No, Grammar Galaxy is not a full curriculum. It is an English language learning tool, designed to help English language learners improve their fluency, grammar and writing. Specifically, it offers online practice activities and educational games for beginners, intermediate and advanced English speakers. The activities help users learn and practise subject-verb agreement, verb tenses, sentence building and parts of speech. Users can also track their own learning progress and get personalized advice from the support team. So, although it's not a comprehensive curriculum, it is an excellent supplementary tool to help students become more confident and proficient in using the English language.