Jan. 20, 2011 – The students in Mme Lavigne’s grade 3 class have been learning about Strong and Stable Structures in Science.

Both people and animals build structures, and both people and animals need their structures to be strong and stable and to last a long time. Students need to understand the important distinction between strength (the capacity to withstand forces that tend to break an object or change its shape) and stability (the capacity to maintain balance and stay fixed in one position), and the ways in which these two properties affect the usefulness of a structure.

The class has been investigating the factors that affect a structure’s strength and stability, such as its shape and centre of gravity, and apply their learning as they design and build their own strong and stable structures.