Supplementary exam would do the trick, I think.
But there´s no equivalent term there, so you would have to explain that is a test similar to the "compartment" examination the use in Secondary school in India.
In practice is an extra/additional test to give a second chance to one that failed the first attempt (not exactly the same test topics - same questions and answers - of course.)
Let´s explain it in numbers.http://sp4.colegiosvicentinos.com.br/si ... s/rc4.aspx
Firstly, the a student eligible to take the "extra exam" would be only the ones that couldn´t get the average mark. Let´s say in the "Vicentino school" here, the average mark needed is 6.0 out 10.0 in each exam (6,0 in Portuguese).
With four bimonthly exams the student needs to score 24 "points" (that is, 6 + 6 + 6 + 6).
In case his average is 3.8 not 6, he (almost) failed...but then, no!
In the eleventh hour, say a fortnight (two weeks) to the academical term be finished, and all that four exams taken he might cram up everything he studied along the year and...
Take the "extra/second chance test/additional test"
His scoring mark to pass must be:Média Final após estudos de recuperação = 6,2 + 3,8 = 10 ÷ 2 = 5,0 → aluno PROMOVIDO
Final test score (additional test) should be = 10 - 3.8 (his marks along of the year)= 6.2 He has to score 6.2 out of 10 to pass in the "final -extra- test."
This way his average score (with the additional test) would be = 5 (the minimum needed to pass), since 10/2 = 5
Should his average be 5.5 (22 points out of 40 along the year, 10 points to each exam).
Then he needs 10-5.5 = 4.5 in the additional test. (it´s worth noticing that the subject to be in the test is everything he studied along the year. What came up in the 1st, 2rd, 3rd and 4th exam.
I simplified things a bit, some schools sum up exams and weekly tests (then divide into 2), others might add points for behavior or participation in class etc.