Curated OER
Algebra/Geometry Institute: Area of Polygons
Students find the area of polygons. In this area of polygons lesson, students find the area of parallelograms, rectangles, squares, and other polygons. They identify each given figure and determine the appropriate formula...
Curated OER
Piet Mondrian Art
Students study Piet Mondrian's artwork. In this visual arts lesson, students analyze the use of lines and colors by Mondrian in his art. Students create their artwork in the style of Mondrian.
Curated OER
Perimeter
Fifth graders create math word problems. In this geometry lesson, 5th graders define perimeter and discover how to find the perimeter of a rectangle, a square and a regular polygon. Students write word problems on finding the...
Print and Practice
Triangles and Rectangles
In this triangle and rectangle activity, learners color triangles red and rectangles blue in a given set of shapes. A reference web site is given for additional activities.
Curated OER
Customized Handwriting: the Square
In this customized handwriting: the square activity, 1st graders change style, font and text then print the activity to practice printing and color the picture.
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Properties of Geometric Shapes: All, Some or None
In this properties of geometric shapes activity, 4th graders write the words all, some or no to complete twelve statements about the properties of the shapes.
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Use Measurement
In this measurement lesson, students follow the instructions to draw a sandbox on a grid. Students also respond to 2 short answer questions regarding the area question.
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How to Classify Quadrilaterals
For this how to classify quadrilaterals worksheet, 3rd graders choose words to describe 3 quadrilaterals and to complete 3 sentences about the shapes.
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Geometric Shapes
In this geometric shapes worksheet, students respond to 4 multiple choice questions that require them to identify triangles, squares, and rectangles.
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Geometry
In this geometry activity, students determine what if 6 different shapes are a circle, square, triangle or a rectangle. Students bubble in their answers.
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Identify Geometric Shapes
In this identify geometric shapes worksheet, students identify eleven shapes as either triangles, nonagons or quadrilaterals.
Curated OER
Circles and Squares
For this circles and squares worksheet, students try to make a circle by only using straight lines and a square. Students follow 4 sets of directions.
Math Salamanders Ltd.
2D Shape Sheet Rectangle
In this 2D shape/rectangle worksheet, students view a picture of a large rectangle. The worksheet has no other associated activities, but a reference website provides additional activities.
Math Salamanders Ltd.
2D Shape Sheet Parallelograms
In this identifying parallelograms worksheet, students look at the colorful shapes and identify the ones that have two pairs of parallel lines.
Math Salamanders Ltd.
2D Shape Sheet Trapezoids
In this trapezoids worksheet, students cut or count the number of trapezoids on the sheet. Students cut or count 15 different colored trapezoids.
Math Salamanders Ltd.
2D Shape Sheet Squares
In this squares activity, students can either count the squares or cut the squares on this sheet. Students cut or count 15 squares.
Curated OER
Let's Explore the World of Triangles and Quadrilaterals!
Second graders explore the features of triangles and quadrilaterals. In this lesson on triangles and quadrilaterals, 2nd graders rotate with their group to five different activities all exploring a different aspect of geometry.
Curated OER
Shape and Space: Transformations
Students explore transformations. In this mathematical transformations instructional activity, students define quadrilaterals, convert centimeters to meters, and complete a transformations worksheet.
Curated OER
Does the Area of the Quadrilateral Change?
Seventh graders complete activities to further their understanding of area formulas. In this area lesson, 7th graders watch as the teacher uses Polystrips to model parallelograms. Students find the area of a rectangle and answer...
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Scaling Up a Photograph
Students practice calculating dimensions of rectangles in a photograph activity. In this rectangle dimensions lesson, students complete the 'Making a Photographic Enlargement handout and watch a video about scaling up photographs....
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Triangles in Rectangle
In this geometric shapes worksheet, students cut out the triangles on the bottom of the worksheet and then paste them on the rectangle at the top of the worksheet.
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World of Quadrilaterals
Students define the importance of the properties of quadrilaterals. In this quadrilaterals lesson, students identify the general properties of and compare and contrast the properties of convex and concave quadrilaterals. Students also...
Curated OER
Anticipation/Reaction Guides and Discussion Groups
Seventh graders study geometric shapes around the classroom. In this geometry lesson plan, 7th graders discuss their answers in groups to the Anticipation/Reaction guide handout. Students complete the reaction side of the guide and...
Curated OER
Polygons
In this polygons worksheet, 10th graders solve and complete 27 various types of problems. First, they determine how many lines of symmetry a square has and if it is a parallelogram. Then, students find the number of lines of symmetry in...