Lesson 4: Surface Area of 3-D Objects
Focus
Now that you are familiar with estimating and converting between SI (metric) units and imperial units, you will expand your knowledge to include 3-D objects that include curved surfaces. These objects include cylinders, spheres, cones, prisms, and pyramids. You will use the skills gained in Lesson 2 where you explored measuring curved surfaces.
Our surroundings are full of various 3-D objects, many of which can be broken into smaller, basic objects whose surface area and volume can be calculated. You will investigate surface area in this lesson, and by the end of this lesson you will be able to apply and use the surface area calculations needed in your project.
Outcomes
At the end of this lesson, you will be able to solve, using SI and imperial units, problems that involve the surface area of objects, including:
- right cones
- right cylinders
- prisms
- pyramids
- spheres
Lesson Questions
By the end of this lesson you should feel comfortable solving the following questions:
- How is the concept of surface area applied to understanding the design of structures?
- How do you determine the surface area of a 3-D object?
Lesson Completion and Assessment
As you work through each lesson, complete all the questions and learning activities in your binder using paper and pencil, clearly labeling your work (they refer to this as your course folder). These include the Are you Ready, Try This, Share and Self Check questions. Check your work if answers are provided. Remember that these questions provide you with the practice and feedback that you need to successfully complete this course.
Once you have completed all of the learning activities, take the Lesson Quiz. This is the assessment for each lesson and is located under the Assess tab or by using the Quizzes link under the Activities block.
** Note – Share questions may have to be done on your own depending on your learning situation**