Find the first names of the teachers that teach first grade.
CREATE TABLE teachers (
    firstname VARCHAR,
    classroom VARCHAR
)

CREATE TABLE list (
    classroom VARCHAR
)
SELECT DISTINCT T2.firstname FROM list AS T1 JOIN teachers AS T2 ON T1.classroom = T2.classroom WHERE grade = 1
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Find the first names of the teachers that teach first grade. ### Input: CREATE TABLE teachers (
    firstname VARCHAR,
    classroom VARCHAR
)

CREATE TABLE list (
    classroom VARCHAR
) ### Response: SELECT DISTINCT T2.firstname FROM list AS T1 JOIN teachers AS T2 ON T1.classroom = T2.classroom WHERE grade = 1