Tagged: computer science

Updated GCSE Computing revision pack.

Below is a link to a GCSE Computing revision pack that i have recently updated (and simplified) which focuses on past paper exam questions.

A451 revision booklet [.pptx]  [.PDF]

The booklet is split into theory topics and allows students to:

  • identify gaps in knowledge before attempting questions.
  • define keywords and build subject specific vocabulary.
  • mind map key areas of each topic.
  • attempt past paper questions by topic.

You can read more about my thoughts on revision here.

Feedback welcome!

**Also check out this great resource from @teknoteacher – GCSE Computing revision.

Here’s a video in which he explains the use of the resource – click here.

He is also running a series of free computing webinars for teachers – click here to find out more.

GCSE Computing revision materials.

GCSE Computing revision materials.

Image by @gapingvoid

Image by @gapingvoid

This is a work in progress. This post will be updated regularly over the next few weeks to cover the OCR GCSE Computing syllabus. The resources can be easily adapted if needed. Feedback welcome!

Read more about the approach to revision I’m trialling here.


 

1. Computer Systems

Self-reflection[PDF] [.DOC] | Chunked revision booklet [PDF] [.PPT] | Multiple choice questions [PDF]

2. Hardware

Self-reflection[PDF] [.DOC] | Chunked revision booklet [PDF] [.PPT] | Multiple choice questions [PDF]

3. Software

Self-reflection[PDF] [.DOC] | Chunked revision booklet [PDF] [.PPT] | Multiple choice questions [PDF]

4. Data representation

Self-reflection[PDF] [.DOC] | Chunked revision booklet [PDF] [.PPT] | Multiple choice questions [PDF]

5. Databases

Self-reflection[PDF] [.DOC] | Chunked revision booklet [PDF] [.PPT] | Multiple choice questions [PDF]

6. Networks

Self-reflection[PDF] [.DOC] | Chunked revision booklet [PDF] [.PPT] | Multiple choice questions [PDF]

7. Programming:

Self-reflection[PDF] [.DOC] | Chunked revision booklet [PDF] [.PPT] | Multiple choice questions [PDF]


#neverstoplearning

Increasing bandwidth – Planning a revision session.

Talent isn’t born. It’s made. 

In Daniel Coyle’s book ‘The Talent Code’ he travels the world to seek out groups of very successful people and in an attempt to discover why they are so successful. Through his observations of multiple different groups from musicians to football players he noticed one recurring trend – deep practice. In fact he has created an equation that summarises the elements needed to make progress and succeed at something. It looks like this…

'The Talent Code' by Daniel Coyle.

‘The Talent Code’ by Daniel Coyle.

Ignition or primal cues relates to the motivation a person has to be successful in the first place. As a teacher I believe it’s part of my job to talk to students about what motivates them to succeed. Some students are able to easily articulate this. whereas some will need some help finding the reason why they need to be successful. Either way I need to support the students I teach in understanding their ignition to succeed.

Continual deep practice is about increasing the amount of myelin in the brain*.  Have a look at this great interactive guide to Myelin on Daniel Coyle’s website. Myelin is…

Myelin is a lipid and protein sheath-like material that forms an insulating cover that surrounds and protects nerve fibres. 

Structure of a typical neuron from http://en.wikipedia.org/wiki/Myelin

Structure of a typical neuron from http://en.wikipedia.org/wiki/Myelin

The general idea is that the more myelin you have insulating your nerve fibres, the faster impulses (or information) can travel between nerve cells.  Some scientists believe that myelin can be increased with regular deliberate practice. It’s similar to bandwidth in the speed of an internet connection. The more bandwidth you have the faster the transfer of data. The more practice you put in, the more the myelin wraps around the nerve fibre increasing the bandwidth (the diagram below shows this in a bit more detail). It’s worth noting that this works both ways and needs to be maintained with regular practice.

Cross section of a myelinated axon taken from http://en.wikipedia.org/wiki/Myelin

Cross section of a myelinated axon taken from http://en.wikipedia.org/wiki/Myelin

 

Daniel Coyle uses the example of Brazilian soccer players to explain deep practice in action. From an early age they play a game called Futsal and they continue to play it into their teenage years. Futsal is played on smaller court with a smaller ball which means that players will touch the ball more often than playing 11 a side on a full size pitch. This is deep practice. It’s quality controlled by a master coach (someone with expert knowledge of the game / subject) who intervenes with striking impact to ensure learning is meaningful. The video below examines more examples of where deep practice has produced successful outcomes.

