Grade 5 homerooms have been visiting the Design Lab to create an extending grabbing arm. Students have enjoyed following the sequence of steps to build the basic arm, then developing their own concepts for the grabber, depending on what they wish to pick up. In the testing phase, different objects are assigned points depending on how difficult they are to pick up. Students also have an opportunity to refine their design’s durability and performance with other materials and techniques.
In the future, this activity could be developed further with links to math concepts, for example investigating the different acute and obtuse angles created by the arm. This design is really a prototype which could be further developed with lego Mindstorms or more advanced making techniques.