Principles of Engineering PLTW Scope and Sequence Year at a Glance First Semester

Transcription

1 PLTW Scope and Sequence Year at a Glance First Semester Three Weeks 1 st 3 weeks 2 nd 3 weeks 3 rd 3 weeks 4 th 3 weeks 5 th 3 weeks 6 th 3 weeks Topics/ Concepts 1.1 Energy Forms 1.2 Energy, Work, & Power 1.3 Energy Sources 1.3 Energy Sources 1.4 Opportunities in Engineering 2.1 Mechanisms 2.2 Machine Control 2.3 Fluid Power 2.4 Control Systems Design Problem 2.4 Control Systems Design Problem Resource: Principles of Engineering PLTW Scope and Sequence Year at a Glance Second Semester Three Weeks 1 st 3 weeks 2 nd 3 weeks 3 rd. 3 weeks 4 th 3 weeks 5 th 3 weeks 6 th 3 weeks Topics/ Concepts 3.1 Material Properties 3.2 Material Testing 3.3 Materials Design Problem 4.1 Statics 4.2 Dynamics 4.3 Statics & Dynamics Design Problem. Resource: 1

2 Unit 1 Energy & Power (18 days) Lesson 1.1 Energy Forms It is expected that students will: Use schematic symbols to diagram electric circuits. Assemble and troubleshoot series and parallel circuits. Demonstrate the correct use of a digital multimeter. Test and apply the relationship between voltage, current, and resistance as stated in Ohm s Law. Complete calculations for electric circuits. Design, construct, and test recyclable insulation for a house. Test and apply the relationship between the R- values and recyclable insulation. Complete calculations for conduction, R-values, and radiation. Lesson 1.2 Energy, Work, & Power Lesson 1.3 Energy Sources Lesson 1.4 Opportunities in Engineering 2

3 Unit 2 Control Systems (28 days) Lesson 2.1- Mechanisms It is expected that students will: Measure forces and distances related to mechanisms. Distinguish between the six simple machines, their attributes, and components. Calculate mechanical advantage and drive ratios of mechanisms. Design, create, and test gear, pulley, and sprocket systems. Calculate work and power in mechanical systems. Determine efficiency in a mechanical system. Design, create, test, and evaluate a compound machine design. Choose appropriate inputs and outputs based on the need of a technological system. Differentiate between the characteristics of digital and analog devices. Judge between open and closed loop systems in order to choose the most appropriate system for a given technological problem. Create system control programs that utilize flowchart logic. Design and create a control system based on given needs and constraints. Identify devices that utilize fluid power. Identify and explain basic components and functions of fluid power devices. Differentiate between the characteristics of pneumatic and hydraulic systems. Distinguish between hydrodynamic and hydrostatic systems. Design, create, and test a hydraulic device. Design, create, and test a pneumatic device. Calculate values in a fluid power system utilizing Pascal s Law. Distinguish between pressure and absolute pressure. Lesson 2.2 Machine Control Lesson 2.3 Fluid Power Lesson 2.4 Design Problem 3

4 Distinguish between temperature and absolute temperature. Calculate values in a pneumatic system utilizing the perfect gas laws. Calculate flow rate, flow velocity, and mechanical advantage in a hydraulic system. Brainstorm and sketch possible solutions to an existing design problem. Create a decision making matrix for their design problem. Select an approach that meets or satisfies the constraints provided in a design brief. Create a detailed pictorial sketch or use 3D modeling software to document the best choice, based upon the design team s decision matrix. Present a workable solution to the design problem. 4

5 Unit 3 Materials (20 days) Lesson 3.1 Materials Properties It is expected that students will: Investigate materials using an Internet database to identify and analyze materials of selected products. Model two parts of selected products using 3D modeling software. Calculate the density and volume for the material of the parts to be modeled. Identify the manufacturing processes used to create the parts selected. Identify the recycling codes to the parts modeled. Create a sign, cartoon, song, commercial, vehicle tag, t-shirt, or packaging for two different products that will encourage a specific age group to recycle. Utilize a five-step technique to solve word problems. Obtain measurements of material samples. Test various samples of potential materials for the construction of a concrete bridge. Complete basic static and statistical calculations for a concrete bridge. Design, construct, and test a concrete bridge. Develop and maintain a budget for the design of a concrete bridge. Brainstorm and sketch possible solutions to an existing design problem. Create a decision making matrix for the design problem. Select an approach that meets or satisfies the constraints given in a design brief. Create a detailed pictorial sketch or use 3D modeling software to document the best choice, based upon your team s decision matrix. Present a workable design solution. Lesson 3.2 Materials Testing Lesson 3.3 Materials Design Problem 5

6 Unit 4 Statics & Dynamics (22 days) Lesson 4.1 Statics Create free body diagrams of objects, identifying all forces acting on the object Mathematically locate the centroid of a rectangle and a triangle. Locate the centroid of common beam crosssectional areas using software. Calculate moment of inertia for a rectangular shape. Differentiate between scalar and vector quantities. Identify magnitude, direction, and sense of a vector. Calculate the X and Y components given a vector. Calculate moment forces given a specified axis. Use equations of equilibrium to calculate unknown forces. Use the method of joints strategy to determine forces in the members of a statically determinate truss. Calculate distance, displacement, speed, velocity, and acceleration from data. Design, build, and test a vehicle that stores and releases potential energy for propulsion. Calculate acceleration due to gravity given data from a free fall device. Calculate the X and Y components of a projectile motion. Determine the needed angle to launch a projectile a specific range given the projectile s initial velocity. Brainstorm and sketch possible solutions to an existing design problem. Create a decision making matrix for their design problem. Select an approach that meets or satisfies the constraints provided in a design brief. Create a detailed pictorial sketch or use 3D Lesson 4.2 Dynamics Lesson Statics and Dynamics Design Problem 6

7 modeling software to document the best choice, based upon your team s decision matrix. Present a workable solution to the design problem. 7

8 Unit 5 Biomedical (61 days) It is expected that students will: 34. Demonstrate the application of engineering design principles by improving upon existing hospital designs or surgical equipment designs. 35. Demonstrate the application of product liability, product reliability, product reusability, and product failure. 36. Develop a portfolio identifying anatomical joint features and movements. 37. Build a joint model with the same degrees of freedom as the human counterpart. 38. Design and sketch a new joint replacement and solid model approved sketches. 39. Develop a materials and development cost for the joint design and surgical implant. 40. Synthesize skeletal system concepts with the design process for engineering joints. 41. Research heart diseases and disorders. 42. Sketch and provide a solid model of heart chambers and valves. 43. Research procedures involving artificial heart surgery and present the cost of a proposed noninvasive implant. 44. Research and create a set of improvements for imaging techniques. 45. Design a portable ECG monitor and study the electrical aspects associated with the heart. 46. Research and design improvements in heart implants or instruments. 47. Perform a virtual heart surgery to better understand the instruments and implants in need of improving. Lesson Biomedical Engineering (12 days) Biomedical Guidelines (4 days) Healthcare Engineering (8 days) Lesson 5.2 Orthopedics (30 days) The Skeletal System (8 days) Orthopedic Implants (5 days) Material Properties of Joints (17 days) Lesson 5.3 Cardiovascular Devices and Imaging (19 days) Key to My Heart (2 days) Heart of the Matter (10 days) MRI and Body Planes WebQuest (2 days) The Beat is On (5 days) Electrifying Engineer (optional) 8