Teacher Explains
β¨ Warm-up: Perimeter
Alright class, let's kick things off today by reviewing perimeter! To warm up, let's find the perimeter of a few shapes. Take a look at that postage stamp, the regular hexagon, and that football field. We'll calculate the total distance around each shape.
β¨ Postage Stamp Perimeter
First, the postage stamp—add up all the sides! Then, the regular hexagon—remember, 'regular' means all sides are equal. Finally, the football field—don't forget to include all four sides! This is great practice for understanding perimeter.
β¨ Hexagon and Football Field Perimeter
Now, let's recap what we already know about perimeter and area. We have a couple of figures here. Find the perimeter of each, carefully adding up the lengths of all the sides. And for area, imagine each small square is 1 square centimeter. Count the squares within each colored figure to find the total area.