K-12 Educational Web App Build

I need a complete, production-ready educational web application tailored for K-12 students. The project covers both visual design and full-stack development, delivered within one month.

Scope
• Create an engaging, age-appropriate UI that works smoothly on desktops, tablets, and mobiles.
• Build the underlying application so teachers can post lessons, students can log in, and progress is stored reliably.
• Implement clean, accessible front-end code (HTML5, CSS3, JavaScript—React is welcome) and a secure back end (Node.js or another modern framework).
• Set up a simple admin area for content updates without touching code.
• Handle testing, basic documentation, and deployment to a live host of my choice.

Acceptance criteria
• All core pages load under two seconds on a standard school network.
• The interface passes WCAG AA contrast checks.
• User data is stored securely with basic authentication in place.
• I can review wireframes, a clickable prototype, and then staged builds before final launch.

The timeline is tight, so a clear schedule for design hand-off, sprint reviews, and final sign-off is essential. Once complete, please transfer full source code and any design assets.