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Lesson Plan
Curated OER

Angles and Arcs

For Teachers 9th - 10th
Students discuss the sum of central angles and use string to create them on circles. They find the measure and length of both minor and major arcs. Students give examples of concentric, similar, and congruent circles and congruent arcs.
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Lesson Plan
Curated OER

The Trig to Soccer

For Teachers 9th - 10th
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.
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Worksheet
Curated OER

Reviewing Azimuth

For Students 8th - 10th
Combine angles and the compass rose in this labelling activity. Geographers begin by labeling the cardinal directions on a compass template, along with the degrees corresponding to each. They then add the azimuthal directions, labeling...
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Worksheet
Curated OER

Measurement Activity

For Students 7th - 10th
In this geometry worksheet, students use a ruler and a protractor to measure the lengths of the line segments and size of the angles that make up a drawing of a Christmas tree.  The one page worksheet has one problem.  Answers are not...
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Lesson Plan
Curated OER

Angle Benchmarks

For Teachers 6th
Sixth graders discuss the characteristics of specific angles and then use the information to to identify and estimate given angles. The class goes outside, identifies north, and turns a specified amount of degrees. Using a given compass,...
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Lesson Plan
Curated OER

Inscribed Angles

For Teachers 9th - Higher Ed
Students analyze inscribed angles and intercepted arcs and explore the relationships between the two. They investigate the properties of angles, arcs, chords, tangents, and secants to solve problems involving circles.
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Lesson Plan
Curated OER

Evaluating Observations and Measurements

For Teachers 3rd
Third graders review the scientific method and how and in which steps scientists use observations and measurements. Then as a class, they hypothesize which ramp will send the car the farthest. They break into groups and send cars down a...
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Lesson Plan
Curated OER

Reflection of Light With Two Plane Mirrors- Double Mirrors Placed at a Number of Angles

For Teachers 5th - 8th
Students place two plane mirrors at different angles to experiment with reflection. They make kaleidoscopes and periscopes.
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Lesson Plan
Curated OER

Angle Pairs

For Teachers 9th - 12th
Students practice identifying right, vertical, and adjacent angles using a Smartboard. They then determine measurements of all of the angles when only one measurement is given.
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Lesson Plan
Curated OER

Identifying Angles

For Teachers 4th
Fourth graders examine the various characteristics of angles. In groups, they identify angles in the real world and which angles are used for buildings. To end the lesson, they use their bodies to represent the different angles for a...
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Lesson Plan
Curated OER

Angle Aerobics

For Teachers 3rd
Third graders review angle criteria and then stand. They demonstrate with their hands each type of angle called out by the teacher: right, acute, or obtuse. Music is added and students follow teacher in an angle aerobics class peppered...
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Lesson Plan
Curated OER

Estimating Angles

For Teachers 6th
Sixth graders estimate the measurement of angles and linear distance from one point to another. Using a specified website, 6th graders play a game of "Golf" where they enter the angle and distance a ball must be hit. Upon completion of...
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Lesson Plan
Curated OER

Measurement: Length, volume, and temperature

For Teachers 4th - 8th
Young scholars determine the temperature of the water in a cup, measure the length of a piece of cardboard, and measure out an appropriate volume of water. This task assesses student's abilities to perform measurement and reporting skills.
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Worksheet
Curated OER

Classifying Angles

For Students 10th
In this classifying angles worksheet, 10th graders solve and complete 35 various types of problems. First, they match each type of angle with its correct description. Then, students determine whether the given lines or planes are...
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Worksheet
Curated OER

Angles

For Students 6th - 7th
In this math worksheet, students find the measurements of angles created by intersecting lines. Students are first presented with two intersecting lines, then a pair of parallel lines with one intersecting line. The second page has an...
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Lesson Plan
1
1
NASA

Foam Rocket

For Teachers K - 12th Standards
When going for distance, does it make a difference at what angle you launch the rocket? Teams of three launch foam rockets, varying the launch angle and determining how far they flew. After conducting the series of flights three times,...
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Lesson Plan
EngageNY

From Circle-ometry to Trigonometry

For Students 10th - 12th Standards
Can you use triangles to create a circle? Learners develop the unit circle using right triangle trigonometry. They then use the unit circle to evaluate common sine and cosine values.
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Interactive
National Council of Teachers of Mathematics

Scale Factor

For Students 6th - 12th Standards
Does doubling mean everything doubles? Learners adjust the scale factor between two rectangles. Using the calculated measurements, pupils investigate the ratios between the lengths, perimeters, and areas of the rectangles.
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Instructional Video5:42
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Flipped Math

Unit 3 Review: Parallell and Perpendicular Lines

For Students 9th - 12th Standards
Learners watch a quick review on the Parallel and Perpendicular Lines unit. The pupils work through ten review problems ranging from identifying types of angles formed by parallel lines and transversals to writing equations of parallel...
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Worksheet
Curated OER

To Be a Triangle Or Not To Be a Triangle?

For Students 10th
In this triangles worksheet, 10th graders solve and complete 10 different problems that include applying the Triangle Inequality Theorem. First, they use the illustrated triangles and the data table to test the theorem. Then, students...
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Lesson Plan
Curated OER

Toothpick Triangles

For Teachers 4th - 8th
Learners draw a chart (included in the lesson) to use with their investigation. They review terminology of triangles and receive toothpicks to use in the lesson. Beginning with three toothpicks, students form a triangle. They complete...
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Instructional Video19:21
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2
Flipped Math

Intercepted Arcs

For Students 9th - 12th Standards
Intercept the class's learning on circles. Pupils learn the relationship between intercepted arcs and inscribed angles. The scholars use that information to find the relationship of angles in an inscribed quadrilateral and an angle...
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Lesson Plan
Curated OER

"Polly"gon Pockets

For Teachers 3rd - 5th Standards
Explore polygons with your elementary learners. Divide the class in 12 to configure the polygon puzzle before them. They list the attributes of each type of polygon they see, and if there's time, they jump on the interactive website...
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Lesson Plan
Illustrative Mathematics

Two Wheels and a Belt

For Teachers 9th - 10th Standards
Geometry gets an engineering treatment in an exercise involving a belt wrapped around two wheels of different dimensions. Along with the wheels, this belt problem connects concepts of right triangles, tangent lines, arc length, and...

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