CK-12 Foundation
Square Roots and Irrational Numbers: Estimating Radicals
Try out a resource using triangles to estimate radicals. An interactive app allows learners to approximate some irrational numbers involving square roots. They find the two consecutive numbers that an irrational number lies between by...
CK-12 Foundation
Evaluation of Square Roots
Think outside the box and use an engaging, interactive app that shows the relationship between square roots and squares using an actual square. Pupils find that moving a slider increases the side length of a square and its associated area.
CK-12 Foundation
Use Square Roots to Solve Quadratic Equations: Plus or Minus
Get two answers from a single equation. Pupils use the interactive to take the square root of nine and see the graphical representation of the two solutions. Individuals realize that solutions to quadratic equations that are solved by...
CK-12 Foundation
Tangent Line Approximation: Estimating Square Roots
Estimating a square root is as easy as evaluating a linear equation. Using the derivative of the square root function, pupils calculate an estimation of square roots. Class members determine the equation of the tangent line at the value...
CK-12 Foundation
Evaluation of Perfect Square Roots: Neighborhood Park
Walking in the park can be good for the body and for mathematics skills. Young scholars use an interactive app to investigate the relationship between squares and square roots using a square with adjustable length. The program also takes...
CK-12 Foundation
Radical Equations: Geometric Visual of a Square Root
How can you draw a number? A set of questions takes learners through the reasoning for why a geometric construction can be drawn to represent the square root of a number. An interactive helps visualize the construction.
Curated OER
Review of Pre-Algebra
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...
Curated OER
Square Roots and Quadratics.
In this algebra worksheet, students solve for the square root and calculate and solve roots. There are 10 questions with an answer key.
CK-12 Foundation
Newton's Method
Use an iterative process to find an approximation of a square root. Pupils use the interactive to find an approximation to find the positive root of a quadratic function with Newton's method. With the graphs, learners position the...
Curated OER
Pythagorean Theorem
In this Pythagorean theorem worksheet, 9th graders solve and complete 8 different types of problems. First, they go to the given website and copy the picture shown. Then, students draw a right triangle using the straight line between the...
Curated OER
Solve Five Quadratic Equations Using the Quadratic Formula
In this solving quadratic equations instructional activity, students solve five quadratic equations by using the quadratic formula. Students also review using the discriminant, solving by factoring, and solving by completing the...
CK-12 Foundation
Lengths of Triangle Sides Using the Pythagorean Theorem: Find the Missing Side
What is the relationship between the sides of a right triangle? Learners use an interactive to create models of right triangles and view the relationship between the lengths of the sides. They finish by using the Pythagorean Theorem to...
Curated OER
Simple Past-Positive Sentences #2
In this simple past tense worksheet, learners use words and phrases given to form positive sentences in the given tense. Answers may be submitted online for review. ESL appropriate but not exclusive.
Curated OER
Method for Remembering the Coordinates of the Points in the First Quadrant on the Unit Circle
In this Unit Circle worksheet, students explore a method to help remember the coordinates of the points in the first quadrant on the unit circle. Answers are provided as well as a completed unit circle.
Curated OER
Five Quadratic Formula Problems With Examples
In this quadratic equation learning exercise, students solve five quadratic equations using the quadratic formula. Several fully worked examples are provided.
Curated OER
Quadratic equations
In this Algebra II worksheet, 11th graders use the quadratic formula to solve quadratic equations. The interactive lesson contains explanation and worked examples with five practice problems. Answers are not included.
Curated OER
Discriminant and Quadratics
In this quadratic equation, students find the discriminant using the formula given and identify how many solutions a quadratic function will have. There are 3 problems with answers and examples.
Curated OER
Quadratic Equations
In this Algebra I/Algebra II worksheet, students investigate the various methods that can be used to solve quadratic equations. The one page interactive worksheet contains instruction, worked examples and five practice problems. ...