Worksheet
Curated OER

Area of a Trapezoid

For Students 7th - 8th
In this trapezoid worksheet, students examine given data and compute the area of trapezoids.  They identify the base and height of each figure.  This one-page worksheet contains 18 problems.  Answers are provided.
Worksheet
Curated OER

Regents Exam Questions G.G.9: Planes

For Students 9th - 12th
In this planes worksheet, students solve 3 short answer problems. Students determine a true statement given lines perpendicular to a plane.
Worksheet
Curated OER

Polygons Homework

For Students 9th - 12th
For this polygons worksheet, students identify polygons that contain given parameters.  They write definitions of polygons.  Students find the measurement of exterior and interior angles of regular polygons.  This two-page...
Interactive
Curated OER

Similar Polygons

For Students 7th - 8th
For this similar polygons worksheet, students identify the corresponding sides of polygons.  They use proportions to solve problems.  Students determine the scale factor of similar figures.  This two-page worksheet...
Lesson Plan
Curated OER

Pyramid in The Desert

For Teachers 9th - 11th
Students investigate the Sierpinski triangle and calculate the ratio and area of the triangle. In this fractals instructional activity, students calculate parts of a Sierpincki triangle. They use Google Earth to help them construct the...
Lesson Plan
Curated OER

Finding the Area of Regular Polygons

For Teachers 9th - 12th Standards
Students analyze relationship between the increase in polygons sides and a circle. In this geometry lesson plan, students relate the size of the central angle of a polygon, to a circle. They compare the formula for the area of a polygon...
Worksheet
Math Mammoth

Polygons

For Students 7th - 8th
In this polygon activity, students identify similar polygons and corresponding sides. They use a compass and ruler to construct polygons, determine the sum of the angles in a given polygon. There are 4 multi-step problems in this...
Worksheet
Math Mammoth

Similar Figures

For Students 7th - 9th
For this similar figure learning exercise, students identify objects that are similar. They draw polygons according to instructions and determine their similarity. This one-page learning exercise contains four multi-step problems.
Worksheet
Curated OER

Sum of Interior Angles

For Students 10th
In this sum of interior angles learning exercise, 10th graders solve 10 different problems that are related to determining the sum of various interior angles in figures. First, they determine the sum of the interior angles of a...
Worksheet
Curated OER

Area

For Students 7th - 8th
In this area worksheet, students solve and complete 20 different problems that include the measurement of various figures. First, they determine the area of each of the triangles, parallelograms and trapezoids. Then, students determine...
Worksheet
Curated OER

Interior and Exterior Angles of Polygons

For Students 10th
In this angles of polygons instructional activity, 10th graders solve and complete 18 different problems that include determining various interior and exterior angles. First, they determine the measure of various angles described in the...
Worksheet
Curated OER

Properties of Quadrilaterals

For Students 9th - 11th
In this properties of quadrilaterals worksheet, students use the properties of quadrilaterals to find the perimeter, angle measurement or length of a missing side of a given polygon. Examples and explanations of the properties are...
Worksheet
Curated OER

Polygon Area Review Sheet

For Students 9th - 12th
In this polygon area worksheet, students answer 8 questions involving the area of several polygons. Students are given various details of the polygon and must find lengths of various polygons.
Worksheet
Curated OER

Similar Figures

For Students 7th - 10th
In this similar figure learning exercise, students find the length of a missing side of given triangles and quadrilaterals.  This six-page learning exercise contains 24 problems.  Answers are provided on the last page.
Lesson Plan
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Alabama Learning Exchange

Pennies, Pennies and More Pennies

For Teachers 9th - 11th Standards
Learners determine the number of pennies needed to fill a room.  In this pennies lesson plan, students work in groups to determine the number of pennies needed to fill a room.  They compute the probability of the head of a pin...
Lesson Plan
Curated OER

Algebra/Geometry Institute Summer 2007 - Perimeter of Polygons

For Teachers 6th
Sixth graders find the perimeters of polygons and use perimeters to form polygons. For this perimeter lesson, 6th graders study vocabulary associated with finding perimeter such as polygon, line segment, variable, and formula. They make...
Lesson Plan
Curated OER

Identify Polygons: Algebra/Geometry Institute

For Teachers 8th
Eighth graders classify geometric figures.  In this polygon lesson, 8th graders identify given geometric figures.  They compare and contrast different polygons.  Students name line segments, identify parallel lines, and...
Lesson Plan
Texas Instruments

Points, Lines, and Planes

For Teachers 9th - 12th Standards
Students solve problems dealing with points, lines and planes. In this geometry lesson, students differentiate between parallel lines and planes. They find the intersection of lines and planes.
Lesson Plan
Curated OER

Napolean Triangle

For Teachers 9th - 11th
Learners investigate the Napoleon triangle theory. In this polygon lesson plan, students  differentiate between the boundary points, interior and lattice point of a polygon. They apply concepts of equilateral triangles to solve...
Worksheet
Curated OER

Ellipse Lab

For Students 7th - 9th
Leading the students to draw a representation of ellipses of planets, this handout will help understanding the planet movement around the sun.  There are ten questions about the analysis of those orbits and a conclusino specifically...
Interactive
Concord Consortium

3D Exploration of Bound Antibody and Antigen

For Students 9th - 12th Standards
Our body manufactures antibodies that are the exact shape for the antigens it encounters. The simulation shows a 3-D model of an antibody and antigen pairing. It allows young scientists to explore the complementary shapes.
Interactive
Royal Society of Chemistry

Sub-shells

For Students 6th - 12th
Is your class in a quandary over quantum numbers? Change things up by adding games to the mix! Science scholars discover the shape, number of electrons, and number of orbitals in the s, p, and d sub-shells using an interactive.
Lesson Plan
EngageNY

Surface Area II

For Students 7th Standards
Examine the surface area of composite figures using an exploratory approach. As a continuation of the previous lesson plan of the 29-part series, young scholars develop plans for finding the surface area of composite figures. Examples...
Worksheet
Curated OER

Mental Math Problems

For Students 3rd - 5th
In this sequencing worksheet, learners make a number sequence chart by following the given rule, continue number sequences through seven additional numbers, and continue patterns. Students solve five multiple answer problems.

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