GELECEĞİ YAKALA PROJESİ 21. YY. BECERİLERİ ETKİNLİK PLANLARI "Cartch the Future" Project Result | Page 21

“CATCH THE FUTURE ”ACTIVITY PLAN
given after the story told. In the meantime, the engineering design cycle is used. (The
span, height and table dimensions for the bridge are determined by the teacher and all
groups design according to these measurements.)
Span: the length at which the bridge fills the gap.
Height: the maximum height of objects that can pass under the bridge.
Surface: the surface where people and vehicles cross the bridge.
Each student in the group makes at least two bridge drawings individually. When
doing this drawing, he has to think about how the bridge could be more robust.
(Especially considers the effect of triangular girders on Bridge Design.) Then the
students in the group come together, discuss the prototype drawings they made and
choose one of them and model it with pasta.
Student groups briefly present them to other students after they have finished their
bridge designs. They tell us why they chose that design. Designed bridges are
photographed before, during, and after loading testing. (After the load test, the groups
will prepare a more comprehensive presentation using one of the different
presentation tools using these photos and the information they have obtained. In the
presentation, they will explain why they made that design, the positive and negative
aspects of their design and how they can improve their design.)
Bridges are then subjected to loading testing. The weight of the bridge is measured
and noted. The bridge is placed between two rows on the same level. The weight of
the rope or collar attached to the bridge is measured and noted. The weight of the
bucket is measured and noted. Weights to use (soft drinks boxes etc.)) are put in the
bucket respectively. How much weight the bridge can carry before cracking, breaking
or completely demolishing is observed, calculated and noted. During load testing,
forces acting on the bridge, aspects of the forces and balanced forces are discussed.
("Which parts of your bridge would you add support beams if you wanted to improve
at this stage?" the question can be asked.) The strength of the bridge (the total weight
it carries and can withstand, including its own pain) is calculated. Strength / weight
ratios are calculated. The larger the ratio, the better.
Strength = bridge + rope / leash + bucket + weights (all in grams)
Strength / weight ratio = strength (g) / weight of Bridge (g))
Figure
17
simülation
-
Phet Figure 18 – model of the
loading test
test
Figure 19 – Loading
[2017-1-TR01-KA101-037764] the “Catch the Future” Project under contract number Erasmus+ is supported by the European
Commission. However, the European Commission and the Turkish National Agency cannot be held responsible for the views
contained herein.