Mariano Marcos State University
COLLEGE OF TEACHER EDUCATION
Laoag City
Name: ___________________________________ Date of Submission: ___________
Activity 15. Investigating the Most Economical Box
Objectives: a) To construct open-top rectangular boxes
b) To determine their volume and surface area
c) To decide on the most economical box
Materials: pair of scissors, tape or paste
Procedure:
Mathy, a determined student candy maker needs boxes with open tops.
With volume as basis, she has to decide which box will she prepare to be
most economical. Help Mathy make a sound decision.
1. Using 81/2" by 11" pieces of graph papers, perform an investigation
activity.
2. First cut squares in each corner. Fold up the sides to form open-
topped boxes. Tape the edges of the boxes. Identify the dimensions
of the cut square and the box produced.
3. Record the dimensions in the table below.
4. Compute the total surface area and volume of the box.
Side length of
squares cut from
the corners
Box length Box width Box height Box Volume Box Surface
Area
Which is the most economical box? Why?
