1. Surefoot International School Calabar GRADE 4: MR. ONYEMA NKELE MATHEMATICS: POINTS, LINE SEGMENTS, LINES AND RAYS. WEEK 1 8/09/2014

2. INTRODUCTION This lesson will be introducing students to the basic units of geometry. Students will be expected to be able to draw, label and Identify the following.  Points  Line Segments  Lines  And Rays

3. POINTS A point is defined as “A precise location or place on a plane. Usually represented by a dot.” In simple words, a point is a dot that shows a location. In this class points will be used to show locations on lines and geometric shapes.

4. EXAMPLE This is Point A This is Point B The points are used to represent locations. Letting the reader be aware of location(s) are being referred to in any particular problem.

5. What happens when you connect to the space between to points? QUESTION:

6. LINE SEGMENTS When you connect two points you create a line segment. The two points then become the end points. ALL line segments must have two end points. End point 1 End point 2 Line segment AB,Line Segment BA, AB, or BA Are all acceptable ways to represent the line segment above

7. LINES A line runs straight through two points very similarly to a line segment. Line CD,Line DC, CD, or DC Are all acceptable ways to represent the line above

8. QUESTION: What is the difference between a LINE and LINE SEGMENT?

9. Give up? A line segment has an end point or termination point on BOTH sides. A LINE however continues endlessly in both directions, beyond the points on the line, and where the line comes to a visible end. The arrow on the end(s) represents the line moving endlessly in that direction.

10. RAYS A Ray is a line that extends endlessly in a single direction. A ray has a single end point while It continues to extend in a single direction. In this case it continues extending to the right. Ray EF,Ray FE, EF, or FE Are all acceptable ways to represent the Ray above