Teaching aid is demonstrateed with financial document to financial affairs teaching

The utility model discloses a teaching aid is demonstrateed with financial document to financial affairs teaching relates to the teaching with show teaching aid technical field. It is including demonstrateing board, aspiration pump, first exhaust tube, second exhaust tube, third exhaust tube and valve, and first cavity and second cavity have been opened from top to bottom in proper order to show intralamellar part left side, open on the right side has the third cavity, show board uniform distribution has respectively the through -hole with first, second and third cavity intercommunication, the aspiration pump is fixed in the show on the board, and its extraction opening communicates first, second and third exhaust tube respectively, all be provided with the valve on first, second and the third exhaust tube, first, second and third exhaust tube all pass show board outer wall and respectively with first, second and third cavity intercommunication, three cavity below surface all is provided with the label on the