Curated OER
How Light Moves
Learners study the movement of light. In this light lesson, students work in groups to participate in a light and shadow walk around their neighborhood. Learners brainstorm rules for light movement and watch videos about light travel,...
Physics Classroom
The Physics Classroom: Image Formation for Concave Mirrors Case A
This animation depicts the path of light to each person's eye. Different people are sighting in different directions; yet each person is sighting at the same image location. In this animation the image location is the intersection point...
Ministry of Education and Employment of Spain
Red Escolar: Perimetros
In Spanish. This site has a simple explanation on how to find the perimeter of a plane figure. It also contains an activity of following the path of a light and a brief biography of Oenopides de Chios.