The teacher will write at the top of chart paper "Estimate the circumference of our pumpkin. Look at the sample chart attachment. "Class, October (November) is the month of pumpkins." "There are many pumpkins in the fields." "There are many pumpkins in the supermarkets." "There are pumpkins in all the houses." "Today we are going to estimate the circumference of OUR pumpkin." "Look at our pumpkin." "What is its circumference?" Each student gets a long piece of yarn and scissors. "Everyone has yarn and scissors." "Now YOU are going to estimate the circumference." "YOU are going to cut the yarn." "Are you going to cut it long?" "Are you going to cut it short?" "Are you going to cut it to the exact size?" "What is the circumference of the pumpkin?" "Now, cut your yarn!" "Letís put your name on the yarn." The teacher puts a piece of masking tape around the piece of yarn and writes each studentís name on his/her tape. "Now give me your yarn." The students give their yarn to the teacher. "Class, letís measure the pumpkin." The teacher will put the yarn pieces around the pumpkin to see if the estimations are correct. "Paulís yarn ‚ Is it long, is it short, is it almost exact, or is it EXACT, class?" The class answers. On the chart paper, the teacher has four categories: short, long, almost exact and EXACT. The teacher puts the yarn on the chart paper, strand by strand, with tape. Finally, the teacher finishes and says: "Class, which is the shortest yarn?" The class answers: "Anthonyís yarn is the shortest yarn." Then the teacher says: "Class, which is the longest yarn?" And the class answers: "Vickyís yarn is the longest yarn." The teacher asks: "And, finally, class, which is the most EXACT yarn?" And the teacher takes the most exact strand of yarn from the "almost exact" or from the "exact" bunch, places it on the pumpkin, and awards a prize to the student who had the best guess. "Victor wins! Victor has the most exact strand of yarn!"