Students learn what they can do to protect themselves from health hazards in their environment. They learn about potential hazards, how these can affect their health, and what they can do to minimize their exposure.
In these three public service videos from the National Institute of Environmental Health Sciences, learn how to minimize exposure to pesticides, chemical contaminants, and secondhand smoke. Through simple demonstrations, the videos describe the importance of washing the skin after coming into contact with pesticides, how to safely use household chemicals to prevent harmful vapors from escaping into the air, and how to gently confront smokers to avoid secondhand smoke. Two of these videos are available in both English and Spanish audio, along with corresponding closed captions. Includes a background essay and discussion questions.
In this media-rich, self-paced lesson, students explore activism - taking action to bring about change - including some causes that activists espouse and the tactics that they use to end harmful practices or reshape policies. The lesson contains videos that feature some successful youth activists, and identifies some of the personal characteristics that many activists possess. The lesson concludes with a choice of a final assignment: students may either plan and execute an activist campaign, or interview or profile an activist in their own community. Includes a teacher's guide.
In this video segment adapted from NOVA scienceNOW, learn how what you eat, drink, or smoke may affect the instructions your epigenomes send to your genes, and as a result, change how your DNA is expressed.
Sal determines if shapes are divided into 2 or 4 equal sections.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Semonstrates how to solve an equation with variables on both sides with the example, (3/4)x + 2 = (3/8)x - 4. [4:50]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Sal finds equivalent expressions by combining like terms and using the distributive property. [1:57]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Apply your critical thinking skills to learn about multiplication and division of exponents. This interactive exercise focuses on positive and negative exponents and combining exponents in an effort to get you to recognize patterns and determine a rule.
This animated Math Shorts video explains how the distributive property can help students model and create equivalent expressions. In the accompanying classroom activity, students play a quick game where they identify common factors within an expression and work on a series of problems that expand their understanding of how to apply the distributive property. While the problems begin with whole number expressions, students soon work toward algebraic notation and eventually develop the idea that ax + bx can be rewritten as x(a + b).
Uses visual models and number lines to demonstrate the equivalency of fractions. [4:02]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how two equivalent fractions only represent the same quantity if they refer to the same size whole. [6:06]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Get an overview of the estate tax. [10:46]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Project expenses, profits, and losses for your first year in business using a spreadsheet. Time to complete: 45-90 minutes
Practice estimating the equation of a line of best fit through data points in a scatter plot. Then use the equation to make a prediction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Video lesson provides practice with estimating the length of an object when given the length of another object. [2:02]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how to find the line of best fit for a scatter plot. [1:17]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Learn about estuaries, where the fresh water rivers meet the salt water of the oceans. The unique features of estuaries are explained, followed by a look into estuarine food webs. Next find out about the different plants and animals that call estuaries home. A list of resources completes the fact sheet.
In this video excerpt from NOVA, learn about the advantages, disadvantages, and ethical implications of preimplantation genetic diagnosis, or PGD, a technique used to screen embryos created through in vitro fertilization for diseases.
In this free tutorial, learn how to use this popular site for buying and selling homemade goods.
Lessons include: (1) Getting Started with Etsy. Learn how to get started with Etsy. (2) Buying Items. Learn all about Etsy buying best practices. (3) Selling Items. Learn all about Etsy selling best practices.
Explore plant and animal cells with this interactive site. Explanations are provided for each cell organelle.