How does this apply to revision?

If we want students to be successful in exams then they need to practice – sounds simple enough, but is not entirely true. If we want students to be successful they have to fine tune their practice so that it is deep, deliberate and regular in order to build up a thicker insulation of myelin. What follows are few strategies that I am currently trialling to achieve this.

1) Regular self assessment with input from the teacher.

It’s important to let students assess their own strengths and weaknesses when it comes to a topic to revise. Teachers are the master coaches described in ‘The Talent Code.’ We have to know our students well and track their learning and use this information to intervene with self assessments so that students know what they are actually good at and areas that they need to improve. The key to good revision (I believe) is to focus more time on the weaker areas (being deliberate) rather than spending lots of time revisiting knowledge/skills that a student is already competent in. Below is an example of a self-assessment I have used with students. The black ‘X’ represents the student response. The green Y’s represent my response based upon prior testing and my knowledge of the students competencies through questioning and classwork. If I have agreed with the students response I have not added an additional symbol.

Self-assessment grid example - used prior to starting revision for a particular topic.

Self-assessment grid example – used prior to starting revision for a particular topic.

The grid provides a clarity. Students get validation for what they think they already know or an opportunity to discuss area for improvements. It also helps students to focus in on the weaker areas and thus provides a starting point for revision.

2) Chunking information.

Once students have self assessed their strengths and weaknesses and they have been agreed, they can then begin revising required knowledge. In order to not overload the students working memory I have created a resource that chunks the information down in smaller sub-topics (see the list on the self reflection diagram above). Each sub topic has a series of questions that students answer in an open book environment. Example answers to these sections are released to students once they have attempted to answer them. They also have access to past paper exam questions and answers. Students are free to work through this revision pack using the self assessment as a rudder to guide them towards topics that will require more attention.

Example revision pack split into sub topics with past paper exam questions.

Example revision pack split into sub topics with past paper exam questions.

3) Regular rigorous multiple choice tests.

The ‘chunked’ revision materials are sync with a multiple choice test. I have created the tests using Joe Kirby’s brilliant posts on designing rigorous multiple choice tests (Post 1 | Post 2). I’ve attempted to increase rigor by adding more incorrect answers that are based on common student misconceptions.

Example question from a multiple choice test for GCSE Computing.

Example question from a multiple choice test for GCSE Computing.

The tests can be taken multiple times and using a platform like Edmodo means the tests are also tracked and scored without the teacher lifting a finger. Edmodo also allows students to go back through the test and see where they dropped marks.

An example of automatic feedback generated by Edmodo coupled with a comment from the teacher.

An example of automatic feedback generated by Edmodo coupled with a comment from the teacher.

 

A key element here is frequency and over a 6 week revision period it’s important to space the timing of these multiple choice tests to aid retention. As Joe points out in his most recent post on curriculum design,

Repeated retrieval improves long term retention: frequent quizzing prevents forgetting.

Read more about this here at Joe’s blog.

4) Regular ‘Walking – Talking’ mock exams.

One new strategy that has been trialled at my school this year has been ‘walking-talking’ mocks in all subjects. For those not familiar here’s how they work. The students revise for a mock as normal. When the mock exam takes place the teacher walks them through the first question and then gives students an appropriate amount of time (depending on the number of marks available usually) to complete the question and then get some instant feedback on how well they did. It’s hard to judge the real impact of doing this exercise but it certainly helps students feel more comfortable in exam conditions. I know I have been guilty in the past of running a mock exam in ‘exam conditions’, students tend to score poorly on it, get feedback but didn’t get an opportunity to re-draft answers (my fault) and the whole scenario was demotivating and not very productive. A walking-talking mock provide students to feel success in an exam environment. This new found motivation can then be used to drive revision sessions. As the year goes the strategy is to get students to sit 3-4 mock exams and by the end of the process provide them with less and less support as their confidence grows.


This post is by no means a ‘you should run revision sessions like this’ post. It’s a reflection on some of the ideas that have inspired my thoughts around how to do revision better. It is very much a work in progress and feedback is very much welcome!

