A distance learning device for providing laboratory instruction via two-way interaction with a student at a remote location and system for using same.

A system for assessing electrical wiring skills that includes an electrical assessment circuit for transmitting a unique power signal through each of the hot, neutral and ground wires in an electrical circuit, whereby correctness of wired connections can be detected and wiring defects can be reported with an identification of the specific wire or wires that are incorrectly connected.

A hand-made circuit board includes a substrate and a medium layer disposed on a surface of the substrate to form a pattern. The medium layer has a non-conductive zone configured with a plurality of electrical blocks. The electrical blocks are discontinuously distributed in the non-conductive zone, so that the electrical blocks on at least one cross-section of the non-conductive zone are not electrically connected. In addition, the medium layer has a conductive zone configured with a plurality of electrical blocks. The electrical blocks are continuously distributed in the conductive zone, so that the electrical blocks on at least one cross-section of the conductive zone are electrically connected.

An electronic building block system includes at least one set of power source modules (10) for supplying electric energy, at least one set of input modules (20) electrically connected to the power source modules (10) and used for inputting data and signals, at least one set of output modules (30) electrically connected to the power source modules (10) and used to receive data and signal control of the input modules (20) to output corresponding signals and at least one communication module (40) selectively connected to the power source modules (10); and the communication module (40) is connected or disconnected so that communication between the electronic building block system and an external terminal (50) is connected to or disconnected, so that the electronic building block system is in a non-programmable state or a programmable state. The electronic building block system is in the non-programmable state or the programmable state so as to meet actual use requirements of the electronic building block system by people at different experience levels.

An electronic building block set with a metal layer on the outer surface of each building block includes a main and an auxiliary building block. The top of the main building block includes plural main hollow posts, each with a main sensing contact, and has a main metal layer on the outer surface. The main sensing contacts and the main metal layer are electrically connected to opposite-polarity main electrode circuits respectively. The bottom of the auxiliary building block includes a first sensing element and has an auxiliary metal layer on the outer surface. The first sensing element and the auxiliary metal layer are electrically connected to opposite-polarity auxiliary electrode circuits respectively. When the building blocks are engaged, the first sensing element is electrically connected to the corresponding main sensing contact, and the auxiliary metal layer, to the main metal layer to enable electricity or signal transmission between the building blocks.

An electronic building block set with a metal layer on the outer surface of each building block includes a main and an auxiliary building block. The top of the main building block includes plural main hollow posts, each with a main sensing contact, and has a main metal layer on the outer surface. The main sensing contacts and the main metal layer are electrically connected to opposite-polarity main electrode circuits respectively. The bottom of the auxiliary building block includes a first sensing element and has an auxiliary metal layer on the outer surface. The first sensing element and the auxiliary metal layer are electrically connected to opposite-polarity auxiliary electrode circuits respectively. When the building blocks are engaged, the first sensing element is electrically connected to the corresponding main sensing contact, and the auxiliary metal layer, to the main metal layer to enable electricity or signal transmission between the building blocks.

A computing device may include a display, a memory to store electronic textbook data comprising at least one configurable problem to be solved for a system having a plurality of different parameters, a user input device, and a processor coupled to the display, the memory, and the user input device. The processor may be configured to display the electronic textbook data with the at least one configurable problem on the display, selectively change at least one of the parameters of the system to define a new solution for the at least one configurable problem based upon the user input device, and display the new solution on the display.

A computing device may include a display, a memory to store electronic textbook data comprising at least one configurable problem to be solved using a given solution technique from among a plurality of different solution techniques, a user input device, and a processor coupled to the display, the memory, and the user input device. The processor may be configured to display the electronic textbook data with the at least one configurable problem on the display, selectively change the given solution technique for the at least one configurable problem based upon the user input device, and display a solution for the at least one configurable problem on the display responsive to the change in the given solution technique.

Systems and methods for educational electronics devices such as may be assembled by non-manufacturer builders, including by personal or hobbyist individuals and by groups such as clubs or classes. Methods and systems relate to Surface Mount Device (SMD) use, measurement systems, communications skill acquisition, physical construction of educational electronics, builder construction/configuration and maintenance of devices, subsystem componentry designed for effective use in educational electronics, circuit designs that permit individual builders to construct professional quality devices, and cognitively adapted methods and systems to optimize learning and performance during and after builder assembly.

Systems and methods for educational electronics devices such as may be assembled by non-manufacturer builders, including by personal or hobbyist individuals and by groups such as clubs or classes. Methods and systems relate to Surface Mount Device (SMD) use, measurement systems, communications skill acquisition, physical construction of educational electronics, builder construction/configuration and maintenance of devices, subsystem componentry designed for effective use in educational electronics, circuit designs that permit individual builders to construct professional quality devices, and cognitively adapted methods and systems to optimize learning and performance during and after builder assembly.