The purpose of this video lesson is to expand the student's knowledge about enzymes by introducing the antioxidant enzymes that are intimately involved in the prevention of cellular damage and eventual slowing of the aging process and prevention of several diseases. Students will learn that natural antioxidant enzymes are manufactured in the body and provide an important defense against free radicals. The topic of free radical action is introduced, covering how they are constantly generated in living cells both by ''accidents of chemistry'' and also by specific metabolic processes.

This video segment from Between the Lions is an original, animated retelling of the classic Aesops fable in which a grasshopper sings and dances while the ants gather food for winter. The grasshopper then has nothing to eat once the cold weather comes. In the end, the ants invite the grasshopper inside for a meal, and they all dance a merry mambo. Featured "m" words include: many, moons, moody, Murray, Marge, merry, Melanie, mangos, melons, mambo, music, moving, mushrooms, macaroni, managed, milk, Myrtle, mind, middle, month, mountains, melt, meanwhile, munched, moment, make, move, motioned, meatballs, mashed potatoes, magnificent, and meal. This video segment provides a resource for Fluency, Phonemic Awareness, Phonics, Letter Knowledge Awareness, and Phonological Awareness. ***Access to Teacher's Domain content now requires free login to PBS Learning Media.

Citizen scientist Anya, an indigenous Siberian girl, witnesses the changes in her community as a result of climate change after working with Woods Hole scientist Max Holmes' research team aboard her father's ship. She gets involved in collecting water samples to learn, and teach her schoolmates about, global warming.

Python es un lenguaje de programación general que es útil para escribir scripts para trabajar con datos de manera efectiva y reproducible. Esta es una introducción a Python diseñada para participantes sin experiencia en programación. Estas lecciones pueden enseñarse en un día (~ 6 horas). Las lecciones empiezan con información básica sobre la sintaxis de Python, la interface de Jupyter Notebook, y continúan con cómo importar archivos CSV, usando el paquete Pandas para trabajar con DataFrames, cómo calcular la información resumen de un DataFrame, y una breve introducción en cómo crear visualizaciones. La última lección demuestra cómo trabajar con bases de datos directamente desde Python. Nota: los datos no han sido traducidos de la versión original en inglés, por lo que los nombres de variables se mantienen en inglés y los números de cada observación usan la sintaxis de habla inglesa (coma separador de miles y punto separador de decimales).

Apex, CO Mining Town. Western Mining History presents a brief summary of Colorado's Historical Mining Towns with links to additional Colorado resources for a mining town database and mines by county. Western Mining History is an historical site that provides information on mining, mining towns, the gold and silver rush, and Photos and maps of the western United States. This is a strong primary source resource that can be used for a variety of class research projects. Consider becoming a member or making a donation to help further the work of the site.

NASA presents this gallery of images from the Apollo 11 mission to the moon in 1969.

O app EcoGuardiões da Comunidade parte da necessidade de se criar uma ferramenta lúdica e acessível de promoção da Educação Ambiental e de cadeias econômicas de Turismo de Base Comunitária, integrando comunidades e escolas. O aplicativo possibilita o entretenimento educativo com o Quiz Ecológico e Dica EcoGuardiã, reunir informações locais e globais para sensibilização sobre a temática ambiental e sobre roteiros, produtos e atrativos deste turismo voltado ao bem viver, com espaços para avaliação e agendamento de visitas às comunidades periféricas e/ou tradicionais, criar uma Rede de Guardiões Socioambientais para articulações, denúncias ambientais e alimentação do próprio app através do elo entre comunidades e escolas, auxiliando assim no fortalecimento da participação coletiva, identificação e pertencimento com a estes espaços.

Using the context of apples, students will apply their knowledge of heredity and genetics to distinguish between sexual and asexual reproduction as they explain how new varieties of apples are developed and then propagated to meet consumer demand for a tasty, uniform, consistent product. Photo by Sokmean Nou on Unsplash

Apple Scientists. This is the Lesson 3 Digging Deeper activity, from Unit 7 Plant Systems, from the DIGS (Developing Individuals, Growing Stewards) AmeriCorps Curriculum from CSU. The curriculum focuses on introducing students in grades 3-5 to Colorado agriculture, industry and environmental issues. The curriculum is matched to State Standards 2021. The curriculum upon request. Visit: https://engagement.colostate.edu/programs-old/developing-individuals-growing-stewards/

In this lesson, students will explore apples using their five senses. Includes activity instructions, extension activities, songs, and apple and five senses realted reading list.

NGSS: K-ESS3-1, 1-LS1-1

Time: 30 minutes

Materials: "Apples Grow on Trees" or other book about apples.

In this lesson, students are introduced to trees and the many things we commonly use that come from trees. Includes introductory movement activity, guided discussion, a matching game, and fun facts.

NGSS: Partially meets 1-LS1-1, 2-PS1-1, 2-PS1-2

Common Core: W.2.7, W.2.8

Time: 30 minutes

Materials: "Apples to Oregon" book and three paper lunch bags labled: wood, food, cellulose.

Practical lab into the chemical reaction between calcium carbide and water and the resulting ignition of acetylene gas.

In this problem set students are given Rb/Sr and 87Sr/86Sr data for whole rock and mineral samples from three granitic intrusions in the Sierra Nevada. They use these data (in EXCEL) to calculate isochron ages and initial ages for the intrusions and then interpret their results. This problem is intended to teach some spreadsheet skills (linear regressions, graphing) as well as having them think about the use of radiogenic isotopes.

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Application of Oral History to Economics: Family Economic History The assignment will connect an oral history approach to the examination of economic concepts such as opportunity cost of attending school, economic crises (inflation and unemployment, etc.), and standard of living over time. Particularly, students will interview parents, grandparents, or family members from older generations regarding the types of work they performed, economic decisions they have made, and the economic conditions while they were growing up. The project develops a student's ability to understand and integrate these concepts from a variety of perspectives and real world situation.

This final lesson in the unit culminates with the Go Public phase of the legacy cycle. In the associated activities, students use linear models to depict Hooke's law as well as Ohm's law. To conclude the lesson, students apply they have learned throughout the unit to answer the grand challenge question in a writing assignment.

Does the real-world application of science depend on mathematics? In this activity, students answer this question as they experience a real-world application of systems of equations. Given a system of linear equations that mathematically models a specific circuit—students start by solving a system of three equations for the currents. After becoming familiar with the parts of a breadboard, groups use a breadboard, resistors and jumper wires to each build the same (physical) electric circuit from the provided circuit diagram. Then they use voltmeters to measure the current flow across each resistor and calculate the current using Ohm’s law. They compare the mathematically derived current values to the measured values, and calculate the percentage difference of their results. This leads students to conclude that real-world applications of science do indeed depend on mathematics! Students make posters to communicate their results and conclusions. A pre/post-activity quiz and student worksheet are provided. Adjustable for math- or science-focused classrooms.

This lab exercise provides students with activities utilizing vector operations within the context of the atmospheric and oceanic environments.

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Applied Calculus instructs students in the differential and integral calculus of elementary functions with an emphasis on applications to business, social and life science. Different from a traditional calculus course for engineering, science and math majors, this course does not use trigonometry, nor does it focus on mathematical proofs as an instructional method.

Best open source book in Discrete Math. Covers all the subjects in a standard Discrete Math class for mathematics or computer science students and contains sage cells for all subjects. Set Theory, Combinatorics, Logic, Relations, Recursion, Graph Theory, Trees, Algebraic Structures, Boolean Algebras, Automata, etc. Originally published commercially, its original text was peer-reviewed and was adopted for use at several universities throughout the country. Now in its open source version, has the same quality but it is free.