Point, Line, Angle, Triangle, Quadrilateral, Polygon, Circle, Plane
CNX Connexions OER Mathematics Grade 1-9 (2009)
Series | Code | Information
To link to CNX materials, click on term usage code under the appropriate grade (age) level.
To find the term in the CNX module you may want to use your browser's "find" option which is under the edit menu.
Reminder: K-12math.info only looks at the Leaner Section (except in grades 4, 8 and 9 which do not have this section).
USAGE CODE:
4 Definition or formal development
3 Term present
2 Synonym used
1 Enrichment
- Term not present
| Grade Level: |
__ 1 |
__ 2 |
__ 3 |
__ 4 |
__ 5 |
__ 6 |
__ 7 |
__ 8 |
__ 9 |
| Average Age: |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
| POINT | - | - | - | - | - | - | 4 | - | - |
| LINE | - | - | - | - | - | 3 | 4 | - | - |
| BISECTOR (SEGMENTS) | - | - | - | - | - | - | 3 | 4 | - |
| DRAWING LINES | 2 | - | - | - | - | - | 3 | - | - |
| LINE SEGMENT | - | - | - | - | - | 3 | 4 | - | - |
| MIDPOINT | - | 2 | - | - | - | - | - | - | - |
| PARALLEL LINES | - | - | - | - | - | 3 | 4 | 4 | 3 |
| PERPENDICULAR LINES | - | - | - | - | - | - | 4 | - | 3 |
| STRAIGHT LINE | - | - | - | - | - | 3 | - | - | - |
| RAY | - | - | - | - | - | - | 4 | - | - |
| ANGLE | - | - | - | 3 | 3 | 4 | 3 | 3 | - |
| ACUTE ANGLE | - | - | 3 | - | - | 4 | - | 4 | - |
| BISECTING AN ANGLE | - | - | - | - | - | - | - | 4 | - |
| NAMING AN ANGLE | - | - | - | - | - | 3 | - | 3 | - |
| OBTUSE ANGLE | - | - | 3 | - | - | 4 | - | 3 | - |
| REFLEXIVE ANGLE | - | - | - | - | - | - | - | 3 | - |
| RIGHT ANGLE | - | - | 3 | - | - | 4 | - | - | - |
| STRAIGHT ANGLE | - | - | - | - | - | 4 | - | - | - |
| VERTEX (ANGLE) | - | - | - | - | - | 4 | - | - | - |
| TRIANGLE | 3 | 3 | 3 | 4 | 4 | 3 | 3 | 3 | 3 |
| ACUTE TRIANGLE | - | - | - | - | - | - | 3 | 2 | - |
| ALTITUDE (TRIANGLE) | - | - | - | - | - | - | - | - | 2 |
| BASE (TRIANGLE) | - | - | - | - | - | - | - | - | 3 |
| CONGRUENT TRIANGLES | - | - | - | - | - | - | - | - | 4 |
| CONSTRUCT TRIANGLES | - | - | - | 4 | - | 2 | - | 3 | 2 |
| CORRESPONDING PARTS | - | - | - | - | - | - | - | - | 3 |
| EQUILATERAL TRIANGLE | - | - | 3 | - | - | - | 3 | 3 | 4 |
| EXTERIOR ANGLE | - | - | - | - | - | - | - | 3 | - |
| HYPOTNUSE | - | - | - | - | - | - | - | - | 3 |
| ISOSCELES TRIANGLE | - | - | - | - | - | - | 4 | 3 | 3 |
| RIGHT TRIANGLE | - | - | - | - | - | - | 3 | 3 | 2 |
| SCALENE TRIANGLE | - | - | - | - | - | - | 4 | 3 | - |
| SIMILAR TRIANGLE | - | - | - | - | - | - | - | - | 4 |
| SUM OF ANGLES | - | - | - | - | - | - | - | 3 | 2 |
| THEOREMS (TRIANGLES | - | - | - | - | - | - | - | 3 | - |
| QUADRILATERAL | - | - | - | 4 | 4 | - | - | - | 4 |
| CONSTRUCTION (QUAD. | - | - | - | 4 | - | - | - | - | - |
| DIAGONAL OF QUAD. | - | - | - | - | - | - | - | - | 3 |
| PARALLELOGRAM | - | - | - | 4 | - | - | 3 | - | 4 |
| RECOGNITION OF | 2 | 2 | - | - | - | - | - | - | - |
| RECTANGLE | 3 | 3 | 4 | 3 | 4 | 3 | 3 | - | 4 |
| RHOMBUS | - | - | - | 4 | - | - | 3 | - | 4 |
| SQUARE | 3 | 3 | 3 | 4 | 4 | 4 | 3 | - | 4 |
| TRAPEZIUM | - | - | - | 4 | - | - | - | - | 4 |
| POLYGON | - | - | - | 4 | - | - | 3 | - | 4 |
| CONGRUENT POLYGONS | - | - | - | - | - | - | - | - | 2 |
| CONSTRUCT POLYGONS | 2 | - | - | - | - | - | - | - | - |
| CONVEX POLYGON | - | - | - | 3 | - | - | - | - | - |
| CORRESPONDING PARTS | - | - | - | - | - | - | - | - | 3 |
| HEXAGON | - | - | - | 4 | 3 | - | - | - | - |
| INTERIOR/ON/EXTERIOR | 2 | - | - | - | - | - | - | - | - |
| NAMING OF POLYGONS | - | - | - | - | - | - | - | - | 3 |
| PENTAGON | - | - | - | 4 | 3 | 3 | 3 | - | 4 |
| REGULAR POLYGON | - | - | - | 3 | - | - | - | - | 4 |
| SIMILAR POLYGONS | - | - | - | - | - | - | - | - | 3 |
| CENTER | - | - | 3 | - | - | 2 | - | 3 | - |
| CHORD | - | - | - | - | - | - | - | 3 | - |
| CIRCLE | 4 | 3 | 3 | 3 | - | 3 | - | 3 | - |
| CIRCUMFERENCE | - | - | - | - | - | - | - | 4 | - |
| CIRCUMSCRIBE | - | - | - | - | - | - | - | 3 | - |
| COMPASS | - | - | 3 | - | - | 3 | 3 | 3 | - |
| CONSTRUCTION | - | - | 2 | - | - | 2 | - | - | - |
| DIAMETER | - | - | 3 | - | - | 3 | - | 3 | - |
| RADIUS | - | - | 4 | - | - | 3 | - | 3 | - |
| PLANE | - | - | - | - | - | - | 4 | - | - |
©1972 (paper), 1985 (APPLE II/PC), 2005(www), 2010 Jim Kelly - All Rights Reserved.