Painting on blackboard 对比 Quadro Negro 99 的使用情况和统计数据

You can put an addition or subtraction, or any mathematical operation to learn like at school, or let him draw to improve their creativity. You can also create notes to remember things or to send to your friends. You can share them with any social network or messaging application. CHARACTERISTICS: - Chalk of any color. - Draft. - Resize chalk. - Delete the entire board. - Share what you've done. Thank you for using this app if you like do not hesitate to rate it in the App Store, so you will help us to improve and to create new apps, thank you very much!