between operator ssis

Hi,

i need to display formula in ssis derived column expreesion like below.

i have created new field [job status],i have already existing field Grade using this filed i need to write the expreesion.

if grade between 1 to 3 i need to display the [job status] as "Excellent"

if grade between 4 to 8 i need to display the [job status] as "good"

can any one explain me this scenario.

Regards