I have written posts before about computing and as always am trying to reduce the anxiety that it brings to some teachers by sharing resources that are simple to use. The crowd sourced computing document is a useful resource, though I am aware that it may feel a little overwhelming to some teachers who do not have expertise in ICT.
Espresso have cleverly made their coding resources free until October 2014 - enough time to let you have a good play with them! What I found useful was that they work on an ipad too, which will really complement our ipad computing resources.
Here is what I have learned so far. The initial page is clearly set out in year groups, starting at year 1 (children in EYFS can easily access these resources, but as the computing curriculum starts in ks1, that is where it starts.) There are handy tutorials for some of the activities and clear instructions on each screen. Lesson plans are provided for those who have paid the subscription though some samples are provided. Likewise there are quick start guides.
Although I haven't played with them all, it seems like there is clear progression through the activities. As with many activities, children may progress past their year group quickly - I would certainly expect children who have been computing regularly using existing resources to find this quite simple. That said, I had to think about the year 6 activities and as someone who jumps right in without reading instructions, I found I didn't know what to do, so had to reverse up a bit. This is what you see if you click on unit 6d
and if you press start, you go straight to the activity. In order to access the tutorial, you press the link where it says Step 1: Walk the dog. Although I believe it is essential that you have listened to the tutorials and had a play yourself, you have the safety net of somebody else talking the children through the activity. You could do that as a whole class thing, or why not give the children headphones and their independence?
This is what Espresso say about their resource:
Update: I have just found a useful blog post here by Aled Williams about Espresso computing.