I often tell my students to not be upset with the results they didn’t get from the work they didn’t do. I feel the same and care deeply about their results. When my students walk into the their exam I want to make sure I’ve done everything within my power to ensure they succeed.

Image via @gapingvoid - http://gapingvoid.com/

Image via @gapingvoid – http://gapingvoid.com/

Further reading:

Myelin – by Daniel Coyle

How to grow a super athlete – by Dainel Coyle

The myelin in all of us – by David Shenk

Why use multiple choice tests – by Joe Kirby

How to design multiple-choice questions – by Joe Kirby

Research on multiple-choice questions – by Daisy Christodoulou

Walking, talking mocks: are mock exams the way forward? – by Martin Jones

Hardwiring learning and effort = success – by Domini Choudhury

*I am not a scientist. For more information on myelin please see this interactive guide or even better still, read Daniel Coyle’s book ‘The Talent Code.

#neverstoplearning

Extended Guardian post: Teaching Computing for the first time

Below is a piece written for the Guardian Teacher Network , before being edited down to size. I’d really like to hear from other teachers who have recently started teaching computing or are planning to in the near future and share experiences (please leave a comment below).

A reflection on teaching computing for the first time.
It was around this time last year I began to fret a little. The novelty of the summer holidays had started to wear off and ‘the fear’ began to settle in. After a couple of years of teaching ICT, I was getting a little bored of churning out coursework and was looking for a new challenge that would really make my students think. Don’t get me wrong, ICT has its place but I felt like students were missing out by not getting a mix of computer science(CS) and ICT. So I made a bold decision and came up with a plan to start delivering Computing from September (2012). My decision to do this was made somewhat easier a few months before, after listening to Dr Tom Crick (@drtomcrick) speak passionately about the merits of a curriculum that combined CS, IT and Digital Literacy.

Starting point
Having previously studied Internet Technology at university, taught ICT for almost 4 years and being a bit of a geek, I felt quite secure in my subject knowledge for Computing (networks, the Internet, data representation, hardware, software, e.t.c.) but was not feeling confident with my my programming skills. The first thing thing I did was sign up to code academy (http://www.codecademy.com) and began working through the Python exercises. I decided to choose Python as my language of choice because it is quite close to written English and there were plenty of support materials online.

After a few weeks of spending 30-45 minutes a day working through the Python tutorials (little and often) I decided to attempt one of the GCSE programming projects and immediately became stuck! Online tutorial sites are great for learning the syntax of a programming language but don’t necessarily teach you to solve problems. This is where computational thinking comes in. After a call for help on Twitter I quickly found myself being tutored through the problem solving side of things via Skype and email by two amazing computer scientists (@codeboom and @colinthemathmo). Problem solving is the essence of computer science, using a computer as a tool to solve real world problems. The only to get good at problem solving is practice.
In terms of planning for the new school year (2012/2013) I had decided to shrink the change to allow myself time to develop my programming skills further. I incorporated some new units at KS3 looking at hardware and how computers operate and process instructions, computational thinking and an introduction to programming in Python. I also sought to explicitly raise awareness in lessons and across the school of the differences between computer science and ICT, with the latter having a little bit of a negative stigma attached to it. At KS4 I offered OCR GCSE Computing and managed to get 14 students signed up. I roughly planned out the year against the spec and used lots of the many outstanding resources already available on the Computing at Schools website.

Teaching Computing
Returning to school in September with the annual ‘fear’ instilled after 6 weeks off I was actually quite excited to get started. Teaching the problem solving / programming side of things provided a really interesting contrast to the ICT I had taught previously. Lower ability students were feeling success quicker and gaining in confidence by solving relatively simple problems whereas the higher ability students had come across something that they weren’t getting right first time. The problem solving lessons provided a great platform for differentiation by task and it was amazing to see the students take a step back and really think about the problem and plan out a solution. When I got the level of challenge just right, sessions had ,a really nice flow to them and a 100 minutes flew by. There were plenty of times when students got stuck and I didn’t know the answer so I advised them to do what I did when I didn’t know how to do something – use the Internet. Students started becoming quite proficient at searching blogs and forums to seek out the bit of code that would help them.

