I found a few tools that could help you create and distribute English activities for primary school:

• Twee: Generates various types of English content quickly, like questions and activities, tailored for lesson planning.
• Almanack: Offers AI-powered generation of lesson plans, worksheets, and assessments that align with the curriculum, plus grading assistance.
• BrainPOP: Provides animated videos, quizzes, and creative tools to make learning engaging, along with a dashboard for tracking progress.
• Genially: Enables the creation of interactive materials such as presentations and quizzes, with gamification and collaboration features.

These tools should help you create engaging English activities and easily distribute them to your primary school students.