The Learn-Lean A3 History Box represents a useful supplement and add-on of the A3 Problem Solving Block.

The tabs of the A3 Problem Solving sheets can be teared off, thus serving as a register when you create an archive.

By means of a fixing device on front of the History Box you will be able to complete an open A3 Problem Solving Block directly at the board.

The A3 problem solving method is the powerful tool for a structured problem solving approach and root cause analysis.

We recommend the use of the 7 magnetic method cards with included collection box to support and complete the A3 method. Each of the 7 method cards describes an approved problem solving method. Cards, collection box, and History Box are magnet-adhering, representing an all-in system.

The History Box is intended for archiving finished A3 sheets. Finished A3 sheets may serve as a source of inspiration for solving current problems. By tearing off the tabs of the A3 Problem Solving sheets they serve as index when you establish an archive in the History Box.

By means of a fixing device on front of the history box you will be able to complete the A3 Problem Solving Book directly at the board.

The History Box can be simply affixed on a magnetic surface. The fits with the two attachment points of the History Box. So the and History Box form a unit.