Curated OER
Classifying Triangles
This presentation shows how triangles are classified by angle measurement and length of sides. It reviews isosceles, scalene, obtuse, right, and acute classifications and includes questions for students to classify some of the triangles...
Curated OER
Biography of a Star: Our Sun's Birth, Life, and Death
Students examine how astronomers use parallax to determine the distances of stars in the Sun's neighborhood. They construct a pinhole protractor, and measure angles and calculate distances.
Curated OER
Measuring Angles
Third graders describe an amount of turn from a particular position to another using the 'circular' benchmarks of 0, ++, ++, ++, and full turn. Estimation language such as 'just about', 'between', 'not quite', 'just over', and similar...
Curated OER
The Trig to Soccer
Students analyze angles applied to a penalty kick in a soccer game. Based on dimensions of the goal, and the penalty area, students determine where the better chance of scoring lies.
Curated OER
Angle Terms Word Search Puzzle
In this geometry worksheet, students find thirteen terms associated with angles. The terms include parallel, right, congruent, and degrees.
Curated OER
Angles: 90, 180, 270, 360 Degrees
In this geometry worksheet, students solve 4 problems in which an angle is analyzed. Students mark the correct choice for each angle: 1/4 turn, 1/2 turn, 3/4 turn or full turn. There are no examples or instructions.
Curated OER
Angles-Greater Than, Less Than or Equal To 90 Degrees?
In this angles instructional activity, students determine whether given angles are greater than, less than or equal to 90 degrees, checking the appropriate answer. A reference web site is given for additional activities.
Curated OER
Angles
In this angles worksheet, 10th graders measure 10 different types of angles described in each problem. First, they determine whether two congruent angles form a supplementary figure. Then, students determine the degrees in an angle when...
Curated OER
Measure the Angle
Students measure angles. In this angle lesson, students draw angles. They use a protractor to measure angles and identify the angle as straight, right, acute, or obtuse.
Curated OER
What's Your Angle?
Students devise procedures for using a protractor to measure the number of degrees in an angle. They use inductive reasoning skills to construct their own method for effectively using the protractor to measure angles, as well as, make...
Curated OER
South Caro-angular
Young scholars classify and measure angles. In this angular lesson, students measure, contruct, and classify angles. They identify angles as acute, right, obtuse, and straight.
Curated OER
Exploring Angle/Pair Relationships
Students find missing angles and sides of triangles. In this geometry lesson, students create intersecting lines to measure angles. They use Cabri Software to create virtual angles.
Curated OER
Christmas Tree Angles
In this angles worksheet, students measure angles to make triangles and cut them out to make a Christmas tree. Students draw and cut 5 triangles to make their tree.
Curated OER
How High did My Rocket go?
Students shoot off a rocket and measure the trig ratios relation. In this geometry lesson, students practice using an inclinometer to figure out how high their rockets fly. They measure angles and height and relate it to gravity and...
Beacon Learning Center
Angles and Algebra
Middle schoolers calculate angle measure for triangles and complementary/supplementary angles. After a lecture/demo, students utilize a worksheet imbedded in this plan to gain practice.
Curated OER
Complementary Angles (A)
In this angles worksheet, students solve 6 problems in which the missing angle measurement in each set of complementary angles is calculated.
Curated OER
All Angles
In this angles worksheet, 7th graders study the intersected lines and find all angle measurements using the given angle. Students solve 6 problems.
Curated OER
Surface Area with Polydrons
Students explore measurements by analyzing geometric shapes. In this surface area lesson, students identify the terms volume, weight, perimeter and area in order to find the requested measurements of specific polygons. Students utilize...
Curated OER
Complementary Angles (B)
In this complementary angles activity, students use their geometry skills to identify the missing angle measurements in each set of 6 complementary angles.
Curated OER
Quadrilaterals and Angle Sums: Reteach
In this quadrilateral and angle sum learning exercise, learners review the five types of quadrilaterals. Students then find each missing angle measure and classify the figures as quadrilateral, parallelogram, rectangle, rhombus, square,...
Curated OER
STRETCHING SPRING
Students calculate the length, width, height, perimeter, area, volume, surface area, angle measures or sums of angle measures of common geometric figures. They create an equation of a line of best fit from a set of ordered pairs or...
Curated OER
Introducing Trigonometry
Eleventh graders explore the three basic trigonometric functions. In this trigonometry/Algebra II lesson, 11th graders use GeoGebra and the unit circle to define the ratios of sides is a right triangles as they examine the full domain...
K-5 Math Teaching Resources
Angles Template
Young mathematicians learn to see geometry from different angles with this simple printable resource. Providing multiple visual examples of angles, this simple document can be used as an instructional tool, a skills practice exercise, or...
Curated OER
Identify the Shape
10 this geometry worksheet, students identify the different angles created by polygons and name the shape created based on the number of sides. There is an answer key.
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