Children are keenly aware of the size of things, especially big, bulky things that get in their way or are too unwieldy for their small bodies to handle. But the […]
Ask students to imagine using a pencil eraser so much that the whole eraser becomes a pile of tiny eraser rubbings. If you saved every tiny piece of rubbing and […]
What is the smallest amount of weight you can imagine an object having? What did your students put on the weight line during THIS INVESTIGATION?
Letter from the Engineer You may know something about the work that scientists do. Some study the stars and planets. Some study the different plants and animals on Earth. […]
Children enter the classroom already knowing something about weight. The fact that objects differ in weight is salient to them, as their sensory systems respond to the pressure of objects […]