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This spelling curriculum is very, very easy for second grade level. It's not challenging, if that's what you're looking for for your child. Also, I ultimately ditched it because of how it is set up. You'll have several lessons by themselves and then all of a sudden out of nowhere it wants the child to utilize spelling words cumulatively from several lessons with no word bank provided. So you want us to dig back to the spelling lists of each lesson? It might work for some parents, but it wasn't our cup of tea.
I did not realize that this book is designed to be used with the rest of the Spectrum curriculum. We are working around it but it assumes That your child has been introduced to certain math or science words by using the Spectrum curriculum for those subjects, making new "spelling" words appear out of nowhere. A bit confusing for the child.