Worksheet
Curated OER

Congruence Statements

For Students 10th
In this congruence statements worksheet, 10th graders solve and complete 16 various types of problems. First, they complete each congruence statement listed. Then, students graph each set of points on the coordinate plane provided. They...
Lesson Plan
Curated OER

Where in the World

For Teachers 4th - 5th
Students explore the global grid system. In this globe instructional activity, students identify latitude and longitude lines and how these can tell the coordinates of any place. They use the Internet to find the exact coordinates for...
Worksheet
Curated OER

New York Exam

For Students 9th - 11th
In this algebra worksheet, students review the basic concepts of algebra and linear equations. They solve polygons and shapes for their area and perimeter. There are 27 questions.
Lesson Plan
Curated OER

Ovals, Rectangles, Squares, and Triangles

For Teachers 3rd - 5th
Students identify geometrical shapes displayed in photographs of everyday objects in a metropolitan setting.
Worksheet
Curated OER

Geometry, Word Search Puzzle

For Teachers 6th - 8th
In this math worksheet, students look for the words that are related to the math words used in the practice of geometry. They also practice spelling.
Lesson Plan
Curated OER

Planets, Constellations, and Stars

For Teachers 6th - 8th
In this space science worksheet, students find the answers to the research questions that focus on the stars, planets, and constellations.
Lesson Plan
Curated OER

Properties of Special Parallelograms

For Teachers 8th - 10th
Students identify properties of parallelograms. In this geometry lesson, students label polygons as parallelogram or not. They define and label the properties of a kite.
Lesson Plan
Curated OER

Constructions of Isosceles and Equilateral Triangles

For Teachers 4th - 9th
Students explore the difference between drawing and constructing a triangle utilizing The Geometer's Sketchpad on the computer. They create, develop and script constructions for both isosceles and equilateral triangles. Each student has...
Lesson Plan
Curated OER

Observing the Outer Planets

For Teachers 9th - Higher Ed
Learners observe the outer planets. In this science lesson, students use a telescope locate the outer planets of the solar system. Learners create a video of their observations.
Worksheet
Curated OER

Conbination Lock Problem

For Students 8th - 10th
In this algebra activity, learners solve a word problem sing algebraic equations. They figure put how to unlock a combination lock. There is an answer key with this problem.
Lesson Plan
Curated OER

Team Defense

For Teachers 6th - 12th
Students communicate and work in team fashion on defense. They use correct rotations on defense against a fast break or undermanned situation. In addition, they practice footwork drills, triangle shifts and "Three on Two" drills to...
Worksheet
Curated OER

Worksheet 21

For Students 11th - Higher Ed
In this math worksheet, students practice using the appropriate formula developed to solve the word problems. They find the correct operation to find the answer to each.
Lesson Plan
Curated OER

Math Lesson Plan: Bread Bag Tabs: Patterning

For Teachers 1st - 3rd
Students explore the concept of patterning. In this patterns lesson, students use recycled plastic tab closures as well as their problem solving skills to identify and create patterns.
Worksheet
Curated OER

Family Activity: Triangles and Quadrilaterals

For Students 6th - 8th
In this triangles and quadrilaterals worksheet, students solve 7 short answer problems. Students find objects around the house that are constructed from triangles, parallelograms, trapezoids, squares, rectangles. Students sketch the...
Lesson Plan
Curated OER

Clocks and Time

For Teachers 2nd - 4th
Young scholars construct clocks and then learn how to read a clock face, tell time, and determine how much time has elapsed.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Counting Right Angles in a Turn

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] Practice counting the number of right angles within sections of a circle in this learning module. Includes video demonstration of a sample problem [2:36] and...
Lesson Plan
Homeschool Math

Homeschool Math: Lines, Rays, and Angles

For Teachers 4th - 5th Standards
This fourth-grade geometry lesson teaches the definitions for a line, ray, angle, acute angle, right angle, and obtuse angle. We also study how the size of the angle is ONLY determined by how much it has "opened" as compared to the whole...
Interactive
Mangahigh

Mangahigh: Shape: Right Angle in a Semi Circle Rule

For Students 6th - 9th Standards
Test your knowledge of the measurement of angles in a triangle.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Gpe Slopes and Circles

For Teachers 9th - 10th Standards
The purpose of this task is to lead students through an algebraic approach to a well-known result from classical geometry, namely, that a point X is on the circle of diameter AB whenever angle AXB is a right angle. This consists of...
Activity
TeachEngineering

Teach Engineering: Robo Clock

For Teachers 3rd - 4th
Students learn various topics associated with the circle through studying a clock. Topics include reading analog time, understanding the concept of rotation (clockwise vs. counter-clockwise), and identifying right angles and straight...
eBook
CK-12 Foundation

Ck 12: Algebra Ii: 4.2 Right Triangle Trig Extended to Circles With a Model

For Students 9th - 10th Standards
This section explores the relationship between right triangles, circles, and trigonometry. It investigates how a right triangle that is set inside a circle and rotates around the circle is connected to trigonometric functions and their...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Gpe.5 Triangles Inscribed in Circle

For Teachers 9th - 10th Standards
For this task, students use ideas about linear functions to determine when certain angles are right angles. They use the fact that two lines (if not vertical or horizontal) are perpendicular when their slopes are inverse reciprocals, as...
eBook
CK-12 Foundation

Ck 12: Algebra Ii: 4.3 the Unit Circle

For Students 9th - 10th Standards
Activities in this lesson explore how to identify the coordinates where special right triangles intersect with the unit circle in all four quadrants, use both degrees and radians to identify angles, and explore angles of different sizes...
Handout
Purple Math

Purplemath: Inverses of Trigonometric Ratios

For Students 9th - 10th Standards
You know that you can take side lengths and find trig ratios, and you know you can find trig ratios (in your calculator) for angles. What is missing is a way to go from the ratios back to the original angles. And that is what "inverse...