Mathematics Teacher (1998) Vol. 91, No. 9
!i'ffl&JUIXJ!ff!i'ffl&JU/J@@NAT I 0 N ... A L U!ffiiJ@/XJ!ff/2 COUNCIL OF JANUARY 1998 Volume 91 Number 1 TEACHERS OF MATHEMATICS • LEWIS CARROLL • PERFECT ROLLERS Tf c; ated the Galculatm-Based Rangrr (CBR }, an intelligent motion detector that makes collecting and analyzing data faster: easier and mote acc1uate than
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