Lesson Plan
Las Cumbres Observatory

The Cosmic Distance Ladder: Parallax

For Teachers 11th - 12th
Scientists don't have a ruler long enough to measure to the stars, so they rely on math. Scholars learn to calculate the distance from Earth to a star using the parallax method. They use angle measures from different perspectives to...
Lesson Plan
Curated OER

Math: Tangents

For Teachers 9th - 10th
Students discover how to recognize tangents and how to use their properties. They investigate and use the properties of angles, arcs, chords, tangents, and secants. Students use two tangents and the properties of similar triangles to...
Lesson Plan
Curated OER

Properties of Logarithms

For Teachers 11th
Eleventh graders investigate logarithms.  In this Algebra II lesson, 11th graders explore the properties of logarithms that are used to simplify expression and solve equations.  Students confirm their conjectures regarding the...
Lesson Plan
Curated OER

Math: Equal Area Triangles

For Teachers 6th - 8th
Pupils examine a math worksheet and determine how to divide a single triangle into four of equal area. Using geometric principles, they sketch two additional ways to divide into into four equal triangles. To conclude, students explain...
Lesson Plan
Curated OER

Pattern Search

For Teachers 3rd
Third graders review the commutative and associative property in mathematics. Using a worksheet, they work together to identify the patterns between the 32 triangles. To end the lesson, they create their own array and exchange it with...
Lesson Plan
Curated OER

What Does It Matter?

For Teachers 5th - 8th
Young scholars match definitions with vocabulary words and learn basic facts about matter. Then, they see how to determine the physical characteristics of matter. They determine the mass, volume, and density of objects using appropriate...
Lesson Plan
Curated OER

The Difference of Two Squares

For Teachers 8th - 10th
Learners practice the use of number properties through exploring the difference of two squares, creating an array model for multiplication, and work with decimal numbers. In groups, students explore patterns in an array and determine...
Lesson Plan
Curated OER

As the Bird Flies

For Teachers 7th - 8th
Students investigate the properties of lines and congruent triangle theorems as well as apply geometric properties and relationships to real-world mathematical problems. Given two different scenarios, they examine maps that have been...
Lesson Plan
Curated OER

The Commutative Cookie

For Teachers 3rd
Third graders investigate the commutative properties of multiplication and focus upon the setting of cubes in the correct patterns to solve problems. They differentiate between numbers that have multiple factors and prime numbers....
Lesson Plan
Curated OER

Representing Relationships with Equations

For Teachers 2nd - 3rd
Learners explore Cuisenaire Rods.  In this pre-algebra lesson, students work with a partner to generate addition problems with the sum of ten using Cuisenaire Rods. Learners construct examples of the Commutative Property using...
Lesson Plan
Curated OER

Rice and More Rice

For Teachers 5th
Fifth graders explore problem solving strategies for mathematical estimation. In this math problem solving instructional activity, 5th graders predict how many grains of rice are in a jar, practice establishing and looking for patterns...
Lesson Plan
Curated OER

Animal Classification Unit

For Teachers 3rd
Third graders study how to group animals by their physical characteristics. They examine how animals have adapted to have their needs met by the environment.
Lesson Plan
Curated OER

Design a Track

For Teachers 7th - 9th
Learners investigate track and field dimensions, measure an actual track, and construct a scale model. The use of a meter stick, dimensional analysis, and the application of the distributive property to variables forms the main focus of...
Lesson Plan
Curated OER

Slippery, Slippery Ice

For Teachers K - 2nd
Young scholars investigate how salt affects ice by experimenting in class.  In this water properties lesson, students utilize a penny, salt and pans of ice to examine the sliding ability of a penny across a layer of ice.  Young...
Lesson Plan
Curated OER

Addition & Subtraction Properties With Integers

For Teachers 6th
Sixth graders use a number line to solve addition and subtraction problems. In groups, they play a game of "Human Number Line Relay." They use a deck of cards to randomly create addition and subtraction equations and physically walk a...
Lesson Plan
Curated OER

Exponential and Logarithmic Equations

For Teachers 11th
In this algebra worksheet, 11th graders solve exponential and logarithmic functions using properties of exponents and logs. There are 56 questions with an answer key.
Lesson Plan
Curated OER

Subtracting Monomials and Polynomials

For Teachers 10th - 12th
Students subtract monomials and polynomials by combining like terms. In this advanced subtraction lesson, students define the rules and properties for subtraction of polynomials. They apply the rules for addition to help with the rules...
Lesson Plan
Discovery Education

Exploring Geometry

For Teachers 6th - 8th Standards
Middle schoolers construct a three-dimensional model of a city using both similar and congruent figures and geometric transformations. City must have at least ten buildings with each building labeled and may be constructed out of paper...
Unit Plan
Buffalo State

Adding and Subtracting Integers Unit

For Teachers 6th - 7th Standards
Just because one integer is larger than another doesn't mean it will make sense right away. Go beyond note taking and show learners, through the use of algebra tiles and a Four-Pan Algebra Balance, how the numbers relate to one...
Lesson Plan
Pennsylvania Department of Education

Problem Solving with Fractions

For Teachers 4th - 6th
Solve story problems using fractions or decimals. Then, determine the reasonableness of answers using estimation.The detailed instructional activity includes essential questions, vocabulary, a materials list, and links to related units.
Lesson Plan
Curated OER

Fraction Strips

For Teachers 4th - 5th
Get a handle on equivalent fractions through the use of manipulatives. Using area models, sets, and length manipulatives like fraction strips and Cuisenaire rods, the class will gain a deeper understanding of equivalent fractions....
Lesson Plan
Curated OER

Fractions and Paper Folding

For Teachers K - 11th
In this fraction lesson, students manipulate paper by folding it to create different shapes and sizes, they explore the concept of fractions, and discuss their observations as a class. This is a great lesson for getting students...
Lesson Plan
Curated OER

Properties of Color

For Teachers 2nd
Second graders explore the properties of primary color and investigate what happens when primary colors are mixed. They listen to the story The Crayon Box That Talked and list the colors. They experiment mixing primary colors and...
Lesson Plan
Curated OER

Extra Practice 6: Using the Distributive Laws and Factoring

For Teachers 9th - 10th
In this practice worksheet, students solve multiplication equations by using the distributive property, factoring, and the integer rules. They solve 32 problems on this one-page worksheet.

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