Interactive
CK-12 Foundation

Factorization of Quadratic Expressions: Boxes for Factoring

For Students 9th - 11th Standards
Create rectangles from the terms of a trinomial. The interactive provides virtual algebra tiles for participants to use to create quadratic trinomials. Pupils use the tiles and arrange them into a rectangle to find the factors of the...
Lesson Plan
Curated OER

Factoring Perfect-Square Trinomials and Differences of Squares

For Teachers 8th - 9th
In this algebra worksheet, students 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...
Worksheet
Curated OER

Factoring Difference of Squares

For Students 8th - 9th
In this factoring difference of squares activity, learners solve 18 different problems related to factoring the difference of squares for each. First, they write their parentheses out and find the common factors of the squared number....
Lesson Plan
Illustrative Mathematics

Irrational Numbers on the Number Line

For Teachers 7th - 9th Standards
There are four irrational numbers that participants need to graph. Pi(π), -(½ x π), and √17 are easy to approximate with common rational numbers. On the other hand, the commentary describing the irrational number 2√2 is not...
Lesson Plan
Curated OER

Rooster's Off to See the World

For Teachers Pre-K - K
Young learners listen to the book Rooster's Off to See the World, and complete simple math activities using the book. In this simple math lesson, students read and list the animals in the book. They arrange animal picture squares using...
Worksheet
Curated OER

Area of Rectangles and Squares

For Teachers 3rd - 4th Standards
Find the area; scholars examine nine images of squares and rectangles with width, length, and units provided for each. They multiply double-digit numbers to find the area, writing it into the box provided. Because square units are...
Worksheet
Curated OER

Perimeters of Squares and Rectangles

For Teachers 2nd - 4th Standards
If you're looking for some perimeter practice problems for beginners, you've found them! Learners reference an example that takes them through the steps of finding the perimeter of a square or rectangle. Then, they complete nine on their...
Assessment
Charleston School District

Review Unit 5: Equations

For Students 8th - 9th Standards
It's time for them to show you what they've learned! The review provides a sampling of the different concepts learned throughout the eight-part series. Learners solve equations by combining like terms, applying the distributive property,...
Lesson Plan
Curated OER

The Very Busy Spider

For Teachers 3rd - 4th
Youngsters explore visual arts by participating in a geometry identification activity. They read the book The Very Busy Spider and identify the techniques spiders use to create webs. Have you ever noticed that their webs are geometric...
Lesson Plan
EngageNY

Perimeter and Area of Polygonal Regions in the Cartesian Plane

For Students 9th - 12th Standards
How many sides does that polygon have? Building directly from lesson number eight in this series, learners now find the area and perimeter of any polygon on the coordinate plane. They decompose the polygons into triangles and use Green's...
Interactive
CK-12 Foundation

Pythagorean Theorem to Classify Triangles: Missing Angles

For Students 8th - 12th Standards
Learn to use the Pythagorean Theorem with non-right triangles. Pupils use the interactive to discover the relationship between the lengths of sides for acute and obtuse triangles. They compare the squares of the sides of the triangles to...
Worksheet
Curated OER

Magic Squares

For Students 3rd - 4th
In this completing the magic squares instructional activity, students add the rows, columns, and diagonals to find the magic numbers. Students solve 4 problems.
Lesson Plan
Curated OER

Dividing Whole Numbers by the Power of Ten

For Teachers 5th Standards
Knowing how to properly place the decimal point when dividing by powers of ten is an important skill. Here is a lesson which should give your learners a good understanding of this technique. One nice thing about the lesson is the many...
Lesson Plan
West Contra Costa Unified School District

The Parallelogram Law

For Teachers 9th - 12th Standards
Use your pupils' sense of curiosity to explore the Parallelogram Law. Here is an activity that outlines a complete lesson plan from beginning to end, allowing pupils to follow a conjecture through to the proof stage.
Lesson Plan
Curated OER

The Distributive Property

For Teachers 7th - 9th
Students use a visual to introduce the Distributive Property. The lesson is chronologically numbered and follows a distinct plan. The class works with the teacher to complete the lesson. The plan is not written in a traditional way, but...
PPT
Curated OER

Mass Lesson

For Teachers 2nd - 3rd
It's not just a slideshow, it's a lesson on mass. First, learners complete a mental math warm-up, where they determine the number before and after a series of given numbers, then they form groups to weigh packages and compare mass....
Lesson Plan
Illustrative Mathematics

All vs. Only Some

For Teachers Pre-K - 2nd Standards
All shapes have certain defining attributes that set them apart from others. In order to understand this, young mathematicians look at examples and non-examples of triangles, rectangles, and squares, working as a whole class to create...
Lesson Plan
Teach Engineering

Discovering Relationships Between Side Length and Area

For Students 9th - 12th Standards
Consider the relationship between side length and area as an input-output function. Scholars create input-output tables for the area of squares to determine an equation in the first installment of a three-part unit. Ditto for the area of...
Organizer
Primary Resources

Venn Diagrams

For Teachers 3rd - 5th
Combine your lessons on Venn diagrams, probability, and multiples with several activities. After picking seven cubes, learners note the number of cubes that are blue and mark them in a Venn diagram. The next assignments prompt them...
Assessment
Noyce Foundation

Lawn Mowing

For Teachers 6th - 7th Standards
This is how long we mow the lawn together. The assessment requires the class to work with combining ratios and proportional reasoning. Pupils determine the unit rate of mowers and calculate the time required to mow a lawn if they work...
Worksheet
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Mathed Up!

Factors, Multiples, and Primes

For Students 4th - 7th Standards
Reinforce the concept of factors, multiples, and prime numbers with a 16-problem practice activity. Eight pages offer a variety of problem solving opportunities with clear objectives and tips for successful completion. 
Lesson Plan
Cornell University

Garden Math

For Teachers 4th - 5th Standards
Young scientists must put their math caps on and figure out what fraction of each flower is in a raised flower bed. They must problem solve to simplify the fractions, and then graph the amount of flowers that are in different flower beds.
Worksheet
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1
Math Drills

Solving Quadratic Equations

For Students 8th - 11th Standards
Need a solving quadratic equations with factoring instructional activity? Here it is! A page worth of problems all with a leading coefficient of 1 gives your class a beginners level approach to the topic. 
Lesson Plan
Curated OER

Hyperbolas: Sketching from the Equation

For Teachers 9th - Higher Ed
In this algebra worksheet, students sketch graphs of hyperbolas after solving equations to standard form and interpreting the center, vertices, foci, axis, asymptotes, and eccentricity from the equation. There are 58 questions.