Lee's excellent list of what CS teachers can do for inclusive teaching Are you doing these things?

Rule the arena with a Bluetooth controlled BBC micro:bit buggy The Micro:Bit as the heart of maker projects is something I do “get.”

I say some code for a BBC Micro:Bit  Binary clock at http://makeandshape.com/stuff/ I’m thinking there has to be a way using less code but haven’t had the time to try myself. A binary clock for the Micro:Bit has been on my plan list for a while though. Maybe I need to move it up the priority list? This was done in TouchDevelop BTW.

Scratch Resources from Ireland

A friend recently sent me a link to this site that looks like it will be very helpful for teachers who are using Scratch from MIT. Check it out at scratch.ie

Since 2007 Lero – the Irish Software Engineering Research Centre has been running an Education and Outreach Program to encourage students to discover and learn about computing and software development. We have developed Scratch lesson plans, to teach software development to students. Scratch is a visual programming language that makes it easy to create interactive stories, animations, games, music, and art and share these creations on the web.

Interesting Links 29 August 2016

Classes started at my school last week. Whoa! Getting back in the groove is hard. But I have great students and fun classes so it will be ok. I spent the weekend in New Hampshire’s White Mountains which is why today’s post is late. It was great to relax though. So now some links.

CSTA Releases Revised Standards - Computer Science Teachers Association (CSTA)

Here's how to do Turtle Art in Python! Is everyone moving to Python these days?

Giggletronics: Using MicroPython on the micro:bit Here’s some good information. I need to dig deeper into this stuff.

Feminist Computer Science Education "Helping" women in CS with impostor syndrome is missing the forest for the trees  I’m still making my mind up about this one. Opinions anyone?

Great getting started with TouchDevelop video I’m linking to it for my students. It’s really good and shows a lot in about 5 minutes. 

Computers Are For Girls, Too Nice post by Melinda Gates.

C.P. Snow keeps getting more right: Why everyone needs to learn about algorithms  by Mark @guzdial Alan Kay (yes that Alan Kay) continues the discussion in the comments.

App Challenge! Enter to Win $20,000 for your School

I had an email the other day about the Verizon app challenge. It looks interesting and I may have some students enter this year. The fact that coding IS NOT required opens the door to a lot more students. Anyone else using this with their students?

---

What is the app challenge?

The app challenge, part of Verizon Innovative Learning, is a nationwide contest in which middle and high school students are challenged to develop concepts for mobile apps that solve a problem in their community. It’s a unique, hands-on activity that teaches collaboration, critical thinking, problem solving, and entrepreneurship, as well as STEM (science, technology, engineering, and math) skills and coding. It builds on students’ excitement about technology and aims to equip them with skills they need to succeed in the jobs of the future.

Design real mobile apps and your students could win $20,000 for your school. Absolutely no coding required.
Gather your team of students to put their problem-solving skills to the test and come up with a great app concept that helps meet a need in your school.
The app challenge, part of Verizon Innovative Learning, promotes:
— Teamwork,
— Builds character,
— Teaches critical thinking.
Find Out More

Cutler-Bell Scholarship Deadline November 1 2016

Dave Cutler and Gordon Bell have funded an amazing CS competition for American high school students. Last year’s winners had some truly impressive projects. Do you have a student doing some out of the box thinking and building something impressive? Have them look into entering this event. There is money and recognition in it for them.

---

The ACM/CSTA Cutler-Bell Prize in High School Computing is a prize designed to recognize talented high school students intending to continue their higher education in the areas of computer science or technology. The program seeks to promote and encourage the field of computer science, as well as to empower young and aspiring learners to pursue computing challenges outside of the traditional classroom environment.

The prize is a made available through a $1 million endowment established by David Cutler and Gordon Bell. Dr. Cutler is a software engineer, designer and developer of several operating systems including Windows NT at Microsoft and RSX-11M, VMS and VAXELN at Digital Equipment Corporation. He is Senior Technical Fellow at Microsoft. Dr. Bell is an electrical engineer and an early employee of Digital Equipment Corporation where he led the development of VAX. He is now a researcher emeritus at Microsoft Research.

