Subjects
Mathematics
Grade
3–5
6–8
Brief Description
Students estimate the weight and circumference of three pumpkins, predict the relationship of pumpkin size to number of ribs and seeds, and then test their predictions.
Objectives
Students will
Keywords
math, Halloween, estimation, prediction, probability, measurement,
Materials Needed
Lesson Plan
Display for students three pumpkins of different sizes. Pass the pumpkins around the room. Invite students to hold each pumpkin and estimate its weight. Have students record their estimations.
Weigh the three pumpkins. Ask: How close are the actual weights of the pumpkins to your estimations? Encourage students to create a chart to show that comparison.
Measure the circumference of the three pumpkins. Ask: Does the heaviest pumpkin have the largest circumference? Help students compare the pumpkins by weight and circumference.
Encourage students to find the relationship between the size of each pumpkin and the number of ribs it has. Ask: How can that relationship be expressed?
Invite students to predict how many seeds each pumpkin contains, and have them record their predictions. Ask: Which pumpkin do you think will have the most seeds?
Arrange students into three groups. Cut the tops off the pumpkins and give one pumpkin to each group of students. Have students in each group remove the pulp from their pumpkin, count the seeds, and record the results. Have one member of each group report its results to the class. Ask: How close to the actual number of seeds was your prediction -- for the smallest pumpkin? for the largest pumpkin? for the middle-sized pumpkin? Award a small price to the three students whose predictions are closest.
Extension Activity: Encourage students to weigh and measure pumpkins at home, record the results, and record the results on a class chart of pumpkin weights and measurements. Ask: What conclusions can you draw from the chart about the relationship between weight and circumference?
Assessment
Assess students based on their participation in the activity and the reasonableness of their predictions and estimations.
Lesson Plan Source
EducationWorld.com
Submitted By
Gary Hopkins
Education World®
Copyright© 2010, 2016 Education World
Last updated 9/30/2016
|
Sign up for our free weekly newsletter and receive
top education news, lesson ideas, teaching tips and more!
No thanks, I don't need to stay current on what works in education!
COPYRIGHT 1996-2016 BY EDUCATION WORLD, INC. ALL RIGHTS RESERVED.
COPYRIGHT 1996 - 2024 BY EDUCATION WORLD, INC. ALL RIGHTS RESERVED.