Curated OER
Cosine
In this cosine worksheet, students find the cosine of x for different measurements of triangles. Students complete 10 cosine problems.
Curated OER
Sine
In this sine worksheet, students use the trigonometry equation to find the sine of triangles. Students solve the sine for 10 triangle problems.
Curated OER
Triangle Puzzle
In this geometric shapes worksheet, students analyze an intricate design of lines. Students look for all the triangles and tell how many there are.
Curated OER
Physics Lab Rockets
Students construct and test balloon rockets and a model rocket. In this rocket science lesson, students use an inquiry-based method to master balloon rockets and have a shoot-off with the goal of attaining the highest altitude. Next,...
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Roll It! Creating an Entrance Ramp
High schoolers explore the concept of triangles. In this triangles lesson, students are to propose a plan for a ramp at their school. High schoolers use the Pythagorean Theorem and trigonometry to determine the length,...
Curated OER
Identify Triangles 2
In thins triangles review worksheet, learners examine 4 triangles and their measurements. Students classify them as equilateral, isosceles, or scalene.
Curated OER
Identify Triangles
In thins triangles review worksheet, students examine 3 triangles and their measurements. Students classify them as acute, right, obtuse, equilateral, isosceles, or scalene.
Curated OER
Drawing Triangles
In this drawing triangles activity, 6th graders read the dimensions of four triangles, given the length or the angle, identify the type of triangle and draw it.
Curated OER
Using Centimeters to Measure the Perimeter of Triangles
In this using centimeters to measure the perimeter of triangles instructional activity, 2nd graders measure 6 triangles with a centimeter ruler and write the equation used to find the perimeter.
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Find the 2D shape
In this 2D shapes worksheet, learners find the rectangular prism, triangular prism, pentagon, and triangle. Students have 3 shapes to choose from in each of the 4 problems.
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Identify Triangles
In this triangles worksheet, students identify each triangle as either being equilateral, isosceles, or scalene. Students complete answers for 3 triangles.
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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.
Curated OER
Identifying Triangles
In this triangles practice worksheet, students respond to 4 questions that require them to identify the pictured triangles as acute, right, obtuse, scalene, isosceles, or equilateral triangles.
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Find the unknown angle in the following triangles
In this unknown angle instructional activity, students find the unknown angle in the triangle that gives them 2 angles. Students find 9 unknown angles.
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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
Identifying Triangles
In this triangles practice worksheet, learners respond to 4 questions that require them to identify the pictured triangles as acute, right, or obtuse triangles.
Curated OER
Identifying Shapes: Cubes, Triangles, Cones and Spheres
In this identifying shapes worksheet, students tell which shapes in sets are named, choosing from cube, triangle, cone or sphere. A reference web site is given for additional activities.
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Triangle Worksheet: Cut, Construct and Think 1
In this triangle worksheet, 6th graders draw and cut out a triangle, cut it into three pieces, then arrange the pieces to make new shapes.
Math Salamanders Ltd.
2D Shape Sheet Isosceles Triangles
In this isosceles triangle activity, students cut or count the triangles on this sheet. Students cut or count out 13 isosceles triangles that are all different colors.
Math Salamanders Ltd.
2D Shape Sheet Triangles
In this triangles activity, students can cut out or count the triangles given to them. Students cut or count 13 different colored triangles.
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.
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Shape and Space: Circles
Students create isosceles triangles. In this triangles lesson, students participate in a quick fire exercise with combinations of numbers totaling 180. Students complete a worksheet with several problems.
Curated OER
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.