Izquierdo,izquierda, derecho,derecha.
All of them means direction. I don't know when to use feminino when to use masculino.
Por ejemplo:
A la izquierda de la casa hay una piscina.
Is it
A la izquierdo del comedor hay un gato??
4 Answers
If you are talking about directions, its always going to be a la izquierda, and not "a la izquierdo", yet if you are talking about the specific position of something located in some other place you use izquierdo, "izquierdo" is also commonly used to describe a "left-handed" person.
Here you have a clearer explanation from Rae.
If you are using the second one, guide yourself with the gender of the noun.

But, directions: it is always a la derecha, a la izquierda.
And derecho means keep going straight.
Melissa, izquierda as an adjective takes the gender of the noun.
La parte izquierda del cuerpo
El lado izquierdo de la calle
But, directions: it is always a la derecha, a la izquierda.
Thansk for your answer.
Can you give me an example with izquiero, by talking about the specific position of something located in some other place. Cuz I don't get it.
Another use by talking about "left-handed" person is easy to understand.