Grade/Age: >10[br][br]Topic/Subject area: Mathematics [br][br]Duration: 1x 50 min. [br][br]Number of the students: 25[br][br]Single work/Team work: single work + teams of 2

Description: teacher Teacher uses the App: https://www.geogebra.org/m/qvc7dewf[br]Students need to find the piece and the two surfaces which area is calculated[br][br]Pressing the refresh button (top right) creates a new LF piece[br][br]Beneficial: The teacher shows the object on a beamer in the classroom, the students are all in front of the teacher, the LF pieces are at the back of the classroom[br]OR[br]Students see the LF piece on the small screen of the teacher's computer, must remember the piece, and then search for it

ID of the exercise: 2019-1-HU01-KA201-0612722019-1