It was a bright summer afternoon on the 17th day of June. The day of Pearland Volunteers second robotics
lesson for the willing youth was ready to commence. Our slides were prepared. Our examples ready, and our lego robotics kits ready for building. The plan we set was to construct a thorough teaching about the mechanisms of Gears and belts; more specifically, our goal in this class was to bestow the knowledge of gear ratios and
gear trains upon the students, as well as some real world implications, and then after, we
introduced two hands on exercises. The first was the fan exercise, the exercise where they have to create a fan, which applies the previous concept of gear ratios, to see which is able to make a configuration that produces the fastest spinning fan.
The second was the lift of the weights, where we made them create robots to lift weights. Since we had taught them that torque and speed are inverse when power is constant, this challenge required the students to build a gear system that spins as slow as possible, which resulted in the success of lifting small weighted discs, of around 2-5 pounds.
Volunteers (4Hrs): Chenyu Jin
Volunteers (3Hrs): Shaotan Liu, Junxi Ding, Ethan Gao, Grace JiParents on Duty: Yuqiao (Chenyu Jin), Hua Tian (Ethan Gao), Li Li (Junxi Ding)
gear trains upon the students, as well as some real world implications, and then after, we
introduced two hands on exercises. The first was the fan exercise, the exercise where they have to create a fan, which applies the previous concept of gear ratios, to see which is able to make a configuration that produces the fastest spinning fan.
The second was the lift of the weights, where we made them create robots to lift weights. Since we had taught them that torque and speed are inverse when power is constant, this challenge required the students to build a gear system that spins as slow as possible, which resulted in the success of lifting small weighted discs, of around 2-5 pounds.
Volunteers (4Hrs): Chenyu Jin
Volunteers (3Hrs): Shaotan Liu, Junxi Ding, Ethan Gao, Grace JiParents on Duty: Yuqiao (Chenyu Jin), Hua Tian (Ethan Gao), Li Li (Junxi Ding)

