This is a complete smartboard lesson discovering the meaning of the solution to an equation. The lesson begins with a subtraction of integers pyramid. Click on the bottom row of blue triangles to reveal the integers to subtract. The difference will be found above them. Review solving a simple 2-step equation algebraically. Then the concept of solving by graphing is introduced. Noting that the x-intercept is the solution to the equation. There are 3 examples to work through together. Closure to the lesson is a review of slope and identifying parallel and perpendicular slopes. Click on a spaceship to go to a question page, the answer lies behind the spaceman. Click the "back" to return to the homepage.