K-12math.info

Out of 1000 terms - 431 different terms were used in tenth grade student textbooks
average 201 terms were used per textbook

If you were designing a textbook for a 15 year old, which terms would you select?

Series:

Grade:K-12 (age:5-17)

1. Harcourt Brace Jovanovich(1972)
2. D.C. Heath (1972)
3. Laidlaw (1978)
4. Houghton Mifflin(1978)
5. Addison-Wesley(1985)
6. Harper and Row(85)
7. Holt, Rinehart and Winston(85)
8. Harcourt Brace Jovanovich(85)
9. Houghton Mifflin(85)
10. Scott, Foresman(85)
11. Houghton Mifflin(2002)
12. McGraw-Hill/Glencoe K-8 (2002)


Code:
USAGE CODE-PAGE NUMBER

4 Definition or formal development
3 Term present
2 Synonym
1 Enrichment
- Term not present
*- Book not reviewed
Range of Terms
(top 100 most frequently used)		 Textbook series (usage code)
1 2 3 4 5 6 7 8 9 10 11 12
ACUTE ANGLE 444- 3 44444- *-
ADJACENT ANGLE 444- 4 44- 444*-
ALTERNATE INTERIOR 3434- 333434*-
ALTITUDE (POLYHEDRON)44- 4- 444443*-
ALTITUDE (TRIANGLE) 44443 444444*-
ANGLE 444- 4 444444*-
ANGLE OF ELEVATION 43- 4- 444444*-
ARC 34333 443444*-
AREA OF TRIANGLE 43444 444344*-
AXES (COORDINATE SYSTEM)- 4- 34 444333*-
BISECTING AN ANGLE 43444 444444*-
CENTER (CIRCLE)33444 444444*-
CENTRAL ANGLE 44444 444444*-
CHORD 44444 444444*-
CIRCLE 4- 444 444444*-
CIRCLE (AREA) 4- 444 444344*-
CIRCUMFERENCE 444- 4 444434*-
CIRCUMSCRIBE 44- 34 334343*-
COMPLEMENTARY ANGLE 444- 4 444444*-
CONGRUENT ANGLES 44344 444- 44*-
CONGRUENT (LINES) 44444 444244*-
CONGRUENT TRIANGLES 44444 444444*-
CONSTRUCTION (ANGLE 4423- - 44443*-
CONVERSE STATEMENT 44444 44- 444*-
COORDINATE SYSTEM 44- 44 32- 222*-
CORRESPONDING PARTS (TRIANGLE)24- - 3343333*-
CONVEX POLYGON 43444 444444*-
COORDINATE (COORDINATE SYSTEM)44434 334333*-
COPLANAR POINTS 34444 444444*-
COSINE RATIO 44243 444444*-
DIAMETER 4- 444 444444*-
DISTANCE (COORDINATE SYSTEM)444- 4 444444*-
EDGE (POLYHEDRON) 44443 444- 3- *-
EQUATION 3333- 333333*-
EQUILATERAL TRIANGLE44- 44 444444*-
EXTERIOR ANGLE (TRIANGLE)44- - 4 444444*-
FACE (POLYHEDRON) 34443 443- 3- *-
HYPOTNUSE (TRIANGLE)44444 444443*-
INDIRECT PROOF 4- 24- 444444*-
INSCRIBED 44434 344343*-
INSCRIBED ANGLE - - 444 444444*-
INTERIOR (ANGLE) 44- 43 334- 43*-
ISOSCELES TRIANGLE 44444 444444*-
LATERAL FACES (POLYHEDRON)344- 4 443434*-
LINE 343- 4 444344*-
LINE SEGMENT 44442 424224*-
MEDIAN (TRIANGLE) - 4444 444444*-
MIDPOINT 44444 444444*-
NAMING AN ANGLE 44- 44 443424*-
OBTUSE ANGLE 44443 44444- *-
ORDERED PAIR (COORDINATE SYSTEM)3- 443 433333*-
PARALLEL LINES 44444 444444*-
PARALLEL LINES (EQUATION)44443 344434*-
PARALLELOGRAM 44444 444444*-
PARALLELOGRAM (AREA)43444 444344*-
PERPENDICULAR LINES 44444 444444*-
PERPENDICULAR LINES (EQUATION)44443 334434*-
PLANE 43344 444444*-
POINT 343- 4 444444*-
POLYGON 44444 444444*-
POSTULATE 44444 444444*-
PROPORTION 43444 444444*-
PROTRACTOR 343- 3 344334*-
PYRAMID (VOLUME) 4- 443 334334*-
PYTHAGOREAN THEOREM 34443 4444- 4*-
QUADRILATERAL 44334 444333*-
RADIUS 44444 444444*-
RECTANGLE 44444 444444*-
RECTANGLE (AREA) 33444 443434*-
REFLECTION 4- 444 114444*-
REGULAR POLYGON 444- 4 443444*-
RHOMBUS 44444 444444*-
RIGHT ANGLE 44443 444443*-
RIGHT TRIANGLE 34- 44 444444*-
ROTATION 4- 444 114444*-
SCALENE TRIANGLE 44- 44 444444*-
SECANT (CIRCLE)4- 344 444444*-
SEMICIRCLE 4444- 444344*-
SIDES OF AN ANGLE 44443 433444*-
SIMILAR TRIANGLE 43444 444344*-
SINE RATIO 44244 444444*-
SLOPE 44444 444444*-
SOLID 234- 3 343333*-
SQUARE 44444 444444*-
SPHERE 44444 444- 44*-
SUM OF ANGLES (TRIANGLE)44443 144444*-
SUM OF ANGLES (POLYGON)44443 434344*-
SUPPLEMENTARY ANGLE 44444 444444*-
TABLES (TRIGONOMETRY)33- 33 333334*-
TANGENT LINE (CIRCLE)44444 444444*-
TANGENT RATIO 44244 444444*-
THEOREM 4444- 444444*-
THEOREMS (TRIANGLES )33333 233333*-
TRANSVERSAL 34444 443444*-
TRAPEZOID 44444 444- 44*-
TRAPEZOID (AREA) 43444 444344*-
TRIANGLE 44- 44 444444*-
TRIANGLE INEQUALITIES 42444 444444*-
VERTEX (ANGLE) 44443 434444*-
VERTICAL ANGLES 44444 44444- *-

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