In hindsight I think I focused a little to much on students learning the syntax of particular language rather than embedding wider programming concepts, something I’m going to change in my approach for the upcoming school year. I’m also going to give students more open ended problems to solve rather than step by step guides. I found that students really responded well to challenge of solving problems rather than just following step by step guides. Obviously they need a starting point, and tutorial sites / syntax guides will give students that. What I will do differently from September is start getting students thinking about problem solving sooner and try and get them to see programming as a tool for solving problems rather than an exercise that they must get right at all costs.

Computing club
Computing club was a real success this year and has gone from strength to strength. I initially set it up as an informal laboratory for me to try out some ideas for lessons on a group of extremely keen students wanting to find out more about Computing and specifically programming. If you haven’t already set one up – do so as soon as you get back to school! It was through this club that culture quick grew of students sharing things that they had been working on at home, outside of lessons. One student had been making apps online and had already tried out a number of sites and was able to give me a comprehensive review of each which helped me choose one to use in class. Andover student had been making text based adventure games in notepad++ and running them in a command prompt – an excellent idea for a KS3 project! In the final term I managed to secure some funding to buy a class set of Raspberry Pi’s, and who better to test them out but Computing club! It’s a great way to get confidence with new technologies before introducing them into a formal lesson.

Department CPD
This is potentially the trickiest obstacle to change. Thankfully I work in a great department with teachers willing to learn new things (our mission statement is ‘never stop learning’). I provided a number of after school sessions and helped staff with planning lessons whilst always returning to our moral purpose of WHY we were implenting change – trying to provide a more enriching and challenging experience for the students we teach. We reviewed things every few weeks in department meetings to find out what worked well and what needed tweaking for next year. It has been hard work but extremely rewarding to see both staff and students develop.

Final thoughts
I’m really glad I decided to ‘dive in at the deep end’ with Computing. I believe the students have benefitted from much more challenging and engaging lessons which the subject matter of computing tends to lends itself to. With computer science all around us it’s easy to make links to ‘real world’ scenarios that students can relate to. An example of this was a starter I created for a lesson on the Internet where students had to use Google street view to go inside of a data center and locate a stormtrooper (yes a stormtrooper!) that Google had placed in one of their server rooms.

I will continue to develop my knowledge base and schemes of work to ensure students at KS3 get a balanced mix of computer science, IT and digital literacy to enable them to manipulate the digital world in which they live. Above all I want students to be challenged in lessons and enjoy them. I think Computing provides us with a great platform to achieve this. As Dr Sue Black (a senior research associate in computer science at the University College London) said in a recent tweet to students considering Computing as a GCSE, “Knowledge of computer science gives you access to and control over your future. Everything we do is depending more and more on technology and understanding computer science gives you the key to unlock its potential.”

#neverstoplearning

Guardian Teacher Network articles

Here’s a link to my first two articles for the Guardian Teacher Network about teaching Computing for the first time.

Teaching computing for the first time – learning to code and getting started.

The best websites for computing resources and lessons

#NeverStopLearning

 

Tips for teaching Computing for the first time (list of resources included)

Influenced by a strong moral purpose to give students exciting, challenging lessons and a balance of computer science, IT & digital literacy, this time last year I started planning to deliver Computing. The first thing my lizard brain (see Seth Godin’s post) shouted out was “Ahhhhh coding, coding, codinggggg!!!” At this point it would have been quite easy to not make the change, but returning to my moral purpose of improving the experience for the students I teach, I decided to carry on. Over the last year I have learnt a lot (blog post reflecting on my first year teaching Computing is coming soon!) about Computing and engagement / challenge for students is up in lessons.

If you are reading this post there is a good chance you are either considering introducing, in the midst of planning or have already been teaching Computing. Below are some things I’ve learnt (loosely resemble ‘top tips’ – sounds a bit cheesy and I’m by no means an expert!) over the last year that I thought I’d share.

1. Practice makes better. Don’t put off learning to program, start now, right now after reading this. Go to code academy (http://www.codecademy.com) or Khan Academy (http://www.khanacademy.org/cs) or one of the other many online tutorial sites.

2. Do ‘little and often’ to ensure you remember what you learnt previously.

3. Accept failure as part of the journey to success. It’s unlikely you’ll get everything right first time, but be courageous and give it a go. Learn from your mistakes, that’s what we keep telling the students isn’t it?!

