Curated OER
Constructions and Angles
In this triangle constructing and classifying worksheet, students read through a tutorial on triangles and angles. Then, students complete 17 exercises in which they answer questions about angles and triangles. By clicking on the "Check"...
Curated OER
Quadrilaterals and Angle Sums: Reteach
In this quadrilateral and angle sum worksheet, students review the five types of quadrilaterals. Students then find each missing angle measure and classify the figures as quadrilateral, parallelogram, rectangle, rhombus, square, or...
Curated OER
Triangle Designs
In this triangles learning exercise, students draw different triangles and write how many sides and angles each one has. Students draw 4 kinds of triangles and have 2 that are impossible to draw.
Curated OER
Naming Angles
In this geometry worksheet, students solve 6 problems in which an angle is analyzed. From 5 choices, students circle the correct math symbol that names the angle. There are no examples or explanations for the symbols, which would be...
National Security Agency
Classifying Triangles
Building on young mathematicians' prior knowledge of three-sided shapes, this activity series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's book The Greedy...
Curated OER
Classify and Measure Angles
In this angles worksheet, students classify and measure a set of 9 angles, using a protractor. A reference web site is given for additional activities.
Math Mammoth
Triangles 1
In this triangles worksheet, learners measure and calculate the measurements of eight triangles, their sums and classify the triangles as acute, obtuse or right.
Curated OER
Quadrilaterals
In this solving quadrilateral word problems learning exercise, students draw figures to identify quadrilaterals, use angles to find the ones missing, and explain classification. Students solve six problems.
Virginia Department of Education
Exploring Quadrilaterals
Sort this resource into the Use pile. Scholars investigate attributes of quadrilaterals and then use the results to sort and classify the shapes labeling each figure with their properties to justify the classifications.
Noyce Foundation
Lawn Mowing
This is how long we mow the lawn together. The assessment requires the class to work with combining ratios and proportional reasoning. Pupils determine the unit rate of mowers and calculate the time required to mow a lawn if they work...
Curated OER
Quadrilaterals and Other Polygons: Practice
In this polygons instructional activity, students classify each polygon in as many was possible. Students then write polygon or not a polygon to classify each figure. Students find the measure of the missing angles and complete two test...
Curated OER
Quadrilaterals and Other Polygons: Homework
In this polygons worksheet, students classify each polygon in as many ways as possible. Students then write polygon or not a polygon to classify each figure and find the measure of the missing angles. Students finish with one word problem.
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...
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