The Duchess of Cambridge, a mother of three, also sat on the floor to join a \"Circle of Security\" that is designed to help parents and caregivers \"better understand their child's emotions,\" according to Kensington Palace.

Circle of Security is one of two universal programmes that is offered to all parents with children of 0 to 4 years @HF_CC.

It helps parents and care givers better understand their child’s emotions, and enhances the development of their child’s self-esteem. pic.twitter.com/t0gDUhIpNL

— Kensington Palace (@KensingtonRoyal) March 12, 2019

The duchess has made early childhood education a focus of her charitable work.

\"PHOTO:
Arthur Edwards/AP
PHOTO: Britain's Kate the Duchess of Cambridge sits with children during a visit to the Henry Fawcett Children's Centre in Kennington, London, March 12, 2019.
>
\"PHOTO:
Arthur Edwards/AP
PHOTO: Britain's Kate the Duchess of Cambridge, reacts with a child, during a visit to the Henry Fawcett Children's Centre in Kennington, London, March 12, 2019.
>

(MORE: British royals give social media guidelines after reports of Kate, Meghan abuse)

Kate's visit Tuesday with toddlers came one day after she made a much more formal appearance at Westminster Abbey for the annual Commonwealth Day Service, which celebrates the 53 Commonwealth countries around the world.

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A post shared by Kensington Palace (@kensingtonroyal) on Mar 11, 2019 at 11:28am PDT

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