The National Centre for Excellence in the Teaching of Mathematics (NCETM) have published a series of videos, powerpoints and supplementary material to demonstrate the progression of mathematics teaching and learning at primary school. There are 60 short videos, filmed during 2012-2013, which demonstrate how to teach mathematics at primary school.
Here's an introductory video about the new primary curriculum.
The strands covered are as follows:
Number and Place Value
Division ( free registration required)
Fractions ( free registration required)
Algebra ( free registration required)
Multiplicative Reasoning ( free registration required)
Most of the sections have an informative powerpoint guide about each of the topics and the YouTube channel for the videos is available here