In the Farm tutorial, the practice is to assemble an object: fence. Here is the video tutorial showing how to make it.
The tutorial can be found here: http://www.slideshare.net/Lasykids/lasykids-educational-farm
You are welcome to share your though with us.
More examples can be found in Lasykids educational booklet and DVD. For more information, please visit http://www.bp-toys.com/