The spelling of the phrase "unsharpened pencil projects" seems straightforward, but there are a few tricky parts to it. The beginning "un-" prefix indicates negation, while the word "sharpened" contains the pronunciation of /ʃ/, which can be tough for some English learners. The ending "-ed" indicates past tense, and "projects" ends with a voiced /z/ sound. So, altogether, it might be transcribed as /ʌnˈʃɑrpənd ˈpɛnsəl ˈprɑdʒɛkts/.