Measurement

This weekend, Mrs. Alaniz spent some time making a dessert.
She had to assemble several ingredients. She also had to read the recipe to make sure she got the right amounts.

Here's one of them.

What is happening in this picture? What unit of measurement is being used here?

Here's another picture:

What do you notice about these boxes?

Here's another one of the ingredients:

What unit would Mrs. Alaniz use to measure this ingredient?