Classifying 3D Objects
Learn all about Classifying 3D Objects in this full lesson video!
Grade 9 Maths
Term 4
Geometry of 3D Objects
CAPS aligned
Content covered in this Classifying 3D Objects lesson:
Concepts you will learn in this Classifying 3D Objects lesson:
Properties of 3D Objects: Detailed review of Surfaces, Edges, and Vertices.
Polygons: Foundational concepts.
Polyhedra: Understanding these key 3D shapes.
Prisms
Pyramids
Platonic Solids
Euler’s Formula: Investigating the formula: V – E + F = 2 (Vertices – Edges + Faces = 2).
Other 3 Dimensional Objects: Studying the properties of Cylinders, Cones, and Spheres.
Lesson format:
- During the video, I spend time teaching and explaining about the concepts covered in the lesson.
- I give full examples where I show you how to answer problems, showing all working out.
- You will have a chance to work on practice examples with a timer – this will help you to get used to working with a time limit (a necessary skill for when you need to do tests and exams).
- I go through all the practice examples in detail after you have had time to complete them, so that you can see how you did – and where you went wrong if you made mistakes.
Get the worksheet that goes with this lesson
The worksheet includes the examples I go through in the lesson – and in some cases there may be sections that you can fill in on the worksheet instead of needing to copy everything down during the lesson (like tables etc).
The worksheet also comes with an extra exercise for you to use to practice the concepts taught in this lesson after you have finished the video.
Additionally, the worksheet includes answer sheets – with fully worked out solutions, so you can check your work and see how to complete the problems in the exercise step-by-step.