4. Start a Computing Club and use it as a laboratory to road test new technologies, activities , e.t.c. before trying them in class.

5. Join Computing at School (http://community.computingatschool.org.uk/door). CAS’s online community hosts 100’s of free resources for teaching Computing. They also have a number of ‘Master Teachers’ who are hand to answer questions and offer support, forum’s, CPD events and regular Hub meetings around the country.

6. Use Twitter to extend your PLN. I received help from a number of people on twitter who checked my program’s and tutored me through some of the GCSE level programming problems.

7. Make use of student guru’s. If you have students in your class that are already quite competent programmers, use them. Ask them to explain who they solved a problem and peer teach others.

8. Be honest. If you don’t know they answer to a question, be honest and say so. Turn it into an activity to find the answer. Take part in the learning journey with your students.

9. Shrink the change. Try focusing on one thing at a time. Introduce a couple of Computing modules at KS3 first and get use to teaching programming to solve problems. Then think about introducing a GCSE option the following September.

10. Accept that students have more time to spend becoming an expert then you do!

11. Continue being remarkable.

Resources:

You can find a list of resources I have built up over the last year HERE. I will be adding to this list regularly and if you would like to share an online resource (video, website, blog, e.t.c.) please leave a comment on the Google Doc and I’ll add it in.

If you have found this post useful please pass it on, re-tweet, leave a comment below…

#neverstoplearning

Things to try in lessons in 2013…

There is simply not enough time in the universe to try out every new resource and idea that appears in your Twitter stream or you encounter at a Teach Meet. But that doesn’t mean you shouldn’t try out a few!

Below are a few ideas that I have committed myself to trying next term in my ICT / Computing lessons (although they are not subject specific).

1. Switching to a paperless marking system using Google Drive.

At the Clevedon Teach Meet earlier in the year Mat Pullen (a PE teacher from Bristol – @Mat6543) gave a micro presentation on how his department were using iPads and Google Drive to collect coursework from students and give them feedback online. Being an IT teacher I sat there feeling a little ashamed of myself that I was still using a paper based system (“because that is how it’s always been done…”).

Click here for a video of Mat’s presentation from Teach Meet Clevedon.

New Years resolution 1: I intend to switch to a paperless marking system so that I can mark and give feedback on work anywhere whilst reducing printing costs. I intend to trial this with one class to start with and hopefully by the summer have a system in place for most of my classes. By September 2013 (providing all goes well) I intend to use a paperless system as standard practice.

2. Try out Learning Place Mats as a way of showing progress in lessons.

In the last month or so I came across Dan Aldred’s (@dan_aldred) site which contains lots of great resources for ICT/Computing lessons and lots of general ideas and resources relating to teaching and learning. One idea that Dan recently launched was the ‘Learning Place Mat.’ The general idea is that students are given a place mat which they fill out at various points during a lesson to track progress towards a given destination. There is a bit of work required before the lesson by the teacher top set the place mat up with learning objectives and key questions. I think (could be wrong!) that the idea for the place mat stemmed from the ‘5 minute lesson plan.’

Click here to visit Dan Aldred’s site about Learning Place Mats.

New Years resolution 2: I intend to try the Learning Place Mat with KS3 classes as a means for showing progress in lessons. I will report back on how this turned out by the end of term three here on my blog. If this is successful then I intend to share this idea with all the staff at my school during a CPD session.

3. Getting the experts in!

Another great presentation from the Clevedon Teach Meet came from Gavin Smart (a Science Teacher from Weston-super-Mare – @gavinsmart). Gavin had a bit of a dilemma when thinking about how he could make a lesson on acid rain more interesting. His idea was to Skype his Grandad who was an expert on the subject of acid rain – what a brilliant idea! Towards the end of last term I was doing a lesson on the infrastructure of the Internet with a year 9 class and we were talking about networks and Fibre Optic cable. My brother in law is a network engineer and my dad has a PHd in Physics so this seems like the perfect opportunity to get the experts in!

Click here for a video of Gavin’s presentation from Teach Meet Clevedon.

New Years resolution 3: Over the Xmas break I intend to create a video of my dad and brother in law answering student questions about the Internet so that I can use in lessons in the future.

Have a great christmas, enjoy the break and take time to recharge the batteries. Let’s take a minute to remember why we’re teachers…