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Lines and angles are the building blocks of the geometry principles you are going to be teaching in Topic 14. In fact, students who master the concepts in TEK 4.6A, will find that they can readily define two-dimensional shapes by their characteristics. Another key piece of your instruction will be the concept of rays and angles. Students who can connect the ideas of lines, line segments, and rays to their relationships with angles will be able to fluidly apply their understanding to the concept of angle characteristics.
Your students will be asked to classify two-dimensional figures. For you to prepare them to do this, they will need to be able to define a shape based on its line characteristics. Here is an example of what you students will need to be able to do, on their own when given either a diagram or the vocabulary word of each shape. You can find the more specific information in the Topic 14: Scope and Sequence. |
4.6A identify points, lines, line segments, rays, angles, and perpendicular and parallel lines (supporting) | 4.6D classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size (readiness) |
Student Activities
The Topic 14: All About Those Lines Activities are provided here so that you can facilitate hands on interaction that keeps communication at the forefront for your students.