SINGAPORE - Families with children can learn about the importance of green buildings and eco-friendly living at the Build-it-Green Day Out this weekend, at the Toa Payoh Hub Atrium.

From exploring the titular Glass House from local children's storybook The Adventures of Greco and Beco: The Glass House, to rotating a house to suit the orientation of the sun, interactive activities aim to teach children about the importance of an environmentally sustainable built environment.

The free event runs from 2pm to 8pm on Friday (June 24), and 10am to 8pm on Saturday and Sunday. It is jointly organised by the Building and Construction Authority of Singapore (BCA) and the Singapore Green Building Council (SGBC).

This year's highlight is a mock-up of the Glass House, where visitors can feel the effects of building with non-eco-friendly design features such as poor ventilation.

"Children and families might have heard the story through the storytelling sessions last year or read the book from the library, school or the Internet. However, learning is at its best when it is through real-life experiences," said Ms Jeanna Das, BCA's group director for corporate development.

"That is why we are bringing life size replicas of the book's buildings and elements to the heartlands."

Other activities include a matching game in which players spot energy- and water-efficient appliances, and a live puppet show by the Singapore Science Centre's KidSTOP centre.