In order to explain the ecological approach in the learning process, we. present its underlying principles and analyse them in relation to existing learning design frameworks. To formalize. our approach, we define the basic concepts and propose a general framework for constructing learning paths.
Most women need 20-25 units for the treatment of frown lines. However, men may need 35 units because the bulk of muscle to be weakened is larger. BotoxÂ® prices nationwide average between $10 and $15 per unit.
If it takes 75 units of BotoxÂ® to weaken forehead muscles, you could expect to pay $750 to $1,125 for it. The cost of BotoxÂ® depends upon how many units are injected, the technique of injection, and geography.f it takes 75 units of BotoxÂ® to weaken forehead muscles, you could expect to pay $750 to $1,125 for it. The cost of BotoxÂ® depends upon how many units are injected, the technique of injection, and geography.