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Lesson Planet Article
Curated OER

Lesson Plans that Measure Up

For Teachers 3rd - 6th
You can use creative ways to teach angle lessons that will meet the needs of all students.
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Lesson Plan
Curated OER

Trig River

For Teachers 6th - 8th
Middle schoolers calcute distances using trigonometry and angle measurements. They estimate the width of the Trig River, measure it and compare their results with their classmates. They collaborate with a group to research and find the...
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Lesson Plan
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Alabama Learning Exchange

Inner and Outer Planets

For Teachers 3rd - 5th Standards
Students explore the solar system. For this planets lesson, students learn about the other planets in the solar system. They watch a video clip from National Geographic on the solar system, compare and contrast the planets and create a...
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Worksheet
Curated OER

Exploring Pendulums

For Students 7th - 10th
In this exploring pendulums worksheet, students experiment with pendulums they make in the lab. They vary the length of the strings and the weights to observe the changes in the pendulum's amplitude and frequency. They answer 3 analysis...
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Lesson Plan
Curated OER

Electric Hoist Problem

For Teachers 6th - 8th
Learners convert angle measures between degrees and radians. They are given a copy of the task sheet with a graphic to help describe the situation. Pupils review the angle and arc relationship in a circle related to length of the...
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Lesson Plan
Curated OER

Applications of Triangles

For Teachers 9th - 11th
Students apply the properties of a right triangle. In this triangle lesson, students describe and compare radians to degrees. They solve problems using the properties and ratios of a right triangle.
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Lesson Plan
Curated OER

When a Ruler is Too Short

For Teachers 9th - 12th
Students measure distances using parallax. In this math lesson, students explain how this method helped astronomers with their studies of the solar system. They determine the length of their arm using parallax and compare it with other...
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Lesson Plan
Curated OER

Midsegments of a Triangle

For Teachers 9th - 12th Standards
Students analyze midsegments of triangles in this instructional activity. They use Cabri Jr. software to observe the relationships between interior angles and midsegments of triangles. Specific instructions for creating this...
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Lesson Plan
Curated OER

Shape Up

For Teachers 6th - 8th
Students explore differents types of triangles and quadriaterals. In this polygon lesson, students  model identify and compare two and three dimensional geometric figures. Students create tangrams and discover the difference between...
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Lesson Plan
Curated OER

Only the Shadow Knows

For Teachers 6th - 8th
Students become familiar with the causes for formation of shadows. They create shadows, compare the size and shape of the shadow with the actual object, engage in shadow play theatre, and discover what happens to shadows when there is...
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Lesson Plan
Curated OER

I. M. Pei and the Geometry of the NGA

For Teachers 5th - 8th
Students compare design elements in neoclassical and modern architecture. They review knowledge of triangles and quadrilaterals and design a geometric pattern using Pei's polygons They create a city plan using a variety of lines and...
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Lesson Plan
Curated OER

Triangle Inequality Theorem

For Teachers 9th - 12th Standards
High schoolers investigate the relationship between angle measures and sides of a triangle and the relationships among the three sides of a triangle. The use of technology (Cabri, Jr.) allows learners to make and test conjectures as they...
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Lesson Plan
Key Curriculum Press

Triangle Inequalities

For Teachers 8th - 11th Standards
Properties about triangles are explored in this lesson. Geometers make conjectures about the length of a triangle's sides, the length of the angles in relation to the length of the sides, and the measure of the exterior angles of a...
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Lesson Plan
Curated OER

Indirect Measurement

For Teachers 9th - 10th
Students measure and apply their knowledge of proportion to solve problems. In this geometry instructional activity, students measure using a meter stick, small mirror and measuring tape. They compare and contrast their measurements to...
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Lesson Plan
Curated OER

Flip's Flag

For Teachers 5th
Fifth graders apply the symmetry and angle properties of polygons and use fractions to express the relationships between the areas of rectangles, squares, and triangles. They analyze various country flags and develop mathematical...
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Worksheet
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Curated OER

Radian Measure

For Students 11th - 12th
For this Algebra II/Pre-calculus worksheet, students explore radian measure of an angle and convert between degree and radian measure. The seven page worksheet contains explanation, examples, and nineteen multi-part problems. Answers are...
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Lesson Plan
Curated OER

Geometry is Fun and EverywhereGeometry, You Don’t Care? Geometry is Fun and Everywhere

For Teachers 3rd
Third graders investigate shapes in our world. In this geometry lesson, 3rd graders describe plane and solid shapes and identify angles, solid objects and lines of symmetry. Students use online resources, graphic organizers and conduct...
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Lesson Plan
Curated OER

Exploring the Soul of India

For Teachers 9th - 11th
Students use websites to obtain information on the relationship between religion and current issues in India. They compare the information with pre-20th century India.
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Lesson Plan
Curated OER

Geometric Shapes

For Teachers 5th - 7th
Students identify polygons.  In this geometric shape lesson, students explore the characteristics of polygons.  They identify polygons, and classify triangles according to their sides and angles.  Students create a poster representing...
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Lesson Plan
Curated OER

Silhouette Outlines

For Teachers 4th - 6th
Students create a silhouette by directing light at a person. They change the light, distance from the person and angle to make the shadows different. They are to describe the relationship between the light source and the object.
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Lesson Plan
Curated OER

Shadow Games

For Teachers K - 5th
Students create different shapes by putting light on different objects. They change the distance from the object, the light source and angles to make the shadows different. They are to describe the relationship between the light, object...
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Lesson Plan
Curated OER

Measurement

For Teachers 8th - 10th
Students explore the necessity for standards of measurement and measure length, volume, mass and angles. In this measurement lesson plan, students use their hand and foot to measure objects in the room. They compare their measurements to...
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Lesson Plan
Curated OER

Objects Race 500

For Teachers 4th - 5th
Students explore the concept of "shape affects speed" through a series of experiments. For this physics lesson, students participate in an experiment in which various objects are released on an inclined plane. Speed and distance are...
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Lesson Plan
Curated OER

Volume and Mass: Identify the Attribute

For Teachers 1st - 3rd
Students rotate through five studying stations related to the attributes of volume and mass. They manipulate objects to explore mass, compare two masses by pushing and lifting, pack materials and fill containers, and pour liquids from...

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