Hi so sorry I didn't explain more earlier.
A blend is a consonant cluster, like "bl", "cr", "fl", "sk", and "tw". Both letter sounds are pronounced.
A digraph is two consonants which together make a new sound different from the two consonants that make it up. "ch", "sh", "ph"
Here is a website I just pulled up with a lot of examples and it looks like they have worksheets we can print without having to pay their membership fee
http://www.enchantedlearning.com/consonantblends/I also found an app the other day called phonics genius by alligator apps. They also had apps for sight words and fry words all 3 were free.
BrillKids also has a phonic flip chart that my son carriers around everywhere. We got it when we upgraded to the new little reader deluxe package.