you go through this checklist: http://www.cic.gc.ca/english/pdf/kits/forms/imm5612e.pdf
Schedule A: Background Declaration (IMM 5669) Completed, dated and signed by: • the principal applicant • spouse or common-law partner (whether they are accompanying or not) • each dependent child over the age of 18 years (whether they are accompanying or not)
Provide your detailed personal history in chronological order from the age of 18, or the past 10 years, whichever comes first. Do not leave any sections blank, or gaps in time. You must write "n/a" in any sections that are not applicable to your situation. Include all: • jobs, • periods of unemployment, • study, • vacations, or • being a homemaker.
Do not use abbreviations. Do not use general words such as "employee", "working", "manager." Specify your activity such as retail salesperson, architect, financial manager, etc. Note: If this section is not accurately completed, it will cause delays in the processing of your application.
IMM 5669 : http://www.cic.gc.ca/english/pdf/kits/forms/imm5669E.pdf
OMM