Up to four winners will be selected annually and each will be awarded a $10,000 prize which will be administered through the financial aid department at the university the student will attend.

Eligible applicants for the award will include graduating high school seniors residing and attending school in the US. Challenges for the award will focus on developing an artifact that engages modern computing technology and computer science. Judges will look for submissions that demonstrate ingenuity, complexity, relevancy, originality, and a desire to further computer science as a discipline.

The application period for the 2016 award is scheduled to open May 1, 2016 and close November 1, 2016. The winners are expected to be announced in January of 2017. 

Any questions? Contact us at awards@csta-hq.org.

The Cutler-Bell Application deadline is November 1!

**Click here to apply for this year's award**

Interesting Links 22 August 2016

I meet my new freshmen students today. I hope they are as excited as I am. Should be a good year with lots of interesting things to try with my students. It starts with an attitude shown by this cartoon. I want to get them DOING things. New things. Innovative things. Projects that are about them!

And now some links.

Wisconsin eyes model academic standards in computer science actually they are looking for feedback. I hope they look at the CSTA Standards and the K12 CS Framework. 

Scratch now has  Educator Accounts That should make some things interesting and even easier for many teachers.

Microsoft announced the new Microsoft Innovative Educators Experts and Showcase Schools Spoiler alert: I was named an MIE Expert for the second year in a row. Great company to be included in. 

School study of computer science key to Irish knowledge economy  via @IrishTimesBiz People are seeing the need for more CS education everywhere th3ese days.

From Computational Thinking to Computational Participation in K-12 Education Really good and thought provoking post by Yasmin Kafai

Students who are interested in creating apps should check out the Congressional App Challenge

Intel's Joule is its most powerful dev kit yet  via @engadget A bit pricy but looks like it might work for some makerspaces.

Supports for blind CS students: Guest blog post from Andreas Stefik /  via Mark @guzdial as a follow up to a post I linked to in last week’s interesting links post.

Interesting Links 15 August 2016

Teachers report on Friday this week for back to school. The College Board was making a big thing about Advanced Placement Computer Science Principles starting for real last week. Are you back yet? Seems like just yesterday we were celebrating spring graduations. I’ve been on social media less than usual or maybe e it’s been quiet as so many people get ready for school. In any case just a few links to share today.

Sheena Vaidyanathan took on the question of What’s the Difference Between Coding and Computational Thinking?  Her illustrations are a bonus

“Technology allows us to teach students where they are.” /  I was interviews for Anthony Salcito’s blog highlighting teache3rs. It came out fairly well though I wish I hadn’t used the term “real computer science” in one reply.

Programming and learning CS when legally blind  by Mark @guzdial a must read if you care about #CSforAll No really you must read it.

Lastly US New Online edition did a piece on Get Experience at Top Tech Companies as a Teenager. I’m quoted but it is still a good article with some good information and links.

Trip Report: Advanced Placement Summer Institute

My school will be offering AP CS Principles in the 2017/2018 school year so it was suggested that the current computer science teachers attend an AP Summer Institute to help us prepare. Sounds like a good idea so Tom (Indelicato my department chair) and I signed up to attend the Institute in St Johnsbury Academy in nearby Vermont.

The APCSP workshop was taught by Jackie Corricelli​ who has been a pilot teacher of the CS Principles course for several years and has had a lot of training on the course. I learned a lot. One of the things that impressed me is that she models what she teaches. The workshop was very participatory and we worked though many of the things she has her students work though in her classes. This is a lot better than a “sit and get” sort of presentation that takes place too often in PD events. I recommend her workshops if you are looking for one for next summer.

