1. The document reports on a student's analysis of videos demonstrating the process of brick wall construction, concrete mixing, and wall plastering.
2. Key steps observed in the brick wall construction video include laying the first course of bricks, cutting bricks to size for corners, and continuing laying courses using a spirit level and string line for alignment.
3. The concrete mixing video showed the process of adding cement, sand, water and any additives to a concrete mixer and mixing until homogenous.
4. The wall plastering video detailed applying a plaster mix to the wall using a trowel, screeding the wall smooth with a straight edge, and checking for levelness with a spirit level.