Curated OER
Only the Shadow Knows
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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The Tangent Ratio
Students calculate the tangent ratio given a right triangle. In this trigonometry lesson, students use a right triangle and the Pythagorean Theorem to solve problems.
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Probability and Geometry
Students practice calculating probability, see how geometry can help solve probability problems and explore platonic solids.
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Trigometric Ratios
This lesson requires a worksheet that is not connected. It is integral to the lesson.
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Balancing Act
Second graders identify the attributes of various shapes and estimate the weight of the objects. In this geometry lesson, 2nd graders identify the attributes of concrete objects and use a pan balance to weight them.
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Roadkill Museum
Students use roadside kill to use taxidermy skills, become comfortable working with animals and dissecting.
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Rep Tiles
Third graders use pattern blocks of one shape at a time to try to create a similar shape. They compare the perimeter of the new figure with the perimeter of the original shape and look for a pattern. Students use the pattern to predict...
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Study Buddies: Congruent Figures
For this math worksheet, students will work with a coach to determine which shapes (in a box of shapes) are congruent. Students will follow a step-by-step process and notes are provided for the coach.
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Slingshot Characterization Experiment
Students set up and conduct a scientific experiment to demonstrate data collection. In this scientific process lesson, students complete an activity with the specific objective of using a slingshot to fire a t-shirt into the crowd at a...
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Longshore Current
Learners are posted at the beginning and end of a 10-meter long line parallel to the ocean and are instructed to look straight ahead towards the water. The student at the beginning of the line uses a stopwatch, goes to the water's edge...
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Surface Area and Volume
Students are introduced to the notion of surface area and volume, learn the terminology used with surface area and volume and have experimented with the surface area and volume of different prisms.
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That's So Square
Students familiarize themselves with the three most common geometric shapes: circles, triangles and parallelograms. They sketch, sort, and name the shapes.
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Shortest Distance Between Points and Lines
Learners use technology to determine the shortest between two points in a plane. They are required to support their analytic explanations with visual illustrations.
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Introduction to Fractals: Infinity, Self-Similarity and Recursion.
This instructional activity introduces students to the ideas involved in understanding fractals. They develop a sense of infinity, self-similarity and recursion and
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Geometric Fractals and the Chaos Game
Students define fractals and patterns. They explore how a seemingly random process can result in a pattern. Students practice probability and fractions skills by playing the chaos game online.
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Earthquakes
Students inspect the causes and effects of earthquakes and examine how seismic waves travel. In this earthquake instructional activity, students determine where earthquakes happen and why, before determining how to build an earthquake...
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The Bending and Bouncing of Light
Students investigate refraction and reflection of light. In this light lesson, students perform 3 activities to observe light interacting with matter by using a flashlight. They explore refraction using a glass of water and reflection...
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Introducing Powers and Models
Young scholars construct two dimensional models to illustrate squared numbers. For this geometry lesson, students use graph paper and an x/y axis to build squares exponentially. Young scholars identify powers and relationships between...
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What did I find?
Students excavate an artifact. In this archaeology lesson, students get a bucket filled with dirt and a broken up artifact. They work in groups to take it out and to find what its purpose was.
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The Three Little Pigs' Straw House
Second graders design and sketch a model house. In this technology instructional activity, 2nd graders construct their house using teacher provided materials. They present their finished project and explain their design in class.
Texas Instruments
REAL LIFE REAL WORLD Activity - Surveyor
Learners investigate surveying in this secondary mathematics lesson. They will explore a real world application of geometry and trigonometry as they create a plot plan using a geometry utility and calculate the area of the land parcel.
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Intertidal Zones
Students explore intertidal zones. In this intertidal zones lesson plan, students work in small groups and use ready-made materials to create a model of intertidal zones. Resources are provided.
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Clocks and Time
Students construct clocks and then learn how to read a clock face, tell time, and determine how much time has elapsed.
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SAS Similarity Theorem
Students identify and use the similarity theorem. In this geometry lesson, students differentiate between congruent and similar triangles. They solve problems using the computer modifying shapes by dragging.