Create a 25-second vertical Instagram Reel for children learning English. Style: colorful, playful, modern, cartoon animation, bright classroom, fun background

A giant 3D letter A, bright red, bouncing in a sunny classroom, floating yellow stars, playful atmosphere, vertical 9:16 aspect

Red letter A transforms into a friendly red apple, smiling face, cartoon classroom background, floating yellow stars, close-up shot, vibrant lighting

Friendly red apple rolls into a colorful basket, classroom desk setting, alphabet posters on wall, bright morning light, soft shadows, modern animation

Classroom desk widens to show a group of happy letters, alphabet posters background, confetti falling, bright colors, cheerful educational finale, vertical layout