Ser and estar
As a learner and user of Spanish, you need to deal with two main verbs used to express the English verb 'to be:' ser and estar. As you have probably discovered, deciding whether to use one form or the other can be a challenge.
The following strategies have proven useful for many beginning learners.
Additionally, as you interact with competent speakers of the language, you will most likely fine-tune your understanding of the appropriate context for each verb.
When to use ser and estar
Acronyms for the basic differences
Observing contextual use
When to use ser
Association by the first sound of the word
When to use estar
A rhyme
A phrase with an acronym in it