Basic Areas

In this basic area lesson, students learn what area is and how to calculate it for simple shapes such as rectangles, parallelograms, and triangles. They also learn the units of area and how to measure height perpendicular to the base. Students are introduced to formulas for calculating area and given examples to practice with. The lesson emphasizes the importance of measuring properly for accurate results and includes interesting facts, such as how all triangles with the same base and height have the same area.

Basic math of area, units, rectangle, parallelogram, triangle

• How do you find the area of a shape in geometry from a grid?
• How do you find the area of rectangles and triangles on a coordinate grid?
• What is the formula for the area of a rectangle?
• What is the formula for the area of a parallelogram?
• Why is the area of a parallelogram the same as that of a rectangle?
• What is the formula for the area of a triangle?
• Why is the area of a triangle half of the area of a rectangle?
• If the base of a triangle is 6cm and the height is 4cm, what is the area of the triangle?