How Do Senior High School Students in the Philippines Perform in a General Mathematics Test?

The PISA 2018 results placed 15-year old students in the Philippines near the bottom (outperforming only one country, the Dominican Republic) in its mathematics exam. These results show that mathematics education in the Philippines is failing in the first nine or ten years of basic education. Senior high school students in the Philippines are between 17 and 18 years of age and because of DepEd's K to 12, now have the opportunity of two more years of basic education. It is therefore important to see if these added years make a difference. With different tracks in senior high school in the Philippines, it is appropriate to gauge how students perform in a test that involves only general mathematics. With PISA, there is likewise a question of alignment between the test questions and the curriculum in Philippine schools. Thus, constructing an exam that is completely aligned with DepEd's K to 12 curriculum can avoid this problem. Leo Mamolo of Visayas State University did such an assessment and found dismal results. For an 80-item test, hardly no student answered half of the questions correctly.

The average score is 25 out of 80 (31% correct):

Above copied from
Mamolo, L. (2019). Analysis of Senior High School Students' Competency in General Mathematics. Universal Journal of Educational Research, 7(9), 1938–1944. doi:10.13189/ujer.2019.07091

Although students in technical-vocational-livelihood (TVL) tracks continue to study mathematics as a core course in senior high school, all fail the exam. Some students are even getting three out of every four questions wrong. There is clearly something wrong with mathematics education in the Philippines. DepEd's K to 12 is a failed educational system.