POPULATION ID
1 = TIMSS POP 1
2 = TIMSS POP 2
3 = TIMSS POP 3
9 = OMITTED

GRADE ID
3 = GRADE 3
4 = GRADE 4
5 = GRADE 5
99 = OMITTED

STANDARDIZED GRADE ID
1 = LOWER GRADE
2 = UPPER GRADE
9 = OMITTED

NAME OF COURSE
1 = MATHEMATICS
6 = INTEGRATED SCIENCE
7 = MATHEMATICS AND INTEGRATED SCIENCE
9 = OMITTED

MATHEMATICS TEACHER INDICATOR
9 = OMITTED

EXPLICIT STRATUM CODE
999 = OMITTED

JACKKNIFE ZONE
99 = OMITTED

WEIGHT FOR MATHEMATICS TEACHER DATA
999999 = OMITTED

MATH INTL BNCHMRK REACHED WITH 1ST PV
1 = BELOW 400
2 = AT OR ABOVE 400 BUT BELOW 475
3 = AT OR ABOVE 475 BUT BELOW 550
4 = AT OR ABOVE 550 BUT BELOW 625
5 = AT OR ABOVE 625
9 = OMITTED

FILE CREATION DATE AT DPC HAMBURG
99999999 = OMITTED

GEN\AGE OF TEACHER
1 = UNDER 25
2 = 25 TO 29
3 = 30 TO 39
4 = 40 TO 49
5 = 50 TO 59
6 = 60 OR OLDER
9 = OMITTED

GEN\SEX OF TEACHER
1 = FEMALE
2 = MALE
9 = OMITTED

GEN\TEACHING CERTIFICATE
1 = YES
2 = NO
9 = OMITTED

GEN\LEVEL OF FORMAL EDUCATION COMPLETED
1 = NOT COMPL <ISCED 3>
2 = FINISH <ISCED 3>
3 = FINISH <ISCED 4>
4 = FINISH <ISCED 5B>
5 = FINISH <ISCED 5A FIRST DEGREE>
6 = FINISH <ISCED 5A SECOND DEGR> OR HIGHER
9 = OMITTED

MAT\MAIN AREA EDUC\MATHEMATICS
1 = YES
2 = NO
6 = LOGICALLY NOT APPLICABLE
9 = OMITTED

GEN\INTERACTIONS TEACHERS\DISCUSS CONCEP
1 = NEVER OR ALMOST NEVER
2 = 2 OR 3 TIMES PER MONTH
3 = 1 TO 3 TIMES PER WEEK
4 = DAILY OR ALMOST DAILY
9 = OMITTED

GEN\THINKING ABT CURR SCH\SAFE NEIGHBORH
1 = AGREE A LOT
2 = AGREE
3 = DISAGREE
4 = DISAGREE A LOT
9 = OMITTED

GEN\SEVERITY PROBLEM\BUILDING REPAIR
1 = NOT A PROBLEM
2 = MINOR PROBLEM
3 = SERIOUS PROBLEM
9 = OMITTED

GEN\CHARACTERIZE\JOB SATISFACTION
1 = VERY HIGH
2 = HIGH
3 = MEDIUM
4 = LOW
5 = VERY LOW
9 = OMITTED

MAT\PREPARED\NUMBER\COMP WHOLE NUMB
1 = NOT APPLICABLE
2 = VERY WELL PREPARED
3 = SOMEWHAT PREPARED
4 = NOT WELL PREPARED
9 = OMITTED

MAT\TEXTBOOK\USED HOW IN TEACHING MATHS
1 = AS THE PRIMARY BASIS FOR MY LESSONS
2 = AS A SUPPLEMENTARY RESOURCE
6 = LOGICALLY NOT APPLICABLE
9 = OMITTED

MAT\ARE STD PERMITTED TO USE CALCULATOR
1 = YES, WITH UNRESTRICTED USE
2 = YES, WITH RESTRICTED USE
3 = NO, CALCULATORS ARE NOT PERMITTED
9 = OMITTED

MAT\USE CALCULATOR\CHECK ANSWERS
1 = EVERY OR ALMOST EVERY LESSON
2 = ABOUT HALF THE LESSONS
3 = SOME LESSONS
4 = NEVER
6 = LOGICALLY NOT APPLICABLE
9 = OMITTED

MAT\HOW OFTEN ASK\PRACTICE ADDING
1 = EVERY OR ALMOST EVERY LESSON
2 = ABOUT HALF THE LESSONS
3 = SOME LESSONS
4 = NEVER
9 = OMITTED

