OER Commons - Search Results
https://www.oercommons.org/browse?f.keyword=triangles
daily12000-01-01T12:00+00:00Ladybug Adventures
https://www.oercommons.org/courses/ladybug-adventures
The activities in this four-lesson unit enable students to use their knowledge of number, measurement, and geometry to solve interesting problems. Planning and visualizing, estimating and measuring, and testing and revising are components of the ladybug activities. Students design "virtual paths" that enable a ladybug to either hide under a leaf or go through a maze. They develop navigational skills by testing their path and revising it. Two interactive Java applets (Ladybug Mazes and Hiding Ladybug, cataloged separately) support student solutions.Carol MidgettMathematicsGeometry2016-10-25T14:11:44.997789Course Related MaterialsWhat Does it Take to Construct a Triangle?
https://www.oercommons.org/courses/what-does-it-take-to-construct-a-triangle
In this geometry lesson students classify triangles and explore side lengths of triangles to discover the Triangle Inequality Theorem. The resource includes an exploratory activity and student sheet (pdf), class discussion prompts, a small group spinner activity, extension suggestions, and links to two related resources (cataloged separately).MathematicsGeometry2016-10-25T14:11:37.227656Course Related MaterialsPatch Tool
https://www.oercommons.org/courses/patch-tool-2
This interactive applet lets students create quilting type patterns and explore tessellation possibilities. The applet gives learners a choice of six polygons that can be turned or flipped and fitted together. Suggestions for exploration and five challenge patterns are provided. The tool supports a number of lessons and units including What's So Special About Triangles and Virtual Pattern Blocks (cataloged separately).MathematicsGeometry2016-10-25T14:11:30.174948Course Related MaterialsWhat's So Special About Triangles, Anyway?
https://www.oercommons.org/courses/what-s-so-special-about-triangles-anyway
In these two geometry activities students explore the properties of triangles, discover what shapes triangles can form, and investigate what shapes can form triangles. Each activity includes a student recording sheet, extension ideas, and questions for students. Cataloged separateley within this site are the Patch Tool and the related How Many Triangles Can You Construct? activity.MathematicsGeometry2016-10-25T14:11:19.515570Course Related MaterialsShape Tool
https://www.oercommons.org/courses/shape-tool-2
This interactive tool allows a user to create many geometric shapes. Squares, triangles, rhombi, trapezoids and hexagons can be created, colored, enlarged, shrunk, rotated, reflected, sliced, and glued together.MathematicsGeometry2016-10-25T14:10:55.433167Course Related MaterialsBuilding With Triangles
https://www.oercommons.org/courses/building-with-triangles
This 3 lesson instructional unit helps students investigate many different aspects of triangles including basic properties of triangles, building other shapes from triangles, the dependence of the third side length on the other two (Triangle Inequality Theorem), and the Sierpinski Triangle fractal. The lesson includes student activity sheets and links to interactive applets.Marea W. ChannelMathematicsGeometry2016-10-25T13:42:35.323967Course Related MaterialsFiguring Football
https://www.oercommons.org/courses/figuring-football
In this primary grades Illuminations lesson, students identify figures on a football field. They look for both congruent and similar figures, and they consider figures that are the same but that occur in a different orientation because of translation, rotation, or reflection. The lesson includes a student worksheet and discussion questions.MathematicsGeometry2016-10-25T13:42:33.769181Course Related MaterialsJunior Architects
https://www.oercommons.org/courses/junior-architects
In this 4-lesson unit, students identify, compare, and analyze attributes of two- and three-dimensional shapes, and develop geometric vocabulary. Students use basic linear measurement, understand and create scale representations, and explore perimeter and area measurement as they design their clubhouses. Activity sheets (pdf), lesson extensions and other commentary are provided.Jennifer SuhMathematicsGeometry2016-10-25T13:42:25.689430Course Related MaterialsMathematics and Children's Literature
https://www.oercommons.org/courses/mathematics-and-children-s-literature
In this three-lesson unit, students participate in activities in which they focus on connections between mathematics and childrenâ€™s literature. Three pieces of literature are used to teach geometry and measurement topics in the mathematics curriculum, i.e. using and describing geometric figures, estimating the volume of an irregular solid, and exploring the need for a standard unit of length. Activity worksheets and ideas for extension are included.Martha H. HopkinsMathematicsGeometry2016-10-25T13:42:20.592318Course Related MaterialsPaper Quilts
https://www.oercommons.org/courses/paper-quilts
In this unit, students investigate fractional parts of the whole and use translations, reflections, rotations, and line symmetry to make four-part quilt squares. Students have a practical context for using the mathematical terms associated with divisions of the square, transformations, and symmetries. Suggestions for implementation and extensions are included.MathematicsGeometry2016-10-25T13:42:17.068982Course Related MaterialsShape Sorter
https://www.oercommons.org/courses/shape-sorter
In this web-based application from Illuminations students must sort shapes based on the categories of the Venn diagram. Users can choose the categories from a drop down menu. The application includes instructions and exploration steps.MathematicsGeometry2016-10-25T13:42:14.151317Course Related MaterialsConcentration
https://www.oercommons.org/courses/concentration-3
This familiar game can be played by one or two players taking turns. Players choose to match equivalent representations of numbers, shapes, fractions, or multiplication facts. The game can be played in clear pane mode, or for added challenge, with the windows closed.MathematicsGeometry2016-10-25T13:42:10.776272Course Related MaterialsHow Many Triangles Can You Construct?
https://www.oercommons.org/courses/how-many-triangles-can-you-construct
This activity has students explore the patterns that emerge when connecting midpoints of triangles. The activity includes a student worksheet, discussion questions, and an interactive fractal tool.MathematicsAlgebraGeometry2016-10-25T13:41:50.384136Course Related MaterialsDynamic Paper
https://www.oercommons.org/courses/dynamic-paper
With this versatile resource a teacher can create a variety of materials to use with students: nets for three-dimensional shapes, graph paper, number lines, number grids, tessellations, two-dimensional shapes, and spinners. Each mode has flexible design options. The results can be downloaded as a printable PDF activity sheet or as a web-friendly JPEG image.MathematicsGeometry2016-10-25T13:41:41.386271Course Related Materials