Besides showing your columns in different tabs in the same class , you can also link a column across classes
Open the target class, then:
- Add a new Calculation Column > Formula
- Give the header a name such as "Column from Biology" to identify it clearly.
- Tap on the Formula tag, select the class, source of the column, Biology

Select the desired tab for example, 2nd Semesterand once in it, select the desired column.
Make sure that the Grade type is the same as in the source column, if you like to have the same values in both columns
In our example we will copy the column Test 1 from Biology Sample 101 > 1st Semester to 11gD3 > 1stQ
See below the detailed procedure.

Here is the linked column from Biology 101 class

Link non-numeric grades across classes
If the linked column has its source in a non-numeric grade, Project 1 in our example, some small differences apply.
The procedure is the same as shown before, but the formula has no Integer function applied , and the second difference is that the result is not exactly what we expected.
See below those differences:

Two more steps are needed to have the non numerical grading column ready.
- Create a new Calculation > Addition - Total points grading column, select Simple Addition and click on the Project 1 Header, save the configuration.
- Tap and hold on the new columns header, select edit , change the Grade type Result to Text grades A to F , save and this is it.
The animation below shows these final steps :

And here is the Text grade column linked to the Biology class
