K-12math.info (English - Español – Français)

Subject Content

These terms appear in 3 or more grade levels in United States mathematics series. Links to various Wiki's which cover topics on each term are provided.

Format: Term ** average number of textbooks that the term appears in a series * (Starting in grade: / Age: )

ACUTE ANGLE

ADDITION:

1. ADDITION OF WHOLE NUMBERS
2. ADDITION OF FRACTIONS
3. ADDITION OF DECIMALS
4. ADDITION OF INTEGERS
5. ADDITION OF RATIONAL NUMBERS
6. ADDITION OF REAL NUMBERS
7. ADDITION OF COMPLEX NUMBERS

ADDITION PROPERTY (EQUATION )

ANGLE

AREA of TRIANGLE

BAR GRAPH

CENTER (CIRCLE)

CENTIMETER

CIRCLE

CIRCUMFERENCE

COMPOSITE NUMBER

COORDINATE

COUNTING

DECIMAL

DEGREE (ANGLE)

DENOMINATOR (FRACTION)

DIVISION (WHOLE NUMBER)

DIVISION (FRACTION)

DIVISION (DECIMAL)

EQUATION

EQUILATERAL TRIANGLE ** 3 *( 6 / 11 )

EQUIVALENT FRACTIONS ** 3 *( 5 / 10 )

EXPONENT** 4 *( 6 / 11 )

FACTOR (WHOLE NUMBER )** 5 *( 3 / 8 )

FRACTION

INCH ** 3 *( 1 / 6 )

INEQUALITY (NUMBER)** 4 *( K / 5 )

INTEGER

ISOSCELES TRIANGLE ** 4 *( 6 / 11 )

LINE ** 7 *( 3 / 8 )

LINE GRAPH (STATISTICS ) ** 3 *( 6 / 11 )

LINE SEGMENT

LIQUID MEASURE** 4 *( 1 / 6 )

METRIC UNITS** 3 *( 5 / 10 )

MIXED NUMERAL (FRACTION )** 4 *( 4 / 9 )

MONEY ** 4 *( K / 5 )

MULTIPLICATION (DECIMAL )** 4 *( 5 / 10 )

MULTIPLICATION (FRACTION )** 3 *( 5 / 10 )

MULTIPLICATION (WHOLE NUMBER )** 7 *( 2 / 7 )

NUMBER LINE (INTEGER )** 3 *( 6 / 11 )

NUMERATOR (FRACTION ) ** 5 *( 3 / 8 )

OBTUSE ANGLE** 4 *( 6 / 11 )

OPPOSITIES (INTEGER ) ** 5 *( 4 / 9 )

ORDERED PAIR (COORDINATE SYSTEM ) ** 5 *( 7 / 12 )

ORDERING (NUMBER)** 3 *( K / 5 )

ORDINAL NUMBER ** 3 *( K / 5 )

PARALLEL LINES

PARALLELOGRAM ** 4 *( 4 / 9 )

PERCENT

PERPENDICULAR LINES ** 6 *( 4 / 9 )

PLACE VALUE

POLYGON ** 5 *( 5 / 10 )

PRIME NUMBER (WHOLE NUMBER ) ** 5 *( 4 / 9 )

PRISM (VOLUME )** 3 *( 4 / 9 )

PROBABILITY** 4 *( 5 / 10 )

PROBLEM SOLVING ** 7 *( 3 / 8 )

PROPORTION (FRACTION )** 4 *( 6 / 11 )

PROTRACTOR ** 5 *( 5 / 10 )

QUADRILATERAL ** 3 *( 5 / 10 )

RADIUS (CIRCLE) ** 4 *( 5 / 10 )

RATIO

RATIONAL NUMBER ( ** 3 *( 8 / 13 )

REAL NUMBER ** 3 * ( 8 / 13 )

RECTANGLE (AREA )** 6 *( 4 / 9 )

RECTANGLE (QUADRILATERAL )** 8 *( K / 5 )

RIGHT ANGLE

SIMPLEST FORM (FRACTION ) ** 4 *( 5 / 10 )

SLOPE (ALGEBRA) ** 3 *( 9 / 14 )

SOLVING INEQUALITIES (EQUATION )** 3 *( 8 / 13 )

SQUARE (QUADRILATERAL )** 7 *( K / 5 )

SUBTRACTION (DECIMAL )** 5 *( 4 / 9 )

SUBTRACTION (FRACTION ) ** 3 *( 5 / 10 )

SUBTRACTION (WHOLE NUMBER ) ** 6 *( K / 5 )

TIME ** 5 *( K / 5 )

TRIANGLE

VOLUME ** 3 *( 5 / 10 )

WHOLE NUMBER ** 5 *( 4 / 9 )

WORD PROBLEMS (WHOLE NUMBER ) ** 3 *( 2 / 7 )

Group Discussions

Grade Level

Material development needs to consider the following points for each of the grade levels.

Age 5 (average age for United States Kindergarten)

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 6 ( First Grade US )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 7 ( Second Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 8 ( Third Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 9 ( Fourth Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 10 ( Fifth Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 11 ( Sixth Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 12 ( Seventh Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 13 ( Eighth Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 14 ( Ninth Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 15 ( Tenth Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Age 16 ( Eleventh Grade )

1. Standards
2. Content
3. Math outside the classroom
4. Curriculum Design Parameters

Project History

WWW.k-12math.info was the result of a shortage of funds for the development of the first resource guide for the first year comprehensive secondary schools mathematics program in Thailand. Originally the project called for a six week program with 22 selected teachers to gather and create materials and to practice teaching with them. Funds failed to appear, the program was cut to three weeks. The first year materials were written in the Thai language. The British Embassy and American Peace Corps provided many resources to assist the project. Before the program started, a detailed bibliography from the resources was created. This allowed the teachers to concentrate on adapting methods developed in English language settings to work in Thai language settings. After many writing and practice sessions, a 179 page resource guide for the first year secondary comprehensive schools mathematics book was produced.

If a single grade level bibliography helped reduced the time needed to develop materials, a broader based bibliographic system encompassing elementary and secondary school mathematics materials will accelerate the designing of new curriculum materials and translation efforts.

Notes

This page provides a starting point from which to describe what makes up primary and secondary school mathematics. We are able to name and identify the bones and provide an understanding how they are related, via their presence on different grade levels, to produce the basic skeleton for mathematics. The linguistic, economic and social environment define how that skeleton will take form, that is a curriculum to meet a learning groups mathematical needs.