Alabama Learning Exchange
Polygon Perimeters
What are polygons? Learners find the perimeter of various geometric figures that the teacher has drawn in chalk on the sidewalk. A worksheet to record their measurements is provided. Get your third graders outside and exploring the world...
Curated OER
Lesson 2: Measurement Tools
Elementary schoolers examine the uses of rulers, scales, and measuring cups. They determine the criteria for the use of each tool and visit different areas of school to find items that can be measured with these tools. Everyone takes...