National Security Agency
Classifying Triangles
Building on young mathematicians' prior knowledge of three-sided shapes, this lesson series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's book The Greedy...
Curated OER
Side Lengths of Similar Shapes
In this geometry skills worksheet, learners examine 4 pairs of similar shapes and use their problem solving skills and the information provided to calculate the length of segments.
EngageNY
Problem Solving and the Coordinate Plane
Class members investigate rectangles on the coordinate plane. They determine the length of line segments in the coordinate plane with the same x-coordinate or same y-coordinate and then solve geometric problems involving perimeter...
Inside Mathematics
Rugs
The class braids irrational numbers, Pythagoras, and perimeter together. The mini-assessment requires scholars to use irrational numbers and the Pythagorean Theorem to find perimeters of rugs. The rugs are rectangular, triangular,...
Curated OER
Identify Different Types of Triangles
In this geometry learning exercise, students identify different kinds of triangles. Students are given four triangles with their measurements and are to determine which triangle it is by choosing from six different kinds.
Curated OER
Geometry Skills: Solid and Plane Figures
In this geometry skills activity, students respond to 4 questions that require them to examine geometric figures and change them to solid figures and plane figures.
Curated OER
Calculate the Perimeter
In this geometry skills activity, students solve 4 problems that require them to calculate the perimeter of 4 geometric shapes.
Curated OER
Earth Science Regents: The Ellipse
Starting with the instructions to draw an ellipse, and with great pictures, this sheet should help your pupils learn the shapes and measurements involved. Using push pins and string, your class can discover the axis and focus points...
Western Education
Math Poems
The logic, rhythm, and beauty of math sometimes get lost amidst numbers and variables. Amplify math's lyricism with a poetry project that uses metaphors and similes to compare mathematical concepts to other images.
Curated OER
2D and 3D figures
In this 2D and 3D figure worksheet, students name different shapes and decide if they are polygons or not. Students complete 8 problems.
Curated OER
Identifying Shapes: Top, Middle, Bottom
In this identifying shapes: top, bottom, middle learning exercise, students circle the correct word to indicate the position of the colored shape, either top, bottom or middle.
Curated OER
Compare Area and Perimeter of 2D Shapes
For this area and perimeter worksheet, students compare area and perimeter, determining which shapes has the greater perimeter or area. A reference web site is given for additional activities.
Curated OER
Reflection: Student Worksheet
In this math worksheet, students will work independently to trace a stencil on an x-axis. Then students will follow a procedure to trace the image on the horizontal line of reflection. Students will observe that reflections and rotations...
Curated OER
Geometry: Identifying Lines and Rays
For this geometry: identifying lines and rays worksheet, student answer six multiple choice questions identifying lines, line segments and rays.
Curated OER
Perfect Patterns- Completing Patterns Worksheet
In this completing patterns activity, students complete patterns with geometric shapes and the numbers 1-10. They color the geometric shapes with at repeating patterns.
Curated OER
Worksheet 26 - Fall 1995
For this math worksheet, students find the area of all the different types of geometric shapes from the memory. They write all the formulas and explain the meanings of the variables.
Curated OER
Using a Flow Chart for Classification
In this flow chart worksheet, students learn to use flow charts for classification of numbers, geometric shapes and animals. Students follow the directions and fill out flow charts to work out 20 answers. This is an online activity that...
Curated OER
Working in 3-D Sudoku
In this geometric shapes activity, 7th graders solve and complete 8 different problems that include working in a 3-D sudoku puzzle. First, they determine the area of a circle of a sphere to the nearest tenth. Then, students determine the...
Curated OER
Slides, Flips, and Turns
In this geometry worksheet, 2nd graders review how to determine which piece would complete the geometric shape that is pictured. They circle whether it was a flip or a slide to move the piece into position. They draw or write to explain...
Curated OER
Classify Quadrilaterals
Here is a quadrilateral worksheet in which learners choose words that describe shapes, words to complete sentences that describe shapes. A reference web site is given for additional activities.
Curated OER
Word Search Y4 - Shape
In this geometry worksheet, 4th graders find 13 words in a word search puzzle. They find words such as convex, prism, cylindrical, and cone which are placed diagonally, vertically, or horizontally in the puzzle.
Curated OER
Which Image Matches the Word?
In this math worksheet, students read the name of a geometric figure and analyze the drawings next to it. Students color the image that matches the word.
Willow Tree
Three-Dimensional Figures
Time to move into the third dimension! Learn the names of the geometric solids and count faces, edges, and vertices. Then learn to recognize nets that create a given solid.
Curated OER
The Ellipse
This is a practical sheet with the instructions to draw a set of ellipses. After following the diagrams, there are ten questions to complete, with calculations expected for alternate orbits and comparisons related to actual planets in...
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