Curated OER
Pythagorean Theorem Investigation
Eighth graders investigate the Pythagorean Theorem and practice applying the theorem to various triangles. Finally, in the next lesson in the sequence, 8th graders create a song or a story to help them remember the Pythagorean Theorem.
Curated OER
Treasure Hunt for Shapes
Students identify shapes in objects of everyday items. They are looking for circles, squares, triangles and rectangles. They draw each shape on a piece of paper and write the name of the shape underneath it to keep for future reference.
Curated OER
Tension and Compression
Students examine tension and compression by manipulating objects that are strong in each but not in both. Students apply their observations to the construction of a model of a beam bridge, suspension bridge, and inverted triangle...
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Geometry: Area
Learners visit various websites to calculate the area of circles, triangles, rectangles, trapezoids, and parallelograms. They explore math problems and play interactive games dealing with geometry.
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Borders, Bindings, & Edges: The Art of Finishing Your Quilt
Students explore a variety of methods used to finish quilts. They explore selection, planning, and the design process, color, proportion and scale when finishing a quilt. Students create corner triangle borders, narrow borders, pieced...
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Manage Soil
Students identify and classify soil ypes according to data on the soil triangle. Given examples, students identify soil conservation practices, using criterion assessment instrument. When giving a case situation involving soil...
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Math: Tangents
Students discover how to recognize tangents and how to use their properties. They investigate and use the properties of angles, arcs, chords, tangents, and secants. Students use two tangents and the properties of similar triangles to...
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Angles, Parallel Lines, and Polygons
Students examine how to investigate polygons using an instrument of their own construction. They should be able to prove the general formula for the number of degrees in any polygon (including a triangle). Finally they investigate an...
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Cannon Balls
Second graders investigate 2 and 3 dimensional objects. They discuss the characteristics of the triangle. Students create sequential patterns and describe the rule for their pattern.
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Turn Symmetry
Fourth graders observe geometric patterns to determine if they show rotational or point symmetry. They participate in the a demonstration lesson with a triangle. They create their own designs that show rotational or point symmetry.
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Biology Tessellations
Students review three types of polygons that are triangles, squares, and hexagons. They use a computer program to draw various types of tessellations. The students use the drawing of a honeybee as inspiration.
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Fractions
First graders are asked to put their fingers on their triangles that looks like the one that is on the overhead. They are asked to tell how they would write a fraction for this one part. Students go through step one until all of the...
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What's Your Function?
Second graders read the rules of how they can balance the scale by placing beans in the square, circle, and the triangle. Next, they balance 12 beans using the scale and then try to balance it with 15 beans, and then 18 beans. They then...
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Five Fat Turkeys
Students make a tree trunk and branches using brown construction paper. They make thumbprint turkeys using a choice of ink color. Students make the eyes from wiggle eyes and of black ink. They make the beak out of any color foamie triangle.
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Shapes
In this early childhood math worksheet, students practice distinguishing shapes as they match the square, triangle, circle, pyramid, and cube shapes to the appropriate names in the right-had column.
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The Percussion Family
Second graders complete a unit to learn about the percussion family and African and Latin drumming. In this percussion lesson, 2nd graders complete 9 lessons to learn about the percussion family. Students learn to use shakers and sticks,...
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The Pythagorean Theorem
Students explore the concept of the Pythagorean Theorem. In this Pythagorean Theorem lesson, students discuss how the Pythagorean Theorem is used in their lives. Students imagine building a lean-to that is 3 ft. high and 4 ft. wide;...
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Cut, Construct and Think - 6
Pupils identify polygons and calculate perimeter. In this geometric shapes lesson, students complete a worksheet identifying various polygons and calculating the perimeter of triangles and quadrilaterals.
Pennsylvania Department of Education
Seeing Doubles
Learners work with dominoes to recognize the number of spots on each side as they relate to addition facts. In this seeing doubles lesson, students make triangle shaped flash cards for the double facts. Learners represent the correct...
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The X-33 and the X-38
Learners explore the relationships among the lengths, areas, and volumes of similar solids. They also discover what effect doubling the dimensions of a figure has on the resulting area.
Curated OER
What's in a Shape?
Learners explore shapes by making and using tangram sets. They discover how tangram pieces are related to one another and determine how many different combinations of triangles, squares, and parallelograms in tangram sets can make a...
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Geo Jammin' By DeSign - Day 6, Lesson 32: Appliqué-tion of Learning
Second graders hand stitch three different appliqué stitches using triangles as a motif.
Curated OER
Mapping the Black Atlantic
Students map African states during different time periods. They also map natural resources in the European, American and African states, overlying the component routes of the Triangle and Brazilian trade.
Curated OER
Setting Solutions
Students piece together a quilt from leftover blocks. They problem-solve ways to incorporate random block designs into a visually pleasing quilt design. They used sashed sets, coping stripes and triangles to work out the design.
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