Worksheet
Curated OER

Problems in Context

For Students 6th - 11th
In this Pythagoras' Theorem learning exercise, students read through an explanation of how to solve problems with Pythagoras' Theorem and answer 4 questions in the explanation. Then, students use Pythagoras' Theorem to answer 6 problems....
Lesson Plan
Curated OER

Getting into Shape

For Teachers 4th - 6th
Students identify 3-D geometric shapes through different pieces of artwork. They examine and identify segments and angles. Students act out shapes and create a piece of artwork. Additional cross curriculum activities are listed.
Lesson Plan
Curated OER

Learning by Logic - Total Surface Area

For Teachers 3rd - 6th
Geometers calculate the area of plane surfaces using the formulas for the area of a square, rectangle, and triangle. They develop the formula for calculating the total surface area of two geometric solids: the cube and rectangular prism.
Worksheet
Curated OER

Polynominoes

For Students 9th - 10th
In this polynominoes worksheet, students solve 9 different types of polynominoes problems. First, they identify that a polynominoe is a polygon made from squares of the same size and connected to each square. Then, students determine how...
Activity
1
1
Illustrative Mathematics

Midpoints of the Sides of a Paralellogram

For Teachers 9th - 12th Standards
This task asks learners to prove that the segment joining the midpoints of two sides of a parallelogram is both congruent and parallel to an adjacent side of the parallelogram. The activity would be good to use in a discussion about how...
Activity
101 Questions

Pizza Doubler

For Teachers 6th - 8th Standards
Double the pizza? What a great deal! Young pizza enthusiasts investigate two different coupons, one that doubles the radius and one that doubles the sector angle of a slice. They determine which coupon is the better deal.
Lesson Plan
Curated OER

Scoring Guide for the Algebra 2/Trigonometry Test Sampler

For Teachers 9th - 12th
Students take an Algebra II/Trigonometry sample test.  In this Algebra II/Trigonometry sample sample test instructional activity, students take a sample test for Algebra 2/Trigonometry.  Students solve 39 multiple...
Worksheet
Curated OER

Lengths of Horizontal and Vertical Line Segments

For Students 5th - 7th
Use this lengths of horizontal and vertical line segments practice worksheet to have learners sharpen their problem solving skills as they solve six story problems.
Activity
Illustrative Mathematics

Same Base and Height, Variation 1

For Teachers 5th - 7th Standards
Four triangles are depicted for learners to construct on a geoboard. They compute and compare the areas, and so meet one of the sixth grade Common Core standards for geometry. Note that the set of triangles does not include a right...
Assessment
Curated OER

2007 U.S. National Chemistry Olympiad Part II

For Students 9th - 12th
Eight multi-step chemistry problems, including analyzing a titration, writing equations, predicting products and limiting reagents, calculating concentrations of ions, and using stoichiometry to solve for unknowns in reactions make up...
Lesson Plan
Curated OER

Motion in Two Dimensions

For Teachers 9th - 12th
Two activities employ the use of kinematic equations for determining projectile ranges. They both require the use of a toy dart gun. Included in this resource are both the teacher's guide and student laboratory sheets. This is an...
Lesson Plan
Curated OER

The Legendary Raptors

For Teachers 9th - 12th
How are raptors and airplanes alike? Combine science and language arts in this fun and interactive project. Young scientists research the animal in order to design their own aircraft, and compete in a contest for farthest, fastest, and...
Lesson Plan
Curated OER

Refraction B2—When is Light Reflected Internally?

For Students 9th - 12th Standards
Physics is phun in this instructional activity. Young physicists use a lightbox to test how and where light is refracted and reflected as it travels through transparent materials. Angles of incidence and refraction, sine of both...
Instructional Video14:29
2
2
Flipped Math

Addition Postulate

For Students 9th - 12th Standards
Add a little algebra to the geometry. Class members learn about the Addition Postulate for segments and angles. The pupils use their knowledge of solving equations to find lengths of segments and measures of angles. Individuals apply...
Interactive
Scholastic

Study Jams! Similar Figures

For Students 5th - 8th Standards
Discover how triangles are congruent based on their sides, angles, and proportionality. Learners explore the ways to determine similarity at their own pace, and then they practice afterwards with an assessment. 
Instructional Video11:52
2
2
Flipped Math

Reference Triangles

For Students 9th - 12th Standards
It is all about where the side is located. Pupils use their knowledge of angles in standard position to find reference angles. They use the Pythagorean Theorem to find lengths along a terminal side of an angle to determine the exact...
Instructional Video19:21
2
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...
Unit Plan
Radford University

Parallel Lines Cut by a Transversal

For Teachers 9th - 12th Standards
Use the parallel lines to find your way. After first reviewing geometric constructions and the relationships between angles formed by parallel lines and a transversal, young mathematicians write proofs for theorems relating to parallel...
Performance
Radford University

Where Should We Sit?

For Teachers 9th - 12th Standards
Where's the best seat in the house? Given a diagram of a movie theater, pupils determine the best seats based on the viewing angle. They use inscribed angles to justify their choices.
Lesson Plan
EngageNY

Construct a Perpendicular Bisector

For Teachers 9th - 10th Standards
How hard can it be to split something in half? Learners investigate how previously learned concepts from angle bisectors can be used to develop ways to construct perpendicular bisectors. The resource also covers constructing a...
Interactive
Concord Consortium

Pendulum

For Students 9th - 12th
Add some zing to your swing! Explore pendulum motion through an engaging interactive. Physical science scholars specify the pendulum's mass, rod length, and starting angle before they observe the resulting angle graph.
Instructional Video9:36
2
2
Flipped Math

Proving Lines Parallel

For Students 9th - 12th Standards
Show it can all be proved. Scholars learn the converses of the properties of parallel lines. Using the converses, pupils determine which lines are parallel based on angle measurements and practice using a flow proof to show that two...
Lesson Plan
Teach Engineering

Designing a Spectroscopy Mission

For Teachers 9th - 12th Standards
In this mind-bending activity, young engineers explore this question of whether or not light actually bends. Using holographic diffraction gratings, groups design and build a spectrograph. The groups then move on research a problem...
Lesson Plan
Curated OER

True North, Magnetic North

For Teachers 4th - 8th
Students explain why compass angles need to be corrected for regional magnetic variation. They observe the difference between magnetic and true north. Each student measures the angle of variation for a town in a different state.

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