▁to ▁be ▁too ▁complex ▁for ▁students ▁of ▁some ▁groups ▁to ▁justify . ▁Instead , ▁the ▁teacher ▁is ▁given ▁a ▁chapter ▁on ▁different ▁ways ▁to ▁compute ▁the ▁median . ▁Stud ents ▁using ▁this ▁curr icul um ▁could ▁easily ▁perform ▁the ▁calculation . ▁It ▁is ▁important , ▁however , ▁to ▁develop ▁the ▁underlying ▁reasoning ▁along ▁with ▁the ▁procedure , ▁which ▁is ▁done ▁further ▁into ▁the ▁data ▁module ▁rather ▁than ▁at ▁the ▁beginning . ▁ ▁Stud ents ▁who ▁demonstrate ▁knowledge ▁of ▁a ▁standard ▁method ▁of ▁calculation ▁are ▁encourag ed ▁to ▁demonstrate ▁at ▁least ▁one ▁other ▁method ▁of ▁calculation , ▁in ▁order ▁to ▁demonstrate ▁a ▁complete ▁understanding ▁of ▁the ▁operation ▁and ▁numbers ▁involved . ▁Stud ents ▁who ▁are ▁later ▁taught ▁' standard ' ▁methods ▁can ▁be ▁ready ▁to ▁compare ▁and ▁contrast ▁methods , ▁and ▁be ▁able ▁to ▁flex ibly ▁move ▁among ▁their ▁options . ▁ ▁Stud ents ▁are ▁asked ▁to ▁compute ▁the ▁volume ▁of ▁a ▁rect angular ▁solid . ▁They ▁are ▁do ▁not ▁immediately ▁use ▁and ▁are ▁not ▁told ▁the ▁standard ▁formula ▁of ▁length ▁multip lied ▁by ▁width ▁and ▁height . ▁This ▁formula , ▁which ▁is ▁the ▁formula ▁given ▁on ▁standard ized ▁tests ▁such ▁as ▁the ▁S AT , ▁is ▁developed ▁as ▁a ▁connection ▁to ▁previous ▁work ▁with ▁multiplication , ▁area , ▁and ▁the ▁associ ative ▁property . ▁ ▁Par ody ▁ ▁The ▁text book ▁series ▁has ▁been ▁par od ied ▁by ▁the ▁on - line ▁cart oon ▁series ▁" We ap ons ▁of ▁Math ▁Dest ruction ", ▁including ▁one ▁panel ▁of ▁a ▁student ▁declaring ▁that ▁he