Education Development Center
Geography of the Number Line
It's more than just numbers on a line, its an organizational, mental math machine to help learners understand the value of numbers. The tool is handy when introducing positive and negative integers to see their values and relationships....
Messenger Education
Star Power! Discovering the Power of Sunlight
It takes less than 10 minutes for energy from the sun to travel 90 million miles to Earth! In the first installment in a series of four, groups measure the amount of solar radiation that reaches Earth. They then discuss how this is...
EngageNY
Introduction to Simultaneous Equations
Create an understanding of solving problems that require more than one equation. The lesson introduces the concept of systems of linear equations by using a familiar situation of constant rate problems. Pupils compare the graphs of...
EngageNY
Geometric Interpretations of the Solutions of a Linear System
An intersection is more than just the point where lines intersect; explain this and the meaning of the intersection to your class. The 26th segment in a 33-part series uses graphing to solve systems of equations. Pupils graph linear...
EngageNY
Systems of Equations Leading to Pythagorean Triples
Find Pythagorean Triples like the ancient Babylonians. The resource presents the concept of Pythagorean Triples. It provides the system of equations the Babylonians used to calculate Pythagorean Triples more than 4,000 years ago. Pupils...
EngageNY
Ratios of Fractions and Their Unit Rates 2
Remodeling projects require more than just a good design — they involve complex fractions, too. To determine whether a tiling project will fit within a given budget pupils calculate the square footage to determine the number of tiles...
Curriculum Corner
Spring Fling Math and Literacy Centers
Fling your class into spring with a set of math and literacy center worksheets. Learners will enjoy the variety with sheets that practice multiplication, missing addends, before/after and more/less than number comparisons, as well as...
National Institute of Open Schooling
Environmental Concerns
Every year, more than 14 billion pounds of garbage is dumped into the oceans of the world, most of which is plastic and toxic to ocean life. Lesson 32 in the series of 36 focuses on environmental concerns, specifically pollution. Under...
Illustrative Mathematics
Representing Half of a Rectangle
Did you know one half of a rectangle be represented in more than one way? Young mathematicians choose the rectangles that represents one half with an instructive worksheet.
K12 Reader
Order of Adjectives: Add Another
Some nouns need more than one adjective to adequately describe them. Using a reference poster that puts twelve categories of adjectives in order, class members fill in the blanks to complete eight sentences.
Concord Consortium
Gestation and Longevity
Is the gestation length of an animal a predictor of the average life expectancy of that animal? Learners analyze similar data for more than 50 different animals. They choose a data display and draw conclusions from their graphs.
Concord Consortium
Stocking the Shelves
How many ways can you stock a shelf? It's probably more than you think! Young scholars use data in a frequency table to determine how many ways to stock a shelf given a specific constraint for types of groups. They then repeat the task...
Illustrative Mathematics
Making 22 Seventeenths in Different Ways
There is more than one way to determine a sum. Scholars demonstrate their understanding of the decomposition of fractions similar to the decomposition of whole numbers. The short task requires pupils to determine which sums of fractions...
Howard Hughes Medical Institute
Classroom Activities: What Is My Carbon Footprint?
Everyone leaves an impression on the world—some more than others. An interactive lesson has learners analyze their lifestyles and the impact they have on the environment. The analysis includes travel, food, and energy categories and ends...
Corbett Maths
Reciprocals
Reciprocals is more than just flipping a fraction. Pupils watch a video to see how to find the reciprocal of any number. Individuals practice finding reciprocals of numbers including whole numbers and decimals.
Constitutional Rights Foundation
The Troubled Elections of 1796 and 1800
Congress does more than create new laws. Political scientists delve into the elections of 1796 and 1800 to understand how political parties, the Electoral College, and personal agendas affected the election process. The resource also...
NASA
Water Works on a Blue Planet
Keep within a water budget. Learners find out that less than 2.5% of Earth's water is available to drink—and that there is a fixed amount of water. Scholars read an interesting article comparing the available water to a game of Monopoly...
Bowland
Hot Under the Collar
It is close enough for all practical purposes. Pupils see two methods to convert degrees Celsius to degrees Fahrenheit, one with exact numbers and another using estimation. Learners review both methods and determine when the estimation...
Flipped Math
Multiply Polynomials
Do not let the distributive property foil you. Individuals hear about the FOIL method to multiply two binomials and how it is nothing more than the distributive property. Pupils learn two methods of multiplying any two polynomials. They...
Health Smart Virginia
What Is It Like to Be You?
Two poems, "What it is like to be you" and "I am more than what you see," provided young scholars an opportunity to reflect on how others see them versus how they see themselves. After reading the poems, individuals write their stories...
Flipped Math
Points, Lines, and Planes
Geometry is more than just vocabulary. Pupils learn the basic geometric definitions and how to identify and name points, lines, and planes. Though the first lesson is packed with related vocabulary, scholars experience four postulates...
Flipped Math
Prove Triangles Similar
Show more than one way to prove similarity. Scholars learn three different methods to show two triangles are similar, Angle-Angle, Side-Side-Side, and Side-Angle-Side. Pupils practice applying these methods to determine whether two given...
Curated OER
Ten More or Ten Less
Adding and subtracting 10 is easy once you understand the tricks! Learners first write numbers that are ten more than two double-digit numbers. Then, they find numbers ten less than two other double-digit numbers. An explanation on the...
Curated OER
Color the Bubbles (More, Less, Equal)
Combine coloring and number comparisons with your youngsters. They use color coding to identify numbers that are less than, greater than, or equal to five. The 20 numbers are enclosed in bubbles, making this more of a fun activity. Note...