Apps Computer Science

Total Tables and Turtle Tables – Rectifying Shabby Mental Arithmetic Worldwide via a User Centred Design Approach

totalTablesAppIcon1024-1024            turtleTablesAppIcon1024-1024

Today marks the end of excuses for shabby mental arithmetic Worldwide. No more excuses (if you have an iOS device) not to know of the top of your head what 12×9 is. Today, Alastair Cooke and I are launching twin Apps Total Tables and Turtle Tables (use these links to Download, or search the names in the App Store), a pair of Mental Arithmetic games, much acclaimed by Maths Academics:

As an academic myself, I constantly see students entering all ranges of degree with very poor Mental Arithmetic Skills. Total Tables is a very encouraging step forward in terms of making it faster, easier and more entertaining for both students and non-academic folk to get up to scratch on both their Twelve Times Tables and their technique for non-trivial Multiplication. Great app all round – I prefer the Turtle version myself! – Ashley, Maths Academic


Sitting on the train back to University at the beginning of January, I decided to spend the time getting my brain back into gear for more complex mathematics, so I went on the App Store in search of some mental arithmetic puzzles. Alas, the quality of what was there was abysmal! Some games asked the same questions over and over again, whilst others thought the easy-to-use, beautiful, familiar keyboard built into iOS wasn’t good enough for their App and so came up with their own version with smaller touch targets and in one case reverse ordering of the buttons. That evening, I gave Alastair a call and we discussed the possibility of creating a simple, easy to use, and most importantly, fun, app for people to practise their mental arithmetic on (initially, their times tables).

Total Tables and Turtle Tables

Total Tables does just this. With a Standard Mode, featuring games of 10 randomly generated questions up to 12×12, players can race anyone around the world for the crown of ‘Fastest Time Table Guru’, and with the Difficult Mode, players can practise their mental long multiplication technique with 10 questions that get progressively harder up until 100×100. Total Tables is designed to be highly educational, great for the brain, fantastic fun to play and extremely competitive.

Turtle Tables is our version for Kids. Want your Son or Daughter to get ahead with their times tables at School, or want to teach them long multiplication in advance? Download Turtle Tables, and they can have the same experience as with Total, with the addition of some wonderful, playful, animated sea creatures.

c               a

Design and Future

Determining what Total Tables should be was incredibly difficult.  How many levels of difficulty should we have? How should we support both children and adults? How could we encourage competitiveness, whilst focussing laser-like on the goal of education? Steve Jobs said that “Innovation is saying no to 1,000 things”. We may only have said no to a few hundred things, but to say no to just one more thing would have been to change the essence and ideal of Total Tables. We truly believe that there is not a single detail in Total Tables that doesn’t need to be there, not a single detail that draws your attention away from the content, and that every detail we included enhances the sense of connection between the user and the questions.

After months of evenings work and a lot of going back to notes I took during my Human Computer Interaction course, we think Total Tables encompasses everything necessary and no more, for a great experience whilst learning and practising your times tables. We hope you enjoy using it, and we look forward to creating future versions testing other types of mental arithmetic based on our current design.

Both Total Tables and Turtle Tables can be downloaded from the App Store by either searching their names or by using these links: Total Tables and Turtle Tables.

b               d

A complete set of marketing images can be downloaded here. For communications, please contact [email protected].

Computer Science Google Glass Google Internship York University CS Student Blogs

My Last Few Weeks at Google

Note: This was actually written in October, but it took a while for me to get around to editing and publishing it.

So, my internship is over (though you’d never believe it from the small number of posts I have written).  Various parts of this were written at different points over the last few weeks.

Project Really Getting Underway

As you know, Noogler training took up a large proportion of the first two weeks.  Once that was out of the way, I was able to start looking at my project.  It quickly became apparent that I didn’t know enough to start work on the project immediately – I needed to learn more C++ and how to use some specific Google technologies.  Of course, this wasn’t a problem, since a large part of the STEP (Summer Trainee Engineering Program) is about learning, so I spent 3 weeks increasing my C++ knowledge from Objective-C and learning the technologies.

By the second week in August, I was working directly on my project.  It felt like I was making slow progress, and the code was some of the most complicated I have worked with, but I got to a good point by the end of my internship.

Preparing for Interview

A major part of the last 3 weeks of my time at Google was preparing for my interview.  STEP Interns have go through (and pass) a somewhat reduced re-recruitment process to be selected for another Internship (this time a full internship).  I got the interview notification two weeks before the interview, which brought an end to the weekends spent hiking (below).  What did surprise me was how the interview revision guide provided by my recruiter was an almost 1:1 matching of the ‘Theory and Practise of Programming’ (TPOP) module from my course the year before.  It was certainly a surprising jump to go back to the fundamentals after working on stuff that was so far away from them for the whole summer, but it didn’t take long to get back to memorising pseudocode for some algorithms like Merge sort.  I mostly used, but also made sure I could write basic algorithms for what was on the preparation guide.


