I would suggest these:
294802 Homeschool Language Arts 1 Curriculum
196975 Letters and Sounds 1 Test Key
241423 Basic Phonics Charts (Grade 1)—Revised
I would also get these for your student:
Grade 1 readers
Letters and Sounds 1 workbook
Letters and Sounds student test booklet
Language 1 workbook (if you also want to do the language portion, I tend to do both.)
I don’t use the teacher’s workbook answer keys really for most things below 2nd grade because they’re fairly easy to figure out just based on the worksheets. You do kind of need the test key because it also has the questions for some of the worksheets or sentences they need to write. I’ve done the tests before w/o the key and I just make up sentences and words for them to write, but the test key helps.
Hope that helps,
erica