MAT\TAUGHT\NUMBER\REPRESENTING WHOLE NUM
1 = MOSTLY TAUGHT BEFORE THIS YEAR
2 = MOSTLY TAUGHT THIS YEAR
3 = NOT YET TAUGHT OR JUST INTRODUCED
9 = OMITTED

MAT\FREQUENCY OF MATHS HOMEWORK
1 = EVERY OR ALMOST EVERY LESSON
2 = ABOUT HALF THE LESSONS
3 = SOME LESSONS
6 = LOGICALLY NOT APPLICABLE
9 = OMITTED

MAT\MIN ASSIGN FOR HOMEWORK IN TIMSS CLS
1 = FEWER THAN 15 MINUTES
2 = 15 TO 30 MINUTES
3 = 31 TO 60 MINUTES
4 = 61 TO 90 MINUTES
5 = MORE THAN 90 MINUTES
6 = LOGICALLY NOT APPLICABLE
9 = OMITTED

MAT\LIMIT\STDS WITH DIF ACADEMIC ABILITY
1 = NOT APPLICABLE
2 = NOT AT ALL
3 = A LITTLE
4 = SOME
5 = A LOT
9 = OMITTED

SCI\YES\WEEKLY TAUGHT OF SCI IN MINUTES
996 = LOGICALLY NOT APPLICABLE
999 = OMITTED

SYSTEM ID TEACHER FILE
99999 = OMITTED

SUBJECT ID
1 = TEACH TEACHES MATH TO THE SAMPLED STUDS
2 = TEACH TEACHES SCI TO THE SAMPLED STUDS
3 = TEACH TEACHES MATH AND SCI TO SAMPL STUD
9 = OMITTED

TEACHERS' MATH EDUCATIONAL EMPHASIS
1 = ED WITH A MAJ OR SPEC IN MATH
2 = ED WITH A MAJ OR SPEC IN SCI BUT NOT IN MATH
3 = MATH OR SCI MAJ OR SPEC WITHOUT A MAJ IN ED
4 = ED WITHOUT A MAJ OR SPEC IN MATH OR SCI
5 = OTHER
9 = OMITTED

TEACHERS' SCIENCE EDUCATIONAL EMPHASIS
1 = ED WITH A MAJ OR SPEC IN SCI
2 = ED WITH A MAJ OR SPEC IN MATH BUT NOT IN SCI
3 = SCI OR MATH MAJ OR SPEC WITHOUT A MAJ IN ED
4 = ED WITHOUT A MAJ OR SPEC IN SCI OR MATH
5 = OTHER
9 = OMITTED

FREQ OF COLLABORATION AMONG TEACHERS
1 = NEVER OR ALMOST NEVER
2 = 2 OR 3 TIMES PER MONTH
3 = AT LEAST WEEKLY
9 = OMITTED

CLASS SIZE FOR MATHEMATICS INSTRUCTION
1 = 1 TO 19
2 = 20 TO 32
3 = 33 OR MORE
9 = OMITTED

IDX TCH RPRT MAT CLS WO LIM FCTRS (MCFL)
1 = HIGH
2 = MEDIUM
3 = LOW
9 = OMITTED

0 = Grundschule
8 = Sonder-/ Förderschule

Status der Schule bei der Stichprobenziehung
0 = Originalschule
1 = 1. Ersatzschule
2 = 2. Ersatzschule

UNTERRICHTSFACH: MATHEMATIK
1 = JA
2 = NEIN
7 = NICHT BEARBEITBAR
8 = NICHT VALIDE
9 = AUSGELASSEN

WHAT TEACHING LICENCE
1 = FIRST AND SECOND TEACHER CERTIFICATE = FULL CERTIFICATE
2 = SPECIAL CERTIFICATE FOR TEACHERS FROM THE FORMER GDR
3 = TEACHING LICENCE FOR ONLY ONE SUBJECT
4 = OTHER
9 = OMITTED

MATHEMATICS - a
1 = YES
2 = NO
8 = nicht valide
9 = nicht bearbeitet

höchster Bildungsabschluss
1 = keine mittlere Reife/Fachhochschulreife/Hochschulreife
2 = mittlere Reife/Fachhochschulreife/Hochschulreife
3 = Abschluss Berufsschule/Berufsfachschule/Meister-Technikerschule/Schule des Gesundheitswesens
4 = Abschluss Fachhochschule/Berufsakademie/Hochschule
7 = nicht bearbeitbar
8 = nicht valide
9 = nicht bearbeitet

