Educational boards from Masterkidz allow children to develop many abilities at the same time. Each board teaches children through various interesting topics how to function in society, allows them to learn about the world around us. We can have several boards and change them in a simple way, and special frames perfectly hold the board against the wall. Characteristics: - We can have several boards and change them in a simple way, and special frames perfectly hold the board against the wall. - The blackboard can also be used without frames, e.g. on a table or floor - Hearing is an important sense in our lives, thanks to this sense we talk to other people, listen to birds singing or a dog barking - when children touch any scene on the board, they will hear the appropriate sound - on the blackboard we will also find sound buttons with a high and low tone - looking at the wave charts, Children can hear the difference between them - the board also explains how sound travels in the air in the form of waves, our ears collect sound waves and then send vibrations as signals to the brain - on the board we will also find a transparent tube to show children how sound travels in the air - every time we turn on the sound on the board, the balls in the middle of the tube should move differently - the balls vibrate when sound waves pass through them - thanks to the children board can "see" the transmission of sound waves - the board also explains that the sound can have different volumes and we need to protect our ears when the environment is too loud - batteries are required to work The toy develops: - motor skills - hearing - sensory - eye-hand coordination - imagination - concentration - curiosity