Here are some possible Montessori activities for a 5 year old:

1. Practicing dressing and undressing independently, such as putting on and taking off a jacket or tying shoelaces.
2. Doing puzzles and matching games to develop problem-solving skills and hand-eye coordination.
3. Working with "practical life" activities, such as pouring water from one container to another, using a hand-crank pencil sharpener, or using tongs to transfer objects from one container to another.
4. Using manipulatives to learn math concepts, such as counting, sorting, and comparing quantities.
5. Exploring and manipulating materials to learn about different textures, shapes, colors, and other properties of objects.
6. Engaging in sensory activities, such as smelling herbs, touching different fabrics, or tasting foods from different parts of the world.
7. Reading and writing, using sandpaper letters to trace the shapes of the letters and making simple words.
8. Singing songs, reciting rhymes, and engaging in other language-rich activities to develop verbal skills.
9. Engaging in imaginative play, using props and costumes to act out stories and explore different roles and scenarios.
10. Participating in group activities, such as games, art projects, or discussions, to develop social skills and a sense of community.

It's important to note that Montessori activities are designed to be self-directed and hands-on, allowing children to learn and explore at their own pace and in their own way. The goal is to provide a supportive environment that encourages children to be curious, creative, and independent learners.