Area of Triangles

Today we had a triangle investigation day!  Students were given an acute, right, and obtuse triangle and they proved that the area of a triangle is always half of the area of a rectangle formed by the base and height of that triangle.  It was quite the day filled with measurement and math!  On Friday we will tackle different shapes there we can "chunk" or "carve" out rectangles and triangles to make the shape.  For example, when given the shape below, students can make several rectangles to find the area.