This task requires students to use the normal distribution as a model for a data distribution. Students must use given means and standard deviations to approximate population percentages. There are several ways (tables, graphing calculators, or statistical software) that students might calculate the required normal percentages. Depending on the method used, answers might vary somewhat from those shown in the solution.

The purpose of the task is to analyze a plausible real-life scenario using a geometric model. The task requires knowledge of volume formulas for cylinders and cones, some geometric reasoning involving similar triangles, and pays attention to reasonable approximations and maintaining reasonable levels of accuracy throughout.

Using the same method for measuring friction that was used in the previous lesson (Discovering Friction), students design and conduct an experiment to determine if weight added incrementally to an object affects the amount of friction encountered when it slides across a flat surface. After graphing the data from their experiments, students can calculate the coefficients of friction between the object and the surface it moved upon, for both static and kinetic friction.

The purpose of this task to help students think about an expression for a function as built up out of simple operations on the variable, and understand the domain in terms of values for which each operation is invalid (e.g., dividing by zero or taking the square root of a negative number).

This seminar will teach you how to calculate the domain of a function when it is written in functional notation. You will learn how to make these calculations when the function has variables in the denominator of a fraction, and/or when the function has variables under a radical. You will learn the importance of mastering this skill so that future studies of functions may be conducted within the restrictions of the domain.StandardsCC.2.2.HS.C.1 Use the concept and notation of functions to interpret and apply them in terms of their context.

This math problem demonstrates the concept of geometric progression, through an example of a million dollar contract between an employee and an employer. Application of the concept of geometric progression to social cause activism is addressed. This resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications.

This OER explores the basic operations of a Duochord. It contains both an activity as well as resources for further exploration. It is a product of the OU Academy of the Lynx, developed in conjunction with the Galileo's World Exhibition at the University of Oklahoma.

Students experiment with various ways to naturally dye materials using sources found in nature—roots, leaves, seeds, spices, etc.—as well as the method of extracting dyes. Then they analyze various materials using statistical methods and tackle an engineering design challenge—to find dyes that best suit the needs of a startup sustainable clothing company.

Biological systems (e.g. cells) can make stochastic transitions between phenotypes (e.g. states of relatively increased or decreased drug resistance). This means that an initially drug-sensitive population can generate relatively drug-resistant subpopulations. This video presents a metronomogram, which is a tool for understanding whether such stochastic transitions can provide an opportunity for therapeutic treatment. Citation: Liao D, Estevez-Salmeron L, and Tlsty TD (2012) "Conceptualizing a tool to optimize therapy based on dynamic heterogeneity," Phys. Biol. 9:065005.

This is my culminating EDTC 5401 Professional Development tutorial and presentation on Scratch, a multidisciplinary tool through which students grades 3-11 can design interactive stories, games, and animations.

EQuIP (Educators Evaluating the Quality of Instructional Products) is an initiative designed to identify high-quality materials aligned to the Common Core State Standards (CCSS) or Next Generation Science Standards (NGSS). This site includes the EQuIP rubric for lessons and units as well as the EQuIP task review rubric and training materials.

DATA: Planetary images and geodesy data. TOOL: UNAVCO's Jules Verne Voyager Map Server. SUMMARY: Generate maps of Earth or any of 19 other planets and moons. Save and import images into presentations or reports.

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In this demonstration, evidence of the Earth's rotation is observed. A tripod, swiveling desk chair, fishing line and pendulum bob (e.g., fishing weight or plumb bob) are required for the demonstration. This resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications.

This lesson will allow students to select and share what details are important on a topic.  Groups of students will research a topic and then discuss and determine the top 25 important things someone should know about the topic.

This resource is a great assessment tool and personalized learning program for students K-12.

Students will develop, justify, and evaluate conjectures about the relationship between two quantitative variables over time in the United States: the median age (in years) when women first marry and the percentage of women aged 25–34 with a bachelor’s degree or higher. Students will write a regression equation for the data, interpret in context the linear model’s slope and y-intercept, and find the correlation coefficient (r), assessing the strength of the linear relationship and whether a significant relationship exists between the variables. Students will then summarize their conclusions and consider whether correlation implies causation.

Math in Real Life (MiRL) supports the expansion of regional networks to create an environment of innovation in math teaching and learning.  The focus on applied mathematics supports the natural interconnectedness of math to other disciplines while infusing relevance for students.  MiRL supports a limited number of networked math learning communities that focus on developing and testing applied problems in mathematics.  The networks help math teachers refine innovative teaching strategies with the guidance of regional partners and the Oregon Department of Education.

This book offers an introduction to the electromagnetic spectrum using examples of data from a variety of NASA missions and satellite technologies. The 84 problem sets included allow students to explore the concepts of waves, wavelength, frequency, and speed; the Doppler Shift; light; and the energy carried by photons in various bands of the spectrum. Extensive background information is provided which describes the nature of electromagnetic radiation.

Complete set of mobile friendly Elementary Algebra sample exams with solutions. In addition, there are links to pdf versions and a sample final exam with answers.

Most orbiting bodies follow a path that is an ellipse. In this activity, students construct 2 ellipses, and examine and measure them to determine some of their fundamental properties. The exercise helps learners make comparisons to planetary orbit eccentricities, and includes guidelines for constructing a scale model of Haley's comet.