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Lesson Plan
Curated OER

Area Unit

For Teachers 9th - 11th
Students solve the area for parallelograms,squares, rectangles, trapezoids, and triangles. In this geometry lesson, students compare and contrast two dimensional shapes and apply their properties to solving real life scenarios. This is a...
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Lesson Plan
Curated OER

Rhombi, Kites, and Trapezoids

For Teachers 9th - 12th Standards
Students identify the number of diagonals for each polygon. In this geometry lesson plan, students identify the polygons based on their diagonals and the way it intersect. They create visuals using the navigator to see the changes in the...
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Worksheet
Curated OER

Find the Surface Area of the Triangle

For Students 9th - 10th
For this geometry worksheet, learners are asked to solve for the surface area of a triangle and a trapezoid. They are fiven the height and base. There are 2 questions with an answer key.
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Lesson Plan
Curated OER

Geometry in the Real World

For Teachers 8th
Eighth graders complete a unit of lessons on basic geometry concepts. They participate in a variety of activities, culminating in a project that involves publishing a booklet or a poster that presents the major geometry concepts from the...
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Worksheet
Curated OER

MCC - 1106 Word Search

For Students 9th - 10th
Use this geometry instructional activity to have learners locate and identify various vocabulary terms related to mathematics. There are seven words/phrases located in the puzzle.
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Lesson Plan
Curated OER

Marshmellow Geometry

For Teachers 5th - 10th
Students explore a variety of geometric shapes, name them, and list their characteristics. The shapes are transposed into structures and checked for accuracy.
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Lesson Plan
Curated OER

Areas of triangles, trapezoids, and rhombi

For Teachers 10th - 12th
Learners solve geometry problems. In this area and perimeter instructional activity, students use formulas to solve problems from the textbook. 
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Lesson Plan
Curated OER

Finding Areas of Polygons- Extra Practice Worksheet

For Teachers 7th - 9th
In this geometry worksheet, students practice finding the area of 11 polygons using diagrams which include units in both standard and metric measurement. They solve for the area of 11 polygons using words that describe the polygons that...
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Lesson Plan
Willow Tree

Perimeter of Common Geometric Figures

For Students 8th - 11th Standards
Help learners understand that perimeter and circumference are one in the same. Learners apply their skills to determine the perimeter/circumference of triangles, rectangles, and circles. They then use the same strategy to find the...
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Lesson Plan
Curated OER

Shapes from Shapes

For Teachers K
Geometric shapes are really cool. Examine triangles, quadrilaterals, trapezoids, rhombuses, parallelograms, pentagons, and hexagons with your class. They draw large shapes and small shapes then compare them to understand their shapely...
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Lesson Plan
Curated OER

Geometry Review Quiz

For Teachers 6th - 8th
Students conduct a review that is done right before having a geometry quiz. They cover major topics that are part of the assessment. They use review cards as notes to pass to one another to reinforce the concepts before putting them away...
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Lesson Plan
Curated OER

Geometry Review

For Teachers 7th
Seventh graders explore basic geometric definitions involving angles, area, and circumference. To reinforce basic geometric concepts, they play a "lightning Flash" card game. Students discuss chores or jobs that require the use of...
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Interactive
Curated OER

Coordinate Geometry

For Students 6th - 8th
For this geometry worksheet, learners calculate the midpoint and distance between two points. They use the correct formula to solve the area and perimeter of polygons. There are 20 multiple choice questions with an answer key.
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Lesson Plan
Curated OER

Tricky Traps

For Teachers 9th - 11th
Students create identify properties of trapezoids. In this geometry lesson, students calculate the area of given trapezoids and review the area formula for parallelograms. They draw a correlation between the area of a trapezoid and that...
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Lesson Plan
Curated OER

Investigation-Looking at Polygons

For Teachers 8th
Eighth graders plot points and investigate polygons. They locate a point, using ordered pairs of integers on the coordinate plane. Students compare geometric measurements and computations on coordinate axes as they are applied to...
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Lesson Plan
Curated OER

Linear/Planar Geometry - Week 5

For Teachers 12th - Higher Ed
In this plane geometry worksheet, students combine the basis of plane geometry and linear problems to solve problems. They determine total surface area, the length of a line, and the sum of the edges of a three-dimensional figure. This...
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Lesson Plan
Curated OER

Geometry and Quilting

For Teachers 4th
Fourth graders combine geometry and language arts skills while examining quilt-making. After identifying the geometric shapes contained in quilts, they write stories to encompass the quilt border. Students conclude by creating and...
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Interactive
Curated OER

My Test Book: Geometry Skills 2

For Students 5th - 7th
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding geometry skills. Students may submit their answers to be scored.
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Lesson Plan
Curated OER

Area of Composite Figure.

For Teachers 10th
Tenth graders predict the shape of a geometric figure in 3D. In this geometry lesson, 10th graders construct 3D shapes to perfect their knowledge of measuring and predicting. This assignment is also available as an online interactive...
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Worksheet
Curated OER

Effects of Changing Dimensions Proportionally

For Students 9th - 10th
In this geometry worksheet, students describe the effect of a proportional change on the perimeter or circumference and area of the given circles or quadrilaterals.  The one page worksheet contains ten problems.  Answers are included. 
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Lesson Plan
Curated OER

Quadrilateral Attributes

For Teachers 7th - 8th
Students classify quadrilaterals. In this quadrilateral lesson, students identify the characteristics of quadrilaterals. They write their findings in a journal. Students use geoboards to create quadrilaterals from given descriptions.
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Lesson Plan
Illustrative Mathematics

Overlapping Squares

For Teachers 5th - 7th Standards
The objective of this activity is to find the percent of the area of a two squares overlapping. Mathematicians find the ratio of area for the part that overlaps to the rectangle formed. The final answer is a percent as a rate per 100....
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Activity
Curated OER

Life in a Geometrical Town

For Teachers 5th - 6th
In this geometry worksheet, students create a map that uses various geometrical concepts. The final project is the creation of a "geometrical town." Rubric for grading is included.
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Lesson Plan
Curated OER

Effects of Changing Dimensions Proportionally

For Teachers 10th
In this geometry worksheet, 10th graders examine the effect of changing the dimensions of a figure proportionally on the perimeter, circumference, and area.  The one page worksheet contains six problems.  Answers are  included.