Here is everything you need to introduce the concept of structures with your students in French:
1. Display board with the Three Types of Structures (Naturelle, Squelette et Solide)
2. Word wall that introduces some examples of the three types of structures in their environment.
3. A writing activity: Students create their own structure, draw it and then write about it.
4. What is a structure: Introduces students to the concept of the definition of a structure.
There are also word walls and display boards on Les materiaux at les attaches located in my store.