There are very few experiments that you can build with few components. There are many unspannende fundamentals and basic experiments (according to the scheme: the motor rotates faster if I increase the voltage?). Since there is no enthusiasm for the subject comes to electronics. An alarm with a funzeligen LED, instead of a squealing Lausprecher - which is more than bleak.
The Gefrickel with the cables is unreasonable and would allow no more complex circuits. I have for my son learning Packt a plug board ("breadboard") supplemented for 5 euros. So you could build the experiments halfway reasonable.
For 15 euros, I would have to go through the learning package as electronics taster package. For 30 euros I expected a lot more.
For this bad buy there is only one point!
My tip: We have now bought a real experimentation box with plug-in system for 60 euros. So you can work and the young have fun and sense of achievement. My son is building so autonomously transistor circuits and knows by now without all too much theory, why you need a capacitor.
Detlef G.