digestive implementation average experiment future teacher instructional motivated source outcome systematic then CONCLUSIONS teaching increasing interest researcher knowledge next proposed attractive sidikalang finding additional science proces some result biology student wa stated validated learning research ability improve aspect expert significantly control recommendation graffiti design able readability using grade higher concluded SMA validation topic previously showing implementing media alternative RECOMMENDATIONS CHAPTER used system reached worksheet benefit study resource about their increase performance own feedback clas especially caused based independently school than presentation follow image human handbook new conducted develop activitie stimulate prospective conclusion XI learn asses it criteria completenes minimum effect outlined material instruction had information