[Nfb-krafters-korner] decrease and increase

[Lisamaria Martinez]

When would someone decrease or increase in crocheting?

would this be used in making, say, a hat?

I ask these questions for two reasons:

1. I would like to learn how to make a baby hat or adult beanie hat.

2. I would like to learn how to crochet a star. One of my crocheting
goals is to crochet a Puerto Rican flag throw and I would need to know
how to crochet a star within a triangle.

Thanks for any advice or explanations.

LM