Curated OER
The Rates of Chemical Reactions
In this chemistry activity, students select answers to 8 multiple choice questions from the drop down box. They identify the factors affecting rates of chemical reactions.
CK-12 Foundation
Factor Polynomials Using Special Products: Difference of Two Squares
Factoring patterns are not magic! Show your classes how to model the difference of two squares' factors using an area model. Learners manipulate the width and length of two squares to represent the polynomial a^2-b^2. They use the model...
Virginia Department of Education
Scientific Notation
Writing a number is all in the notation. The resource introduces the class to scientific notation. Pupils learn the process of taking a very large or small number in standard form and write it in scientific notation. To practice,...
EngageNY
Relationships Between Quantities and Reasoning with Equations and Their Graphs
Graphing all kinds of situations in one and two variables is the focus of this detailed unit of daily lessons, teaching notes, and assessments. Learners start with piece-wise functions and work their way through setting up and solving...
Cornell University
Friction
Friction and gravity are always at odds! Learners complete a set of activities to explore the relationship between friction and gravity. Groups make conclusions about the factors that affect the amount and type of friction between surfaces.
Nuffield Foundation
Microscale Investigations of Catalase Activity in Plant Extracts
Use indirect measurements to monitor metabolic activity in plant cells. Scholars understand that cells with a higher metabolic rate have a higher concentration of catalase enzyme. They use this information to compare metabolic rates of...
West Contra Costa Unified School District
Properties of Multiplication
Unlock the keys to fluent multiplication with this upper-elementary math lesson. After an introduction to the five properties of multiplication, students match cards with different math problems to posters describing each...
Illustrative Mathematics
Equivalent Expressions
Here is a straight-forward problem of multiplying two binomials with a twist. It is up to algebra learners to decide how to turn this product of sums into a sum of products. However, it is not the quadratic that is the answer; it is the...
Education Fund
Fear the Scarce Resources
In a life or death situation, what resources would you choose to survive—and why? A zombie attack simulation teaches learners the concepts of scarcity and resources in regards to economics. The hands-on activity requires individuals to...
Curated OER
The Poinsettia: Native Mexican Plant vs. U.S. Christmas
Learners compare and contrast native Mexican poinsettia plants to those marketed in the United States. They watch a PowerPoint presentation, and listen to a version of the legend of the poinsettia. Students then create a paper pinwheel...
Curated OER
Products, Multiples, Factors
In this products, multiples, and factors worksheet, students complete various activities where they solve problems for products, multiples, and factors of numbers. Students complete 14 problems.
Curated OER
Bud the Spud Moves West
As part of a unit on Canadian agriculture, this focuses on how potato farms have increased in the west. Pupils participate in a discussion about the impact of consumer demand on production, and then they read an article about potato...
Curated OER
Identifying Terms, Factors, and Coefficients
What are terms, factors, and coefficients? This slideshow provides definitions and examples of various parts of algebraic expressions, and provides guided practice problems in writing and identifying parts of algebraic expressions for...
Curated OER
Introducing the Concept: Exponents and Powers of Ten
Fifth and sixth graders gain information about the powers of ten and exponents. They participate in a teacher demonstration of how using the powers of ten helps learn the place value chart. Pupils create their own place value chart.
Curated OER
Multiplying Exponents vs. Powers of Powers
Use the power of a power property to solve exponential functions. The lesson refers to differentiating between multiplying or adding exponents to find the value, and how to find the product of a power of a power.
Curated OER
Split a Factor
Take the mystery out of multiplicaton with worksheets like this one. Learners find a mental math strategy for more difficult equations by splitting a factor, multiplying out the terms, and adding the products. An example explains this...
College Board
2007 AP® Macroeconomics Free-Response Questions
What happens when stock market prices fall and many investors sell off their holdings? Scholars explain the effects as they answer the question from the AP® exam. The resource provides other authentic College Board questions that include...
Noyce Foundation
Surrounded and Covered
What effect does changing the perimeter have on the area of a figure? The five problems in the resource explore this question at various grade levels. Elementary problems focus on the perimeter of rectangles and irregular figures with...
Curated OER
Multiplication PowerPoint
Providing a step-by-step explanation of two-digit multiplication, a list of vocabulary words associated with this concept, and great examples, this resource would be a terrific classroom addition. Besides the set of of simple...
Curated OER
The Future of China's Economic System
Ninth graders explore China's economic system and the future of the system. They define economic terms, research websites to find examples of how China is developing into a mixed economy system and how it competes with the U.S. for...
National Wildlife Federation
Quantifying Land Changes Over Time in Areas of Deforestation and Urbanization
Is qualitative or quantitative research more convincing when it comes to climate change? In the eighth activity during this 21-part series, scholars begin by performing a quantitative analysis of deforestation and urbanization. Then,...
Curated OER
Factoring the Difference of Two Perfect Squares
In this Algebra I/Algebra II worksheet, students factor the difference of two perfect squares. The one page worksheet contains five multiple choice questions. Answers are included.
Curated OER
Factoring Perfect-Square Trinomials and Differences of Squares
In this algebra worksheet, learners factor expressions into the product of two binomials. Four of the problems involve factoring perfect square trinomials. The remaining eight problems require students to factor problems that are the...
EngageNY
Fraction Multiplication and the Products of Decimals
Class members come up with a hypothesis on the number of decimal digits in the product of two decimals. Learners work in groups to complete several decimal multiplication problems. The results help groups develop a conjecture on the...