▁sem in ars ▁take ▁place ▁during ▁school ▁projects , ▁curr icul um ▁days , ▁after ▁school ▁activities ▁or ▁during ▁ordinary ▁classes . ▁“ The ▁university ▁students ▁contribute ▁their ▁time ▁and ▁knowledge ▁to ▁the ▁schools ” ▁remarks ▁the ▁principal ▁of ▁one ▁school , ▁Man fred ▁St reich . ▁ ▁History ▁▁ ▁“ Student en ▁mach en ▁Schule ” ▁was ▁founded ▁in ▁ 2 0 0 7 ▁by ▁Robert ▁Gre ve , ▁Jas min ▁Bild ik ▁and ▁Lisa ▁Stock . ▁The ▁three ▁student ▁teachers ▁discovered ▁the ▁opportunity ▁to ▁teach ▁scholar ly ▁techniques ▁at ▁Berlin ▁grammar ▁schools ▁to ▁prepare ▁gradu ates ▁for ▁their ▁last ▁exam ▁– ▁an ▁academic ▁presentation . ▁ ▁After ▁a ▁constant ▁expansion ▁of ▁the ▁sem in ars ▁and ▁a ▁rapid ▁growth ▁in ▁resource ▁in ▁Berlin ▁the ▁program ▁started ▁in ▁Hamburg ▁and ▁Brandenburg ▁in ▁ 2 0 1 0 ▁as ▁well ▁as ▁in ▁H esse ▁in ▁ 2 0 1 1 . ▁ ▁Pres ent ▁Ach iev ements ▁▁ ▁Only ▁four ▁years ▁after ▁the ▁foundation ▁of ▁“ Student en ▁mach en ▁Schule ” ▁the ▁program ▁has ▁ 1 5 0 ▁partner ▁schools ▁and ▁about ▁ 8 0 ▁student ▁teachers ▁are ▁en rolled . ▁E ight ▁employees ▁work ▁in ▁the ▁offices ▁and ▁about ▁ 2 5 , 0 0 0 ▁students ▁have ▁been ▁trained ▁in ▁the ▁sem in ars . ▁ ▁About ▁ 9 5 % ▁of ▁the ▁partner ▁schools ▁book ▁sem in ars ▁in ▁the ▁following ▁year ▁for ▁the ▁next ▁generation ▁of ▁students . ▁In ▁prepar ation ▁for ▁a ▁scholar ly ▁monitoring ▁of ▁the