You could look at it directly as a presentation and discuss the different materials being shown in each of photos.
I have also added a 31 Teaching Activity Guide to make sure you get the very most out of this purchase.
You could print off and laminate the photos to make an interesting, eye-catching display about Monkey Day.
The students could also take the laminated photos and sort them into different types of monkeys. The students can then discuss what they think each one was thinking.
The photos could also be used as prompts for creative writing, factual writing or descriptive writing.