An example of sternberg's practical intelligence is

Practical intelligence examines an individual's ability to do or function in the real world. This kind of intelligence is also known as "Street Smarts". It is a person's capability to adjust to everyday life. An example of practical intelligence is someone being able to make their way home without any money or a use of a map.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

producing or giving rise torelating to or engaged in the production of goods, crops, or other commodities.

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.