Jee Yeon Park began their design technology project by measuring and marking out the circular base with a compass. They then cut the base from plywood using a crosscut saw and jigsaw. The jigsaw allowed them to quickly cut the circular shape. Since the jigsaw left some rough edges, Jee Yeon used a disk sander to smoothly sand the sides. They felt they gained knowledge using different tools, including new machines like the jigsaw, and took risks in their work.

1. Design Technology Process Journal
th
Date: January, 14 , 2011
Name: Jee Yeon Park
Title: Beginning my project
Measuring and Marking out the base
Today, I started to begin my project. I went into the
workshop and began to choose the type of wood
that I wanted. First, I decided to measure and mark
out the base. My base required plywood and the
size of the base was 300x300x30. Since my base
was in a shape of a round circle, I had to use the
compass to measure and mark out. At first, I
stretched out the compass in the measurement of
150, which is the radius of my base. While marking
the base, I was had to use a metal rule and pencil to
make the piece of the base accurately. When I was able to make a thick line for the base, I started to go
to the next stage, cutting.
Cutting the base with the jigsaw
After measuring and marking out the base, I was able to go to the next stage where it was the cutting
stage. At first, I used the crosscut to cut a straight line so that my base was cut from the big piece of
plywood. It was my first time to use the crosscut and this tool helped me to cut a big piece of wood with
ease. When I got the square size of the plywood, which had the circle drawing of my base, I was able to
use the jigsaw machine to cut out the circle. In today’s lesson, I learnt this new machine called ‘jigsaw
machine’. This machine was used for cutting a thick piece of wood with short amount of time. Rather
than cutting the circle with a coping saw, making us to spend more time, we were introduced to the new
machine so that we could use the time wisely. I thought that this machine was helpful because I could
get my base cut really quickly. When I was done cutting with the use of the jigsaw machine, I started to
go the next stage, sanding.
Sanding with a disk sander
Since the jigsaw machine didn't help me to cut the base accurate, I had some parts where it was rough
and bumpy. In order to make the surface smoother, I used the disk sander. Disk sander was much faster
than sanding with a sand paper with my hands. While I was using the disk sander, I was wearing an eye-

2. goggle to prevent dust entering in my eyes. In a short amount of time, I was able to finish sanding the
side of my base.
IB Learner Profile & AOI
From today’s lesson, I was able to finish cutting out my base. I think I was knowledgeable and risk taker
because I was able to use different kinds of tools and new machines. I used the compass to measure
and mark out the base. Also, I was able to use the new machine called jigsaw machine so that I could
reduce the amount of time spending to cut my base. I think the lesson that I had today was related to
human ingenuity because I started to create my project with variety of kinds of tools and materials.