One of the great things about working at Google was the T-shirts.  Sure, it wasn’t like it apparently used to be with the ‘help yourself closet’, but there were still lots free ones, and discounts to buy your own.  I think by the end I had about 25 pieces of Google clothing, which I’ll enjoy wearing around my CS department.



As previously mentioned, the mentality at Google is really fun.  Whilst I was there, there were two team off-sites – the first was for the YouTube Analytics team to go Zip Wiring in Bern, which was fantastic fun.  It was fairly close to the start of our internships, so gave us Interns a chance to get to know each other a bit better ahead of working quite closely together for the coming weeks (since the three of us went around together on the zip lines and bridges).  It was certainly a lot of fun, and a new experience for me.

The second off-site was a little more ‘Google-Scale’.  All of YouTube in Europe got on a coach to go to the village of Alpbach in Austria for a two day trip, including a murder mystery and mini-hike around the mountains.  The murder mystery was incredibly well organised – a large amount of the village was taking part and the plot twisted and turned, going deeply into the community (visits to the local estate agent, a guy in a tractor, the local vicar and the hairdresser were necessary).  The hike in the morning was incredible – it was really interesting to notice the little differences between the Swiss mountain villages and the Austrian ones.  By coincidence I was also walking with some very experienced managers from the Zurich office and got the opportunity to chat and learn from them.

Google Glass

I also had the opportunity to try Google Glass upon our return from Alpbach, which was really awesome.  This has spawned a few ideas for Glassware that I’d like to build over my next year at University to help people with disabilities – there may be a post to follow about this.  Update: first post on this here.  A post with more details about the Glassware I decided to develop will be following soon.

Me with Glass
Me with Glass

Zermatt and Liechtenstein

Whilst in Switzerland working with my friend on, I had the fantastic opportunity to hike in the mountains every weekend – a really nice change from University, where there is stuff to do in the weekends (although I’m not saying I didn’t make the odd office visit at a weekend).  There were three trips that really stood out – a trip to Vals to visit the famous Therme (after hiking there from the Dam), a trip to Liechtenstein to hike Rappenstein and a trip to Zermatt to hike around the Matterhorn for two days.  A small selection of photos included below.

Click on a photo to view larger

Final Days

The final few days were quite a rush.  A piece of code I had been working on for several weeks was still not quite finished and it needed documenting.  As well as sorting out my de-registration from the city of Zurich, I also wanted to spend some time in the last days of my internship reading and learning as much as possible from Google’s internal and very high quality teaching resources.

So, three questions remain.

Is it like the film?  Not really – we had a showing of the film – a cinema full of Googlers made it quite funny.  Some parts of the film are surprisingly accurate, whilst others couldn’t be further away (Interns, for example, do not compete with each other for jobs).

What do I feel I got out of everything?  Where do I start?  Both Engineering and Meta-skill wise, I learned a lot.  From how to use various Google technologies (both external and internal ones) to how they work, and from how a project is started to how it comes to fruition.  I also learnt a lot about how projects are developed in teams and about large scale development, as well as just how much fun work can be, and how true ‘work hard, play hard’ is.

I also learned a lot about myself – after arriving and realising the wealth of activities and opportunities, I made a deal with myself that I would say ‘Yes’ to every opportunity that presented itself to me.  I couldn’t be more glad that I did that – it meant I forced myself into things I would never have done before like, from a ‘Via ferrata’, to some all-day single-peak hikes, to hiking around the Matterhorn.

Doing the Via Ferrata in Zermatt
Doing the Via Ferrata in Zermatt

Would I do it again?  Definitely.  Without question.  For the sense of satisfaction and achievement I got from writing code at Google and for the amazing working environment.

Computer Science Google Internship Google Scholarship York University CS Student Blogs

What Happened to Regular Blogging…? Well, Life Got Too Good!

Note: This was actually written in August, but it took a while for me to get around to editing and publishing it.  My next post will be published in the next few days.

In my first blog post from Zurich I said I was planning on blogging throughout the training and regularly whilst here.  Well, that kind of broke down – life just got incredibly, fantastically full.  So, here goes – two weeks in one blog post – two weeks of transitioning from Student, to, well this:

Shows me in a Noogler Hat at the bottom of the Zurich Office Slide.
Me – The Noogler – and yes, that’s a Noogler hat I am wearing!

As you will remember, during my first few days I was taking part in the EMEA Scholarship Retreat in Zurich as well as starting my internship.  So, on the Sunday night I headed down to the hotel for the reception and to meet all the other scholars – a bunch of incredible people who had travelled a long way to be at the event.  Whilst I was not in Noogler training I had a great time chatting to all the other scholars and finalists.

EMEA Scholars form a "G" shape.
EMEA Scholars form a “G” shape.

