LESSON PLANS CREATED BY DAVID GUTIERREZ and FRAN HARLOW

1. LESSON PLAN BASED ON A SEISMIC EVENT’S AFFECT ON A SLOPE MADE OF CLAY SOILWILL THE SLOPE FAIL?ALGEBRA I

2. LESSON PLANS CREATED BY DAVID GUTIERREZ and FRAN HARLOW

3. LESSON PLANS WERE CREATED WITH THE HELP OF PROFESSOR GIOVANNA BISCONTIN and PhD GRADUATE STUDENT CASSIE RUTHERFORD

4. Submarine Landslide Imagine being on an oil rig in the middle of the Pacific Ocean; and a seismic event causes a GIGANTIC landslide of the ocean floor. Will we be SWEPT away?

5. Submarine Seismic Slope Stability • Clay soil is weakened by cyclic loading • Will the slope fail? • How much displacement during the earthquake? • Total Stress = effective stress + water pore pressure • Total stress stays the same (weight on top) during the earthquake, effective stress decreases but does not = 0, and the pore pressure increases

6. Will the Slope Fail? • What is an earthquake? • How does it affect clay soil on a slope? • How do you determine if the slope will fail? • Will a structure built on the slope fail? • Will a structure built on the slope remain undamaged?

7. INSTRUMENTATION AND CALIBRATION • The physical quantities that we need to measure when conducting experiments on soils are: • temperatures • force • displacement • pressure

8. TRANSDUCERS Physical units of force displacement and pressure in to electrical signal (sensor) directly related to that physical units. Displacement Transducer Physical Input Electrical Signal Physical Input Force Transducer Electrical Signal

9. LESSON ONE (45 Minutes) • Calibration • Introduce the data • Set up the chart – the students are given: • First Column - Force • Second Column - Voltage • Students complete the chart • Third Column - (Increments in Force) • Fourth Column - (Increments in Voltage)

10. Student Handout:CALIBRATION DATA SHEET (Force)

11. Student Work (Lesson One)

12. Student Handout:CALIBRATION DATA SHEET (LSCT)

13. Student Work Key (Lesson One)

14. Lesson Two (45 minutes) • Review Lesson One • Furnish students graph paper • Introduce Linear Relationships • Students Will • Determine the maximum and minimum values of the independent value (x – value) • Determine the maximum and minimum values of the dependent value (y – value)

15. Lesson Two (Continued) • Take this information and determine a reasonable domain and range • Graph the x-value and the y-value on the graph • x-value is column 1 (Force) • y-value is column 2 (Voltage) • Determine the best fit by drawing a straight line • Find the trend for the line after determining the best fit

16. Student Work: CALIBRATION OF LSCT(Linear Strain Conversion Transducer)Equation: y = 72.252x – 3.8145y is in mV; 72.252 is the slope (calibration factor) (mV/in);-3.8145 is the y-intercept in mV

17. Student Work:CALIBRATIONS OF FORCE TRANSDUCEREquation: y = 0.0071x + 2.4185y is in mV; 0.0071 is the slope (calibration factor) (mV/kg);2.4185 is the y-intercept (mV)

18. Lesson Three (45 minutes) • Review lessons One and Two • With the graph they have created, students will • Brainstorm • Determine the 0 value for the graph • Determine from Lesson One (the chart), the slope of the line • Determine the significance of the slope • Discuss and apply the relationship between the x-values and the y-values • Write a sentence to describe the above relationship • Formulate an equation from your sentence

19. Lesson Three (Continued) • Predictions • Be asked to predict how the Voltage will behave at different value of force • What happens when the force increases or decreases? • Discuss predictions of slope failure

20. Lesson Four – Soil Test • Introduce the data • Plot the points on the graph – the students are given: • First Column – Displacement (x-value) • Second Column – Force (y-value) • Students will discover that the graph is nonlinear • Discussion • Will the slope fail? • Students will discover that when the earthquake force exceeds the maximum on the y-axis, the slope will fail

21. SOIL TEST measured in millimeters and newtons

22. SOIL TEST measured in inches and kilograms of force

23. SOIL TEST GRAPH

24. Lesson Five (45 minutes) From lessons one, two, three, and four, students will be asked to write a two page essay on the process starting from creating a chart to the end result (determining whether the slope will fail). The students will be asked to explain the connection between these lessons and Civil Engineering applications.

25. TAKS OBJECTIVES • Objective 1 • The student describes functional relationships in a variety of ways. • Objective 2 • The student demonstrates an understanding of the properties, and attributes of functions. • Objective 3 • The student will demonstrate an understand- ing of linear functions • Objective 5 • Quadratic and other nonlinear functions

26. TEKS OBJECTIVES • A(b)(1): Foundation for functions. • The student understands that a function represents a dependence of one quantity or another and can be described in a variety of ways. • The student describes independent and dependent quantities in functional relationships. • The student [gathers or records data, or] uses data sets, to determine functional (systematic) relationships between quantities. • The student describes functional relationships for given problem situations and writes equations or inequalities to answer questions arising from the situations. • The student represents relationships among quantities using concrete models, tables, graphs, diagrams, verbal descriptions, equations, and inequalities. • The student interprets and makes inferences from functional relationships.

27. A(c)(2): Linear functions. The student understands the meaning of the slope and intercepts of linear functions and interprets and describes the effect of changes in parameters of linear functions in real-world and mathematical situations. The student develops the concept of slope as a rate of chanage and determines slopes from graphs. A(d)(3): Quadratic and other nonlinear functions. The student understands there are situations modeled by functions that are neither linear nor quadratic and models the situations. TEKS OBJECTIVES (Continued)

28. TEKS OBJECTIVES (Continued) • A(b)(2): Foundations for Functions • The student demonstrates an understanding of the properties and attributes of functions. • The student identifies, [and sketches] the general forms of linear (y = x) and quadratics (y = x2) parent functions. • For a variety of situations, the student identifies the mathematical domains and ranges and determines reasonable domain and range values for given solutions. • The student interprets situations in terms of given graphs [or create situations that fit given graphs]. • In solving problems, the student [collects and] organizes data, [makes and] interprets scatter plots, and models, predicts, and makes decisions and critical judgments.

29. TEKS OBJECTIVES (Continued) • A(b)(3): Foundation for functions. • The student understands how algebra can be used to express generalizations and recognizes and uses power of symbols to represent situations. • The student uses symbols to represent unknowns and variables. • Given situations, the student looks for patterns and represents generalizations algebraically. • A(b)(4): Linear functions. • The student understands that linear functions can be represented in different ways and translates among their various representations. • The student determines whether or not given situations can be presented by linear functions. • The student translates among and uses algebraic, tabular, graphical, or verbal descriptions of linear functions.