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PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G09B 7/02

of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student

Introduced: September 1968

Title

Titles differ between systems:

IPC: of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by the student

CPC: of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student

Full Title

Full titles differ between systems:

IPC:

Electrically-operated teaching apparatus or devices working with questions and answers > of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by the student

CPC:

Electrically-operated teaching apparatus or devices working with questions and answers (mechanically operated G09B3/00; computing arrangements G06F) > of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • G09B 7/04 characterised by modifying the teaching program in response to a wrong answer, e.g. repeating the question or supplying a further explanation IPC+CPC Available in IPC and CPC