Missy McCarthy Okemos High School Math Instructor

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Presentation transcript:

Missy McCarthy Okemos High School Math Instructor Chapter 1: Foundations for Geometry 1-1: Understanding Points, Lines, and Planes Missy McCarthy Okemos High School Math Instructor

I CAN: Identify, draw, and name points, lines, and planes. Identify when objects are collinear or non-collinear and coplanar and non-coplanar. Identify, draw, and name segments, endpoints, rays, and opposite rays. Define the term Postulate. Identify the intersection of geometric objects. Make sense of the 5 postulates regarding points, lines, planes, and their intersections (see pages 7 – 8 of text)

What is Geometry?

Undefined Terms A term that cannot be defined by using other figures.

Undefined Terms I CAN: Identify, draw, and name points, lines, and planes.

Collinear and Coplanar I CAN: Identify when objects are collinear or non-collinear and coplanar and non-coplanar.

Example Name a point. Name a 2 lines. Name a plane. Are Point E and Point C collinear? Why are why not?

More definitions I CAN: Identify, draw, and name segments, endpoints, rays, and opposite rays.

Postulates and Axioms What is a postulate/axiom? I CAN: Define the term Postulate.

Postulates and Axioms I CAN: Make sense of the 5 postulates regarding points, lines, planes, and their intersections.

Intersecting elements I CAN: Identify the intersection of geometric objects.

More postulates/axioms I CAN: Make sense of the 5 postulates regarding points, lines, planes, and their intersections.

Example

Final example

I CAN: Identify, draw, and name points, lines, and planes. Identify when objects are collinear or non-collinear and coplanar and non-coplanar. Identify, draw, and name segments, endpoints, rays, and opposite rays. Define the term Postulate. Identify the intersection of geometric objects. Make sense of the 5 postulates regarding points, lines, planes, and their intersections (see pages 7 – 8 of text)

Write down at least one question that you have about the lesson and bring it with you to class tomorrow.