Prior to beginning the lesson: (1) Photocopy the Problem of the Day
onto transparency paper for the overhead projector; (2) Photocopy Candy Fractions Activity Sheet
(1 per student).
Students will be able to:
Problem of the Day
Identify Numerator and Denominator.
Identify and write fractions 1/2, 1/3, 1/4, 1/6, 1/8, and 1/10.
(see attachment), Candy Fractions Activity Sheet
(see attachment), Reese’s Peanut Butter Cups (1 per 2 students), gummy worms (1 per 3 students), Kit Kat Bars (1 per 4 students), Hershey’s Bars (1 per 6 students), Fruit Roll-Ups (1 per 8 students), licorice (1 per 10 students), overhead projector
Lesson Introduction: Display Problem of the Day
on the overhead projector. Ask students: What strategy should we use to solve this problem?
Guide them towards draw a picture. Solve the problem together as a class. Students can copy problem and solution into math notebooks.
Show students the candy they will taste. Tell students: Today, you will taste all of these candies. There is one problem. I do not have enough of each candy for everyone. What can we do to make sure everyone gets to taste each candy? Guide students to answer cut them into smaller pieces, so that each person gets a fraction.
Distribute Candy Fractions Activity Sheet to each student.
Call two students to the front of the room and show them a Reese’s Peanut Butter Cup. Ask students: How should we cut the candy? What fraction of the candy will each student eat? Repeat until each student has had a chance to come up and eat one-half of a peanut butter cup. Direct students to complete appropriate section of the Candy Fractions Activity Sheet.
Call three students to the front of the room and show them a gummy worm. Ask students: How should we cut the candy? What fraction of the candy will each student eat? Repeat until each student has had a chance to come up and eat one-third of a gummy worm. Direct students to complete appropriate section of the Candy Fractions Activity Sheet.
Repeat the same procedure for each of the remaining candies, dividing the Kit Kat bars into fourths, Hershey bars into sixths, the Fruit Roll-Ups into eighths, and the licorice into tenths.
Direct students to finish completing the remainder of the Candy Fraction Activity Sheet.
Modifications: For students with special needs, allow extra time to answer questions and provide one-on-one assistance when necessary.
Teacher should monitor student participation and independent work to ensure all students understand the concept.
Benchmark or Standards:
National Council of Teachers of Mathematics (NCTM) Number and Operations Standard:
Develop a sense of whole numbers and represent and use them in flexible ways, including relating, composing, and decomposing numbers.
Understand and represent commonly used fractions, such as 1/4, 1/3, and 1/2.
National Council of Teachers of Mathematics (NCTM) Process Standard:
Build new mathematical knowledge through problem solving.
Apply and adapt a variety of appropriate strategies to solve problems.
Communicate their mathematical thinking coherently and clearly to peers, teachers, and others.
Recognize and apply mathematics in contexts outside of mathematics.