Grade 8 Technology PAT Term 1: 2023
POSSIBLE SCENARIO
How does maize become maize meal? Before machines were invented
to grind or crush the seeds, it took a lot of hard work to make maize
meal.
Think about the following: How strong and stable the structure should
be? What materials and tools do you need to make the structure? How
easy will it be to make the structure? How hard and fast will the pestle hit
the floor? What is the mechanical advantage of the lever?
A family or a community or a business wants you to make meal or flour
from maize, wheat or another grain. They want a quick and easy way to
make the meal or flour that does not require a lot of hard work.
INVESTIGATE [15]
1. Evaluate: learners examine information on several complex
structures and list advantages and disadvantages in the designs
1
, 1.1 Which ideas or aspects of the ideas will you use in your own design?
Explain why.
……………………………………………………………………………………
…………………………………………………………………… [4]
Complete the table. Pay special attention to the last two rows of the
table on advantages and disadvantages [11]
Design A Design B Design C
Look at:
The shape and length of the levers and the pestles
The mechanisms that move the beams up and down
How strong and stable the structure is
How the different parts are assembled?
DESIGN BRIEF, SPECIFICATIONS and CONSTRAINTS [15]
2. Identify the design aspects:
a. What is it? (what is needed?)
b. Who it is for? (Target)
c. What it is for? (Function)
3. By making use of the above design aspects, complete the…
2
POSSIBLE SCENARIO
How does maize become maize meal? Before machines were invented
to grind or crush the seeds, it took a lot of hard work to make maize
meal.
Think about the following: How strong and stable the structure should
be? What materials and tools do you need to make the structure? How
easy will it be to make the structure? How hard and fast will the pestle hit
the floor? What is the mechanical advantage of the lever?
A family or a community or a business wants you to make meal or flour
from maize, wheat or another grain. They want a quick and easy way to
make the meal or flour that does not require a lot of hard work.
INVESTIGATE [15]
1. Evaluate: learners examine information on several complex
structures and list advantages and disadvantages in the designs
1
, 1.1 Which ideas or aspects of the ideas will you use in your own design?
Explain why.
……………………………………………………………………………………
…………………………………………………………………… [4]
Complete the table. Pay special attention to the last two rows of the
table on advantages and disadvantages [11]
Design A Design B Design C
Look at:
The shape and length of the levers and the pestles
The mechanisms that move the beams up and down
How strong and stable the structure is
How the different parts are assembled?
DESIGN BRIEF, SPECIFICATIONS and CONSTRAINTS [15]
2. Identify the design aspects:
a. What is it? (what is needed?)
b. Who it is for? (Target)
c. What it is for? (Function)
3. By making use of the above design aspects, complete the…
2
