## Mathematics for Grades 4 and 8: Subscale Scores

### Content Subscales

Table 3. Average mathematics content domain scores of 4th-grade students, by education system: 2015
Education system Content domain
Number Geometric shapes and measures Data display
Average score s.e. Average score s.e. Average score s.e.

Average score is higher than U.S. average score at the .05 level of statistical significance.

Average score is lower than U.S. average score at the .05 level of statistical significance.

1 National Defined Population covers 90 to 95 percent of the National Target Population.

2 Met guidelines for sample participation rates only after replacement schools were included.

3 Nearly satisfied guidelines for sample participation rates after replacement schools were included.

4 The number in parentheses indicates years of school not grade in schooling.

5 National Defined Population covers less than 90 percent of the National Target Population (but at least 77 percent).

6 National Target Population does not include all of the International Target Population.

7 Reservations about reliability because the percentage of students with achievement too low for estimation exceeds 15 percent but does not exceed 25 percent.

8 Did not satisfy guidelines for sample participation rates.

NOTE: Education systems are ordered by 2015 average score in number. Education systems that are not countries are designated by the appended three-letter international abbreviation for their country. Participants that did not administer TIMSS at the target grade are not shown; see the international report for their results. U.S. state data are based on public school students only. The TIMSS scale centerpoint is set at 500 points and represents the mean of the overall achievement distribution in 1995. The TIMSS scale is the same in each administration; thus, a value of 500 in 2015 equals 500 in 1995. Standard error is abbreviated as s.e. For TIMSS 2015, Norway revised its assessed population to students in their 5th and 9th years of schooling to obtain better comparisons with Sweden and Finland. However, in previous TIMSS cycles Norway assessed students in their 4th and 8th years of schooling, which were defined as 4th and 8th grades but have been redefined as 3rd and 7th grades because year 1 in Norway is now considered the equivalent of a year of kindergarten. To maintain trend with previous TIMSS cycles, in 2015 Norway also collected data from students in their 4th and 8th years of schooling, which is used in trend tables.

SOURCE: International Association for the Evaluation of Educational Achievement (IEA), Trends in International Mathematics and Science Study (TIMSS), 2015.

TIMSS scale centerpoint 500 0.0 500 0.0 500 0.0
Singapore1 630 4.2 607 4.2 600 4.1
Hong Kong-CHN2 616 3.1 617 3.4 611 3.8
Korea, Republic of 610 2.6 610 2.3 607 2.6
Chinese Taipei-CHN 599 1.8 597 3.0 591 2.2
Japan 592 1.9 601 2.5 593 2.6
Northern Ireland-GBR3 574 3.1 566 3.3 567 3.8
Russian Federation 567 3.3 557 4.4 573 3.6
Kazakhstan 552 4.0 540 5.8 524 5.3
Ireland 551 2.2 542 2.9 548 3.8
England-GBR 547 3.2 542 3.3 552 3.2
United States1, 2 546 2.2 525 2.6 540 2.8
Belgium (Flemish)-BEL2 543 2.1 564 2.3 523 3.0
Norway (5)4 542 2.4 559 3.5 566 3.0
Portugal1 541 2.1 539 2.6 546 2.8
Lithuania1 538 2.6 526 3.0 540 3.6
Denmark1, 2 535 2.7 555 3.2 526 3.5
Poland 534 2.3 534 2.5 538 2.8
Finland 532 2.1 539 2.5 542 3.3
Netherlands2 531 2.2 522 1.9 539 3.4
Hungary 531 3.0 536 3.6 513 3.6
Bulgaria 529 4.6 525 5.9 504 7.6
Cyprus 528 2.5 524 2.8 507 3.8
Czech Republic 528 2.4 531 2.5 525 3.0
Serbia5 524 3.4 503 3.8 517 3.8
Germany 515 2.1 531 2.5 535 2.6
Sweden1 514 2.7 523 3.3 529 3.9
Slovenia 511 1.8 530 2.1 540 3.1
Italy1 510 2.4 503 2.8 498 2.9
Australia 509 3.1 527 3.3 533 3.6
Spain1 504 2.5 503 2.8 509 3.1
Canada1, 2, 6 503 2.4 517 2.5 528 2.7
Slovak Republic 502 2.4 491 2.6 496 3.8
Croatia 498 1.8 512 2.3 498 3.0
Turkey 489 3.2 475 3.0 476 3.4
New Zealand 485 2.7 489 2.8 506 2.9
France 483 3.0 503 3.0 476 3.1
Georgia6 483 3.5 429 4.6 435 4.4
United Arab Emirates 455 2.4 442 2.7 453 2.4
Chile 455 2.7 460 3.1 463 3.2
Bahrain1 453 1.7 447 1.9 454 2.3
Qatar 446 3.4 423 4.4 435 3.9
Iran, Islamic Republic of 435 3.2 428 3.5 416 3.2
Oman 423 2.6 430 2.9 414 2.6
Indonesia 399 3.6 394 4.2 385 4.2
Jordan 388 3.1 394 3.1 381 3.4
Saudi Arabia7 384 4.1 381 5.0 365 4.2
Morocco 381 3.3 385 3.8 351 4.2
Kuwait7 356 4.6 338 4.9 345 5.4
Benchmarking participants
Florida-USA6 556 4.9 529 5.6 541 6.1
Quebec-CAN8 533 4.2 542 4.6 541 5.0
Dubai-UAE 514 1.5 503 1.9 517 1.7
Ontario-CAN 500 2.6 526 2.9 536 2.6
Buenos Aires-ARG 445 2.9 403 3.2 411 3.4
Abu Dhabi-UAE1, 7 422 4.7 412 5.1 423 4.8