UNTERRICHTEN VON MATHE IN TIMSS-KLASSE - a
1 = Ja
2 = Nein
7 = Nicht bearbeitbar
8 = Nicht valide
9 = Nicht bearbeitet

UNTERRICHTSPRINZIPIEN\ENTDECKEND LERNEN - a
1 = Trifft gar nicht zu
2 = Trifft eher nicht zu
3 = Trifft eher zu
4 = Trifft genau zu
7 = Nicht bearbeitbar
8 = Nicht valide
9 = Nicht bearbeitet

UNTERRICHTSSTUNDEN PRO WOCHE
97 = NICHT BEARBEITBAR
98 = NICHT VALIDE
99 = AUSGELASSEN

BEEINTRÄCHTIGUNGEN\STÖRUNG DURCH SCHÜLER
1 = GAR NICHT
2 = KAUM
3 = ETWAS
4 = SEHR
7 = NICHT BEARBEITBAR
8 = NICHT VALIDE
9 = AUSGELASSEN

PROBLEME IN TIMSS-KLASSE\DROHENDES SCHULVERSAGEN
1 = TRIFFT GAR NICHT ZU
2 = TRIFFT EHER NICHT ZU
3 = TRIFFT EHER ZU
4 = TRIFFT GENAU ZU
7 = NICHT BEARBEITBAR
8 = NICHT VALIDE
9 = AUSGELASSEN

KOOPERATION\VORBEREITUNG EINZELNER UNTERRICHTSSTUNDEN
1 = NIE
2 = 1 BIS 2 MAL PRO SCHULHALBJAHR
3 = MONATLICH
4 = WÖCHENTLICH
5 = FAST JEDEN TAG
7 = NICHT BEARBEITBAR
8 = NICHT VALIDE
9 = AUSGELASSEN

FACHLICHER KONTAKT\BERUFSRELEVANTE INFORMATIONEN MITTEILEN
1 = NIE
2 = SELTEN
3 = HÄUFIG
4 = SEHR HÄUFIG
7 = NICHT BEARBEITBAR
8 = NICHT VALIDE
9 = AUSGELASSEN

PÄDAGOGISCHES PERSONAL WICHTIG\FÜR MICH - a
1 = Völlig unwichtig
2 = Eher unwichtig
3 = Eher wichtig
4 = Sehr wichtig
7 = Nicht bearbeitbar
8 = Nicht valide
9 = Ausgelassen

ERWARTUNGEN AN PÄDAGOGISCHES PERSONAL\BERATUNG DER LEHRKRÄFTE - a
1 = Trifft gar nicht zu
2 = Trifft eher nicht zu
3 = Trifft eher zu
4 = Trifft genau zu
7 = Nicht bearbeitbar
8 = Nicht valide
9 = Ausgelassen

KONTAKT ZU PÄD PERSONAL\SIE SELBST - a
1 = Nie
2 = Selten
3 = Häufig
4 = Sehr häufig
7 = Nicht bearbeitbar
8 = Nicht valide
9 = Ausgelassen

KOOPERATION DER TIMSS-KLASSE MIT FACHPERSONAL
1 = ETWA WÖCHENTLICH
2 = EINMAL ODER MEHRMALS IM MONAT
3 = ETWA VIERTELJÄHRLICH
4 = SELTENER
5 = NIE
7 = NICHT BEARBEITBAR
8 = NICHT VALIDE
9 = AUSGELASSEN

ZWECK DER KOOPERATION\KOMPENSATION - a
1 = TRIFFT GAR NICHT ZU
2 = TRIFFT EHER NICHT ZU
3 = TRIFFT EHER ZU
4 = TRIFFT GENAU ZU
7 = NICHT BEARBEITBAR
8 = NICHT VALIDE
9 = NICHT BEARBEITET

DATE OF BIRTH\YEAR
9999 = OMITTED

SEX OF STUDENT
1 = GIRL
2 = BOY
9 = OMITTED

TEST ADMINISTRATORS POSITION
1 = NATIONAL CENTER STAFF
2 = TCH FROM SCH,BUT NOT TCH OF SELECTED CLS
3 = OTHER
9 = OMITTED

LANGUAGE OF TESTING
1 = <TEST LANGUAGE>
2 = <CNTRY-SPEC>
9 = OMITTED

1 = MM4