Introduction to structures  (Page 4/5)

1. How many sides does the box have?
2. How many pairs of opposite sides does the box have?

(c) How many edges does the box have?

1. How many corners does the box have?
2. How many flaps does the box have?

[LO 1.3]

Assignment 18B

Open up the box carefully by folding out the flaps and tearing along the joints. Iron the piece of cardboard and place it face down on an A4 page.

[LO 1.13]

Assignmentent 18C

Draw the net (shape of the box folded open) on this page. Indicate the outer lines by means of solid lines and the folding lines by means of dotted lines. Mark the sides that are the same length with corresponding letters, and indicate the corresponding flaps by means of identical numbers, i.e. indicate the “pairs” (see example).

[LO 1.12]

Assignment 19

Paste the net facing upwards on an A4 page. Write the following captions on the page:

Heading : Information on packaging.

Captions : Name of product, manufacturer, description of product, mass or content, instructions, contact address, ingredients.

BACKGROUND

The information on the first packaging was applied by hand, and must have taken quite some time. Even the paper used for the packaging was hand-made.

At the end of the 15th century machines were built to manufacture paper and to decorate it with colourful designs. Packaging became cheaper and more suitable for commercial purposes.

Nowadays large manufacturers do their own packaging, using machines that do not only make the packaging, but also weigh the contents going into the container, as well as filling and sealing it.

Assignment 20

Do you know how paper is made? Supply the following sketch with the appropriate letters, referring to the description printed below. Write the letters in the numbered square.

1. A large roll of paper is obtained.
2. The pulp is mixed with bleaching agents.
3. The paper is heated by means of rollers so that it can dry.
4. The pulp is shaken to make the fibres cling together.
5. Rollers squeeze out the pulp to remove the remaining water and compress it further.

[LO 3.1]

Assignment 21

To the teacher:

Plan an outing with your learners to a local printing company or a factory where packing material is manufactured.

[LO 3.1]

BACKGROUND

A container is the most general form of packaging. The first containers were made of wood, but as it was difficult to print information on wood, the printing was done on paper and then pasted onto the wood. Nowadays cardboard containers are the most popular. The information can be applied directly onto the cardboard material.

Modern cardboard boxes are designed in many interesting shapes and sizes. Not only is the information on the cardboard boxes applied in an innovative fashion, but also the shapes of the cardboard boxes are impressive themselves.

Which shape is most commonly used for cardboard boxes?

Nowadays certain food companies package their products in decorated tins, as tins have also become collector’s items. In such cases the item might often not be purchased for its contents, but for the packaging!

After decorated cookie tins had been made in the 1800’s, people began to realise that tins make ideal containers for storing food. That is how the canning industry started. Paper labels are applied to the cans and discarded after use.