I purchased these two clear measuring cups at The Dollar Tree so I could teach A how to pour. She loves helping me cook in the kitchen and one of her favorite things to do is "dump" or pour the ingredients. I liked these measuring cups because they are clear, and it's easy to see whatever is inside.
We put the empty cup in a clear shoebox and she poured the beans. She did this over and over. It was very entertaining for her, and her pouring skills improved with practice.