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Students will be introduced to the concept of gear ratios and how gears affect the speed and torque of mechanisms. Students will design and build a Ping Pong Launcher, demonstrating their use of gears.
*The VEX IQ Kit is the preferred platform to use as the lesson notes use examples of gears found in the VEX IQ Kit. However, students using other robotics kits with different gears are still able to do the calculations using the proper number of teeth found on the gears.
Extend understanding of fraction equivalence and ordering.
Apply and extend previous understandings of multiplication and division.
Solve real world problems involving multiplication of fractions and mixed numbers, e.g., by using visual fraction models or equations to represent the problem.
Define a simple design problem reflecting a need or a want that includes specified criteria for success and constraints on materials, time, or cost.
Generate and compare multiple possible solutions to a problem based on how well each is likely to meet the criteria and constraints of the problem.
Plan and carry out fair tests in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved.
Define the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the natural environment that may limit possible solutions.
Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
Analyze data from tests to determine similarities and differences among several design solutions to identify the best characteristics of each that can be combined into a new solution to better meet the criteria for success.
