The arrows on the card show correct formation of the letters, it then leads onto to cursive script or running writing. So the letter 'y' for instance has a correct way to start and finish so they can easily move on to running writing in Grade 3 and join the letters.

My DS2 has seen an OT to help with his handwriting as he was struggling. I wanted him to see her in the early years so as to help him when he goes onto Grade 3 and they are expected to move onto to cursive script.
In Australia, kids get Pens Licenses. This is when they can correctly and continually write in cursive script.

I say Grade 3 for running writing as this is when most Victorian Schools move onto running writing after the kids spending their first years correctly forming the letters.

As for resources, I have a couple of writing books that I have purchased online, they are called Victorian Targeting Handwriting - Student Book. These are the Victorian Modern Cursive handbooks for students.

Hope that helps.