Describing through adjectives can be a helpful skill to teach outside of parts of speech lessons. They can be a good scaffold to descriptive writing and can help students develop the ability to communicate in the absence of extensive vocabulary. For example, when my one of my students, who has unclear speech, has difficulty getting me to understand a word he's saying or cannot remember the word at all, he will describe what he's saying by shape, color, function, etc., which is amazing!
These task cards are helpful by providing appropriate and simple everyday items for kids to describe with adjectives. They may need prompting for ideas and guiding categories, including color, shape, size, function, etc. Once listed, these cards can serve as a great planning tool for sentence building, in written or verbal format.