This is designed to assemble a plurality of logic gates on a learning tool to educate a large number of learners. The subject innovation is configured with a substrate assembly, each assembly of the basic elements constituting a logic circuit to a logic circuit, and means for combining the substrate in accordance with the logic circuit via the connection means of the device it to be connected to the electrical power system.; According to the present invention it is a digital logic gate circuit can learner assembly according easily squeeze the assembly period of each logic gate by hand. This can save a lot of time and precisely calculating the results. In particular, the Academy learning materials and provides easy access to digital technology etc. University, so it is possible to increase the learning effect. In addition, it is also possible to take advantage of the rides given to primary school students planted the engineering mindset.
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