Why are living things different from one another? This unit on genetics starts out with students noticing and wondering about photos of two cattle, one of whom has significantly more muscle than the other. Students figure out how muscles typically develop as a result of environmental factors such as exercise and diet. Then, they work with cattle pedigrees, including data about chromosomes and proteins, to figure out genetic factors that influence the heavily muscled phenotype and explore selective breeding in cattle.

This unit is part of the OpenSciEd core instructional materials for middle school.

This template is meant to be a guide for Nebraska Physical Education Teachers when creating digital online lessons. Headings and/or topics not included in the lesson plan should be marked N/A.

Students will use a perceived weak material to construct something that is surprisingly strong.
Students can experiment with different shapes and configurations to see what holds the most weight.
The cube size is defined, what each student places within each 4x4 square, is up to them.

Students will use a perceived weak material to construct something that is surprisingly strong.
Students can experiment with different shapes and configurations to see what holds the most weight.
The cube size is defined, what each student places within each 4x4 square, is up to them.

We've talked about AC Circuits, but now it's time to delve into the world of AC Circuits (or alternating currents). We’ve talked about how they change voltage, which helps transmit electricity over long distances, but there’s so much more to the physics of AC circuitry.

The NRC Framework for K-12 Science Education and the resulting Next Generation Science Standards focus on an integrated three-dimensional view of science learning in which students develop understanding of core ideas of science and crosscutting concepts in the context of engaging in science and engineering practices.How is assessing three-dimensional science learning different than how we have thought of science learning in the past? How can we design assessment tasks that elicit student’s current understanding of specific aspects of the disciplinary core ideas, science and engineering practices, and crosscutting concepts in order to shape future instruction? In this workshop, participants will learn how to interpret and design cognitive formative assessment to fit a three-dimensional view of learning.This resource originates from a series of PD sessions on 3D formative assessment developed and provided by Katie Van Horne, Shelley Stromholt, Bill Penuel, and Philip Bell. It has been improved through a collaboration in the ACESSE project with science education experts from 13 states. Please cite this resource as follows:Stromholt, S., Van Horne, K., Bell, P., Penuel, W. R., Neill, T. & Shaw, S. (2017). How to Assess Three-Dimensional Learning in Your Classroom: Building Assessment Tasks that Work. [OER Professional Development Session from the ACESSE Project] Retrieved from http://stemteachingtools.org/pd/SessionB

This module examines the structures, systems and processes that should be established in order for a school to be effective. The expectation of all stakeholders in the school environment is that an effective school will be able to provide an education of progressively higher quality for all learners. The premise of this module is that effective education is built upon, and grounded in, policies, principles and values. The acts, regulations and policies of national and provincial governments have created the framework and values within which the schools organisational systems, and physical and financial resources should be managed.

This module is about the management of teaching and learning. We begin by exploring the school as a learning organization and promoting a culture of learning and teaching, which is dedicated to constant renewal and improvement. We will also tackle the issue of context, and will look at the ways in which the physical environment of the school impacts on the quality of learning. This leads us into an exploration of the challenges of effectively planning, implementing, monitoring and evaluating a curriculum that needs constantly to change and reinvent itself in line with the changing needs of a changing society. In particular, we focus on what is required to improve teaching and learning in order to produce enhanced learner outcomes. This paves the way for the identification and development of the skills and processes needed to lead and manage effective teaching and learning.

An essential and practical text for both students and teachers of AC electrical circuit analysis, this text picks up where the companion DC electric circuit analysis text leaves off. Beginning with basic sinusoidal functions, ten chapters cover topics including series, parallel, and series-parallel RLC circuits. Numerous theorems and analysis techniques are examined including superposition, Thévenin's theorem, nodal and mesh analysis, maximum power transfer and more. Other important topics include AC power, resonance, Bode plots and an introduction to three-phase systems. Each chapter begins with a set of chapter objectives and includes a summary and review questions. A total of over 500 end-of-chapter exercises are included. A companion laboratory manual is available.

The ACS (American Chemical Society) citation style guide uses color-coded citation examples to assist chemistry students in converting MLA and APA citations to the ACS citation style. The MLA and APA citation styles are widely used in college courses, and many students are familiar with those styles. This guide makes citation in chemistry courses simple by giving examples of frequently referenced resources.

Solving circuits with differential equations is hard. If we limit ourselves to sinusoidal input signals, a whole new method of AC analysis emerges. Created by Willy McAllister.

Here's a preview of how AC analysis is going to work. To get ready we need to review some of the ideas from trig and complex numbers. Created by Willy McAllister.

We break a sinusoidal input voltage into two complex exponentials. Using superposition, we can recover the complex output signals and reassemble them into a real sinusoidal output voltage. Created by Willy McAllister.

The coral reefs of the South Pacific island nation of Vanuatu are the backbone of the island's environmental and economic health. Today they face destruction from a silent predator that can rapidly decimate an entire reef. In this video, students learn about how a starfish is destroying the coral reefs of Vanuatu and how the islanders are adapting.

In this video, learn how communities in the arid high-mountain region of Ladakh rely on glacial water to feed streams and water crops during the spring and summer months. Global warming is dramatically reshaping the future of these areas. Meet a Ladakhi teacher and engineer who devised a method to capture and store glacial runoff into magnificent ice pyramids that are used as water resources throughout the summer and during peak agricultural months.