Lesson Plan
Curated OER

Triangles

For Teachers 7th
In this geometry worksheet, 7th graders identify the sides and angles of triangles, examine the Pythagorean Theorem, and complete 2 tables with square numbers. They apply the theorem to find the value of the hypotenuse of 2 triangles.
Worksheet
Curated OER

Roots of Real Numbers

For Students 11th
In this roots of real numbers worksheet, 11th graders solve and complete 12 different problems. First, they find the square root of a variable. Then, students simplify each root of a given real number.
Worksheet
Curated OER

Rational and Irrational Numbers

For Students 8th - 9th
Here is a rational and irrational numbers worksheet in which learners identify 10 different expressions related to various types of numbers. They determine whether each expression given is a rational or irrational number.
Lesson Plan
Curated OER

Rational, Irrational and Square Roots

For Teachers 7th - 8th
Students identify rational and irrational numbers and their use in mathematical functions. Through demonstration, students discover the difference between rational and irrational numbers and their use. Using estimation skills students...
Lesson Plan
Curated OER

Discovering Math: Computation

For Teachers 5th - 7th Standards
Middle schoolers add, subtract, multiply, and divide rational numbers. They find the square and the cube of numbers. They create a game incorporating computation on rational numbers. Everyone works together to write and evaluate...
Worksheet
Curated OER

Comparing Numbers Up to 10 Step-by-Step Lesson

For Students K
A teacher resource, this scripted lesson details how to explain to learners the steps involved in determining which numbers in a series are bigger or smaller than a given number. The referenced pupil activity is not included.
Lesson Plan
Curated OER

Math Game Using A Tic-Tac-Toe Board

For Teachers 1st - 6th
Elementary schoolers play a math game using a Tic-Tac-Toe Board. This simple idea can be used with virtually any grade level. A team of learners are the "O's," and the other is the team of "X's." Each time a team gets a problem correct,...
Worksheet
Curated OER

Building Numbers 11-40

For Students 2nd - 3rd
In this building numbers instructional activity, students fill in the table using the base ten and square unit blocks to build numbers. Students write the numbers into the tens and ones block.
Lesson Plan
Curated OER

Third Grade Math Practice

For Teachers 3rd - 4th
In this math practice worksheet, students complete a total of 20 problems that use a variety of 3rd grade concepts. An answer key is given. 
Worksheet
3
3
Coloring Squared

Halloween Ghost Advanced Division

For Students 3rd - 5th Standards
Get in the Halloween spirit and practice math skills with a color-by-numbers learning exercise that—when all division problems are solved—uncovers a ghost appearing behind a gravestone that reads R.I.P.
Lesson Plan
Curated OER

Solving Radical Equations

For Teachers 9th - 10th
In this algebra worksheet, pupils solve 10 equations for the given variable. Each problem involves numbers under a radical sign.
Lesson Plan
Curated OER

Math Practice-Grade 2

For Teachers 2nd - 3rd
In this grade 2 math practice worksheet, students complete a set of 24 problems using a variety of grade 2 concepts. Answers are included.
Activity
Illustrative Mathematics

Zeroes and factorization of a non polynomial function

For Teachers 10th - 12th Standards
Functions behaving badly: the squaring function and the absolute value function are both zero at x=0. Yet when you divide each by x, different things happen. Here, your class will explore each scenario as a means to adding depth to their...
Worksheet
1
1
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. 
Interactive
Curated OER

Review of Pre-Algebra

For Students 7th - 9th
Middle and high schoolers review topics covered Pre-Algebra. They solve problems questions dealing with exponents, square roots and absolute value. They use the rules of divisibility and identify prime numbers. This two-page on-line...
Lesson Planet Article
Curated OER

Real-World Applications to Imaginary and Complex Numbers

For Teachers All
Authenticate imaginary numbers through real-life applications in science, math, and literature.
Worksheet
Curated OER

Fraction Number Lines 4

For Students 3rd - 5th Standards
Third, fourth, and fifth graders use this learning exercise to review fractions on a number line. Basic and tricky fractions are used to complete the missing fractions! For your lower-level learners, consider providing little squares of...
PPT
Curated OER

Doubling and Halving

For Teachers 1st - 3rd
A cute square-headed robot is here to help your class understand doubling and halving. Numbers go in his head and come out his ear doubled. Those same number then go in his ear and come out his head halved. This is a great way to show...
Interactive
Scholastic

Study Jams! Area of a Triangle

For Students 4th - 6th Standards
Even though there is a wide variety of different triangles in the world, knowing a single equation allows us to find the area of each and every one of them. Follow along with this step-by-step presentation as Zoe clearly models how to...
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...
Worksheet
Curated OER

Properties of Real Numbers

For Students 11th
In this algebra worksheet, 11th graders perform operations with real numbers. They simplify roots and rationalize the denominators by factoring. They calculate the absolute values of the roots. There are 11 questions.
Lesson Plan
Curated OER

Are You a Radical or Just a Square Root?

For Teachers 4th
Fourth graders discover that the inverse of squaring is finding a square root. and that square roots are found in many formulas used in many disciplines. They utilize a worksheet imbedded in this plan that gives them quite a bit of...
Worksheet
Curated OER

Integrated Algebra Practice: Square Roots

For Students 8th - 10th
In this square roots worksheet, students calculate the square roots of whole numbers and rational numbers. Seven problems have multiple choice answers. The remaining 13 problems are short answer. One problem involves graphing a function....
Lesson Plan
Curated OER

Ten Square Root of Negative Numbers and Ten i to a Power Problems

For Teachers 10th - 11th
In this i worksheet, students simplify square roots of negative numbers in ten problems and evaluate i to the given power in ten more problems.  The solutions are provided.