t be able to practically carry out the activity of planting and to recognize the importance of oak trees in Croatian tradition and ecological system. Knowledge: Students will be able to recognize the importance of planting trees for healthier environment and  importance of oak trees in Croatian tradition.  Psychomotor skills: Students will be able to preform all activities connected to planting a tree. Application: Students will be able to apply information about planting and importance of oaks in their work and life. Evaluation: Students will discuss about their satisfaction during group activity and final product - making European Green Alley. They will put their impressions on padlet or linoit interactive digital tool. Affective learning outcomes: Students will learn how to cooperate in teams and recognize the value of work where everyone contributes in his own way. They will develop positive attitude towards ecological problem and recognize awareness of individual contribution to problem of polluted environment.