The Celebrity Apprentice judge captioned the clip of Arabella, three, and Joseph, 15 months: "cutest cleaning crew! #chores".
Arabella and Joseph Kushner 'cleaning' their Manhattan home
In it the little boy is seen crawling along with a dust brush, while Arabella tries to sweep in between dancing about in her Frozen princess costume.
At one point Joseph tries to get to his feet and falls, but struggles on undeterred.
The children's father is Ivanka's husband Jared Kushner and the couple believe in instilling them with a serious work ethic.
Ivanka Trump helps run her father's company and has her own jewellery brand
Ivanka says: "My parents always taught us that hard work never goes out of style. My upbringing has prepared me for a challenging career that requires ambition, a strong work ethic and determination."
Jared runs his father's property empire and owns The New York Observer. His brother Joshua is equally high powered as the founder and managing partner of an investment firm. He is currently in a relationship with Karlie Kloss.