Know and apply spelling conventions and patterns.
a. Spell single-syllable words with less common and complex graphemes (e.g., ough, augh, old, -ind, -ost, -ild families).
b. Use a dictionary or thesaurus to check spellings of unknown words.
c. Identify language of origin for words, as noted in dictionaries.
d. Spell singular and plural possessives (e.g., teacher's, teachers').
e. Spell regular two-and three-syllable words that:
1. Combine all basic syllable types: closed, VCe (Vowel-Consonant-silent e), open, vowel team, vowel-r, and consonant le.
2. Include common, transparent prefixes and suffixes (e.g., re-, pre-, sub-, un-, dis-, mis-; -able, -ness, -ful, -tion).
f. Spell the 500 most common words in English, including regular and irregular forms, as found in a research-based list.