Activity 01
Think-Pair-Share: Exposure Triangle Analysis
Display three photographs of the same scene taken with different exposure settings , wide aperture with fast shutter, narrow aperture with slow shutter, and high ISO with noise. Students study each image individually and note differences in sharpness, depth of field, grain, and overall mood. They share observations with a partner, then the class builds a diagram together connecting each technical variable to its visible effect in the images.
How does aperture, shutter speed, and ISO collectively influence a photograph's exposure?
Facilitation TipDuring the Exposure Triangle Analysis (Think-Pair-Share), circulate and listen for students describing how changing one setting requires adjusting the others to maintain balance.
What to look forPresent students with three photographs that clearly demonstrate different uses of aperture (e.g., shallow depth of field, deep depth of field). Ask them to identify the primary compositional effect of the aperture in each image and explain which setting (wide or narrow aperture) was likely used.