Calculating continuous assessment (CA) averages accurately is very important aspect for tracking student academic performance and ensuring compliance with the Nigerian National Policy on Educational form.
Whether you are a classroom teacher managing a term broadsheet, a school administrator audit checking final marks, or a parent evaluating a report card, understanding the mathematical breakdown of CA Score prevents calculating errors and keeps grading systems highly transparent
In the Nigerian secondary school system (Junior Secondary and Senior Secondary), terminal grades are divided into normal two main parts: The Continuous Assessment (60%) for junior classes and the Terminal Examination (40%). Also, Continuous Assessment (30%) for senior classes and the Terminal Examination (70%) based on Nigerian Secondary school method of calculating CA
Standard CA score Systems in Nigeria The distribution of terminal marks depends on the method of secondary education and specific state ministry guidelines:
In Icon of stars college|full details on how to calculate students CA from JSS1 to SS1 ( Simplemethd11 Series 1)
JSS1 - JSS3 Cat 1 = 60%
Break - down
Test 1 = 10 marks
Assignments = 10 marks
Attendance = 10 marks
SS1
SS1 - SS3 Cat 1 = 30%
Break - down
Test 1 = 10 marks
Assignments = 5 marks
1.Apply the Mathematical Formula
To find the final CA score, use this two step formulae:
Sum of Marked obtain
raw percentage -------------------------------------x100
Sum of total outcome
Total raw score
Final scale CA ------------------------------- x 40
100
Part 1: Let us calculate the final CA score for a student in JSS1 who scored a particular. the following marks in Mathematics: Ukpono Udeme CAT 1
- Assignment 1: 8 out of 10
- Class Test 1: 7 out of 10
- Attendance: 8 out of 10
Step 1: Add the scores
Total marks obtained = 8 + 7 + 8= 23
Step 2: Convert to percentage
23
Raw percentage -------------------x 100%
30
2300
= -------------------------%
30
76.67%
Step 3: Scale to the school's 30% CA weight
76.67
Final scale CA Score =( ------------- x 30)
100
23001
= ---------------------
100
= 23
Out of the maximum 30 available for CA, the student marks is 23.
Mathematics: Ukpono Udeme CAT 2
- Assignment 1: 10 out of 10
- Class Test 1: 9 out of 10
- Attendance: 9 out of 10
Step 1:Add the scores
Total marks = 10 + 9+ 9= 28
Step 2: change to percentage
28
Raw percentage -------------------x 100%
30
2800
= -------------------------%
30
93.33%
Step 3: Scale to the school's 30% CA weight
93.33
Final scale CA Score =( ------------- x 30%)
100
2799.9
= --------------------- %
100
= 28%
Out of the maximum 30 points available for CA, the student earned 28 points.
2. To find the overall terminal grade,average the cumulative CA scores and add them directly to the final exam score. If Ukpono Udeme's average CA score across assessments is 25.5 points and the student scores 55.5 out of 70% in the final exam
Final marks = scale CA Score+ Exam score
= 25.5 + 55.5
= 81%
According to the standard [West African Examinations Council (WAEC)](https://en.wikipedia.org/wiki/West_African_Senior_School_Certificate Examination) grading scale, an overall score of 81% falls safely into the A1 (Excellent) category (77.5% - 100%).
If you are a class room or subject teacher compiling terminal broadsheets, add all calculated subject averages for an individual student together, then divide by the total number of subjects taken to determine their terminal position or cumulative Grade Point Average (GPA)
Part 2: Calculating SS1 Marks for Goodness Victor (Simplemethd11 Series 1)
For Senior Secondary , assume the terminal assessment utilizes a distinct localized structural weight where CAT 1 and CAT 2 each is always per 15% per CAT of the overall continuous grading layout (totaling 30% CA carries).
Senior Assessment 1 (CAT 1)
- Assignment 1: 5 out of 5
- Class Test 1: 9 out of 10
- Step 1: Sum the scores
Step 1: Add the scores
Total marks obtained = 5 + 9= 14
Step 2: change to percentage
14
Raw percentage -------------------x 100%
15
1400
= -------------------------%
15
93.33%
Step 3: Scale to the school's 15 % CA weight
93.33
Final scale CA Score =( ------------- x 15%)
100
1399.95
= ---------------------
100
= 14
Out of the maximum 15 points available for CA, the student earned 14 marks.
Senior Assessment 2 (CAT 2)
- Assignment 1: 5 out of 5
- Class Test 1: 10 out of 10
Step 1: calculate the total the scores
Total marks obtained = 5 + 10= 15
Step 2: Convert to percentage
15
Raw percentage -------------------x 100%
15
1500
= -------------------------
15
100%
Step 3: Scale to the school's 30% CA weight
100
Final scale CA Score =( ------------- x 15%)
100
2799.9
= --------------------- %
100
= 15%
Out of the maximum 15 points available for CA, the student earned 15. Scores.
2. Combine CA with Examination Scores
To find the overall terminal grade, add the scaled CA score directly to the scaled exam score. If the exam is marked out of 70%, and the student scores 66:
Final marks = scale CA Score+ Exam score
= 14 + 15 + 66
= 95 %
According to the standard Nigerian secondary school grading system, a score of 95% falls into the A1 (Excellence) category, depending on West African Examinations Council (WAEC) standards.
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