Like GoMath but don't like their digital materials? I made my own to help my kids stay engaged. Each Notebook file page comes with a learning target that is easily changed to meet your exact wording. A formative assessment is also included at the end.
Don't use Go Math? These are still great for you as they are driven by the standard.
This product covers changing mixed numbers into improper fractions and improper fractions into mixed numbers.
Check out my freebie to see if my work will work for you. I use these every day in my classroom.