Curated OER
Direct, Inverse and Joint Variation
Eleventh graders identify, create and solve word problems involving inverse variation. In this algebra instructional activity, 11th graders solve problems using direct, inverse and joint variation. They identify problems using these...
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Selection and Variation in the Egyptian Origami Bird
High schoolers investigate genetics and evolution of species. They simulate the breeding of birds using origami birds. In addition, using dice they introduce genetic variation into the species.
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How Evolution Works
Students work in groups to investigate and present genetic variation, adaptation, and sexual selection as it relates to evolution. In this evolution lesson, students watch a video discuss how the human eye could evolve due to natural...
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Gene Switches- A Model
Students explore genetic variation within a population. In this genetic adaptation lesson, students investigate the reasons contributing to genetic adaptation. Students collaborate and analyze DNA models. Multiple resources are provided.
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Art Class, Variation 2
Given a set of six paint mix ratios, artistic mathematicians produce an equation that relates the number of parts for blue paint to parts for yellow paint resulting new shades of green.
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Sore Throats, Variation 1
Why does Nia's water taste saltier than Trey's if she put more into her cup than he did? Math masters set up proportions in order to compare the mixtures. This task effectively has learners apply the concepts of ratio and proportion to a...
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7.RP Music Companies, Variation 2
Real-world multiple-step proportion problems are sometimes hard to find for your math class. Here is one designed specifically to meet that need. Learners use proportional relationships to determine price per share in the acquisition of...
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Regents High School Examination: Living Environment 2009
Emerging ecologists need a full understanding of life, from the inner workings of a cell to the complex relationships among organisms. This examination is meant to assess high schoolers after an entire year course on the living...
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Regents High School Examination: Living Environment 2007
Environmental science enthusiasts show what they know at the end of the year by taking this full-fledged final exam. They answer multiple choice, graph interpretation, and essay analysys questions, 73 of them in all. Topics range from...
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Topic 9.2 - Direct, Inverse, and Joint Variation
In this variation worksheet, learners analyze 4 equations and determine whether each represents a direct, inverse, or joint variation. They then write an equation and solve it for 6 different variations.
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Genetic Variation
Students study families and their genetics. In this investigative lesson students explain how variations in genetics can be harmful and how some can help with survival.
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Proportionality, Ratios and Constant Variation
Students use Scion Image to estimate the proportion of space images. For this proportion lesson, students investigate the online site of Image of the Orbitor and relate the dimensions and sizes to known sizes.
Corbett Maths
Inverse Proportion
Take an indirect view of proportionality. Using a similar approach of direct variation, the resource shows how to solve inverse proportions. The video steps through finding the constant of proportionality to write the formula for the...
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AP: Chapter 23: The Evolution of Populations
How and why do populations change over time? AP biology aces explore this question by completing this assignment. They write the answers to 21 questions regarding population genetics, stability, genetic drift, polymorphism, and selection.
Howard Hughes Medical Institute
RNA Diversity
Messenger RNA, transfer RNA, and ribozymes ... the many faces of RNA. The structure of RNA makes it much more versatile than the very similar DNA. Learners view a slideshow presentation to learn all about the different forms and...
Howard Hughes Medical Institute
Biochemistry and Cell Signaling Pathway of the Mc1r Gene
How do mice have so much fur color variation over generations? Scholars illustrate protein structures based on amino acid sequences. Then, they analyze the signaling pathway in different-colored mice populations. This allows them to...
PBS
Investigating Seasonal Temperature and Precipitation Variations
Weather seems unpredictable, but is it really? Learners collect weather data from online interactives and build data displays. They use their displays to identify temperature and precipitation patterns in different areas.
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Climatic Changes
Investigate the greenhouse effect and global warming with this weather worksheet: scholars describe the seasonal variations of temperature and day length at its greatest and its least. Then they describe the effects of El Nino and how...
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Magnetism
Attract your class to magnetism with this straightforward presentation. Using bullet points and simple phrases, viewers are taught the basics of magnetism. There are no pictures or diagrams to help explain, so you might want to add a few...
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Selection and Variation in the Egyptian Origami Bird
Using origami paper birds, your biology class will experiment with mutations and natural selection to determine wing position, length, and width. It would be helpful to provide a worksheet to go with the activity that includes a...
The Kennedy Center
Fairy Tale Variations
Here are two great lessons that work together and are inspired by the Stephen Sondheim musical Into the Woods. Young writers and actors will retell the story of "The Frog Prince" through games, improvisational script writing, and song....
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Kernels of Wisdom: Investigating Natural Variations in Corn
Here is a brain-popper! Corn, or more appropriately, maize, was intentionally domesticated by humans around 9,000 years ago and over a period of hundreds to thousands of years! Genetics and botany researchers have collaborated to find...
Curated OER
Distance, Numbers and Data
For this distance worksheet, students solve problems involving distance, rate, and variation. This two-page worksheet contains four problems.
Hawaiʻi State Department of Education
Theme and Variation
The dance elements of body, energy, space, and time are the focus of a lesson on movement and theme. The class follows along as the teacher shows them a new dance that has a theme. They practice the dance, and then change one element in...
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