Are you teaching about different materials? Are you focusing on the uses of glass? Are you looking for visual resources to to support your teaching in this subject? I have collected together 30 high quality photos of glass objects which would make an excellent display or a great introduction into the features of glass and the uses of glass.
You could look at it directly as a presentation and discuss the different uses of glass being shown in each of photos.
You could print off and laminate the photos to make an interesting, eye-catching display about the uses of glass.
The students could also take the laminated photos and sort them into the different uses of glass. The students can then discuss what they think why did people choose to use glass in each of the images.
The photos could also be used as prompts for creative writing, factual writing or descriptive writing.