As anyone who has watched ‘The Internship’ will know, when you start at Google you are a Noogler (short for New Googler – I’m sure it could get more complex in Zurich since we are also Zooglers).  So, having been at Google for 2 weeks I am just starting to loose my Noogler status (i.e. there are newer Nooglers in the office), which is a shame since it’s kind of a get-out-of-jail free card for doing silly things in the office.

Now, here, I’d love to be able to give you a full account of the last two weeks.  But (you knew there’d be a but right?), as you might guess almost all the information is confidential.  So, here follows an account of the non-confidential bits (which basically means the full Noogler experience minus anything technical).

Week 1 – Monday.  I arrived at the office a few minutes early, registered and then we got taken up to the training rooms to drop bags, before having breakfast together.  The experience of meeting everyone was pretty odd – because we had all been talking on Google Plus for months before hand, it was like meeting someone for the first time whilst already knowing something about them or whilst having exchanged a few emails previously.

The day was basically full of training sessions – Life at Google, how Google worked, administration, and not forgetting collecting laptops.  I got the opportunity to have lunch with my hosts as well which was awesome – the first time I started to get an idea of what I would be working on.  The food was incredible as well.

After the first week, the active training gradually got less and less, with more time spent at my desk learning the stuff I would need for my project.

Normally at Google there is a ‘TGIF’ (Thank God It’s Friday) meeting at the end of the week (see below).  However, at the end of the first week the Zurich office was throwing their annual Summer Salsa Party!  It was pretty awesome – sunny weather, beautiful venue and fantastic food.  They gave us wristbands for the event that said Google, so I now have both Apple and Google wristbands on my wrist.  Who is the third company going to be?

Google + WWDC Wristbands
Google + WWDC Wristbands – who will be third?

After the summer party and throughout that weekend it was Züri Fäscht – an event that only happens every three years.  Straight after the Summer Party we got down to the lake to join around 1 million people watching a colossal 20+ minute firework display.  That was repeated on Saturday, and the weekend was filled with the festival taking up pretty much all of the streets around the lake.

In the second week there were only a few active sessions.  Having just about become competent in the internal Google system, I spent most of the week learning about the project I would be working on and learning the tools that I would use.  I spent most of this time at my desk working on examples my host gave me.  In some ways I think I preferred this to the earlier training as we were starting to get more freedom with our time.  At Google, nobody minds if you turn up at 10am and leave later in the evening or if you take half an hour out to play ping-pong (or a nap in the water lounge (below) or even a massage).  Although it makes for a really relaxed style workplace, a lot of work gets done because Googlers are selected partly on their desire to drive projects forwards and see results.

Water Lounge, Google Zurich. That's a bathtub in the foreground full of foam cubes.
Water Lounge, Google Zurich. That’s a bathtub in the foreground full of foam cubes.

Of course, one thing Google is famous for is the both free, and delicious, food.  We get three meals a day: Breakfast, where there’s the usual cooked food, pastries, fresh orange juice (you juice it yourself), smoothie (again, select the fruits you want to drink, put them in a machine and Voila!) and fresh fruits; Lunch, where there is a very wide selection, ranging from the main restaurant, serving a wide variety of traditional foods; fork() – which serves Sushi; and Big Bang, serving fresh Pasta, Pizza or other Italian food.  Dinner is pretty similar to Lunch, minus fork() and Big Bang.  Sometimes there’s BBQ’s on offer as well.

Sushi From fork()
Sushi From fork()

Another great thing about Google is the community – the people are great – you can just sit down next to a new person and ask what they are working on – the conversation flows so easily that eventually you learn only to do this if you have a lot of spare time though because most people can really talk.  Throughout this week, a group of us Nooglers have spent a lot of time by the lakeside in the evenings having a BBQ (with a small group of us venturing into the water for a swim).  Conversation is such a great thing at Google, since everybody’s interests/ideals are in some ways linked / have some similarity, and yet everybody’s cultures are so different – you end up learning all about the culture in Israel, Russia, Romania, ….. the list just goes on.

Finally, TGIF.  If anything sums up the social part of working at Google well, it’s TGIF.  What is it?  TGIF stands for ‘Thank God It’s Friday’, and in Mountain View is where ideas are shared and “Googlers ask questions directly to Larry, Sergey and other execs about any number of company issues” (Google Culture).  In Zurich, they use it to introduce the Nooglers to the Googlers – at 5 p.m. the Heidi Song is played to call everybody down to Milliways for beer and chatting.  After 20 minutes, we were called up and told we would be introduced as we rocketed down the slide and maybe quizzed on the Noogler fact slide we had prepared earlier.  I was one of the first down, and just escaped been quizzed on my Fun Fact.  As more people came down, the guys running the show did a great job of keeping the event fun – if someone said they could dance or sing, there just had to be a demo.