This is a complete smartboard lesson on calculating slope - visually by drawing a triangle or using the slope formula. The warm-up is an addition of integers pyramid. Click on the bottom row of blue triangles to reveal the numbers to add. Add 2 to find the sum above it. Slope is defined and examples of types is given. Slope is calculated in several examples first by drawing a triangle and then checked using the slope formula. Closure is a pirate koosh.