I’m taking a lot of ideas home with me. Obviously I feel like I have a much better understanding of the performance tasks that students taking APCSP will have to do. That is probably the main reason I felt I needed more formal training than reading a book. The tasks have given me some ideas for my earlier courses as well. I’ve been making changes to our Explorations in CS course based on these ideas. I’ll also make some changes to how I have students  turn in and document programs in my honors programming and mobile apps courses.  Good ideas are ideas that work in different courses and levels.

Being in school full time is interesting. Living in a dorm, eating in a cafeteria, after school activities. It was sort of like being back in college again. Although the food at St Johnsbury is quite a big step above the cafeteria food I grew up with.  Dorm rooms are dorm rooms and I have stayed in a number of them over the years I have been teaching. The ones at St Johnsbury were pretty nice for dorm rooms. I don’t think HS students mess with their rooms as much as college students do.

They had a lot of adult interest activities in the late afternoons and evenings as well. It all made for a really good experience. Added on was the social time at meals and afternoons when I got to talk with other teachers. That was valuable and helped me work though a number of ideas and concepts. Picking the brains of other teachers is always helpful.

I’m very pleased with what I got from this Summer Institute. I recommend both the instructor and St Johnsbury..

Interesting Links 8 August 2016

Today is back to school for some students. Also for some teachers. I know some teachers who reported to school last week. Whoa! It’s getting close for the rest of us. Many teachers at my school were in last week to pickup new faculty laptops. Some really nice ones with Windows 10 and touch screens. Better (more performance) than my Surface. Though the Surface will still be my travel computer because is is smaller and lighter.

As it is I have started to put together some new resources for teaching various topics this school year. Some of the links below will be used by me. I hope you find some of them interesting and helpful.

Are colleges and universities really teaching courses like the new Advanced Placement Computer Science Principles course? Mark Guzdial has a list of College-level CS Principles Courses

Please take this Internet bandwidth survey to help a teacher. There vis a lot of data that that you could use in your own class BTW.

What are you doing to achieve #CSforAll? The White House wants to know! 

5 Free Cyber Security Courses to check out. A topic growing in importance and attracting more interest from students.

Code.org has four new tools for teaching the Internet, Encryption, pixilation and data compression. They’re pretty cool and I plan to use several of them this year.

Interesting Links 1 August 2016

In parts of the US, teachers start returning to school this week. I'm not one of them but the time is approaching. Fewer than three weeks to go for me. It’s been a crazy busy summer for me. Last week was a week long Advanced Placement Summer Institute for AP CS Principles. A good session and I learned a lot. Trip report coming soon.

In the mean time a bunch of interesting links and some humor (at the bottom of the post) to share with you to start your week.

Doug Peterson seems to always come up with new and interesting ideas for projects. If you like programming assignments involving string manipulation as much as I do you’ll want to check out his post called  A cutie-pie string problem

The Future of Computing Education is beyond CS majors: Report from the Computing Research Association (CRA) Snowbird conference of deans and chairs of computing by Mark Guzdial.

NASA's 10 Coding Rules for Writing Safety Critical Program -   The focus is on C programs of some real complexity but there are some good ideas even for beginners in this post.

Google RISE Awards - annual grant program for informal edu orgs who promote CS for K-12/pre-university age youth
“The RISE program supports and connects not-for-profit organizations around the world to increase equity in CS education with a focus on girls, minorities who are historically underrepresented in the field, and youth from low-income communities.”

For your geeky pleasure - Decimal, Binary, and Hexadecimal Odometers – something fun to show students perhaps. Or maybe an example to ask them to code up? 

College Board Hopes to Broaden Access to CS With AP CSP the largest AP debut- ever!

Coding across the primary curriculum  Great post by Miles Berry by @mberry Miles is a really smart guy. He’s now on the CSTA Board where he brings a lot to the table.

150 Members of Congress from 38 states signed up to participate in the 2016 Congressional App Challenge  Has yours? Check it out as something with potential for your students to get involved with.