Curated OER
How Do We Measure Angles
In these angles and geometry worksheets, students learn about different kinds of angles, angle measurement, and other geometry facts. Students complete 15 questions.
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Measuring the Area of Polygons
Fourth graders use pattern blocks to explore areas of polygons. They explain that the answers to the area of the same polygon vary according to the units of measurement used. They visualize how different units of measurement can be used...
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Line 'Em Up!
Young scholars find coordinate points on a grid and create a line graph with those points. This lesson should ideally be used during a unit on various types of graphs. They make and use coordinate systems to specify locations and to...
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Cutouts
Students identify symmetry in shapes. In this geometry lesson, students fold paper to identify lines of symmetry. Students create various symmetrical shapes using folded paper.
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Balancing Act
Second graders identify the attributes of various shapes and estimate the weight of the objects. In this geometry lesson, 2nd graders identify the attributes of concrete objects and use a pan balance to weight them.
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Introducing Powers and Models
Young scholars construct two dimensional models to illustrate squared numbers. For this geometry lesson, students use graph paper and an x/y axis to build squares exponentially. Young scholars identify powers and relationships between...
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What is a Tangram?
Students identify a tangram. In this geometry lesson, students read Grandfather Tang's Story and retell each story using the tangrams on a flannel board. Students use tangrams to complete an included worksheet.
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Math Lesson Study Plan
Second graders find missing addends by solving math word problems. In this missing addend lesson, 2nd graders work in a whole group setting to find the missing addends in word problems before using the strategies to work independently....
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Mathematics Witing: Algebraic Processes and Its Connections to Geometry
Students, using manipulatives, determine how many different ways there are to arrange 3 and 4 objects. They organize and record their arrangements. Students investigate the pattern generated by 3 and 4 objects, they predict how many ways...
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Converting Frenzy
Gain practice converting between metric units of volume and mass. The class goes over the procedures for making the conversions as a whole. The strategy used here includes making charts that show the relationships between the...
Noyce Foundation
Time to Get Clean
It's assessment time! Determine your young mathematicians' understanding of elapsed time with this brief, five-question quiz.
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Pump Up the Volume
Fourth graders calculate volume. In this volume lesson, 4th graders calculate, estimate, and compare units of volume in English and metric systems.
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Geoboard Ideas
Pupils build polygons on their geoboards. In this geometry lesson plan, students build and then draw it on paper and label it. Pupils then switch with a partner to try an make a symmetrical shape.
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Visualizing Multiplication
Upper graders represent multiplication of a two-digit number by a two-digit number as the area of a rectangle with dimensions of the two factors. They find patterns for the number of different base ten blocks in a rectangle representing...
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Folding Circles
Students explore circles. In this introductory geometry lesson, students cut out a circle and follow a series of instructions given by the teacher. Students fold the circle, answer questions, and draw conclusions.
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Comparing Measurements
Students explore measurements by completing worksheets in class. In this geometry lesson plan, students identify the basic measurement units in both the English and metric systems. Students analyze 2 and 3 dimensional objects and...
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Transformations-Shapes on the Move
Students examine transformations. In this math lesson, students view and describe flips, slides, and turns. Students practice making transformations with shapes.
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Polygon Perimeters
Learners define the terms polygon and perimeter to begin the lesson. Using a calculator, they practice determining the perimeter of various symbols in a painting. They discuss how geometry and art are related to one another.
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Perimeter Playground
Students explore geometry by participating in a school measuring activity. In this perimeter lesson, students discuss the techniques and methods used in order to measure a large perimeter or geometric figure. Students utilize grid paper,...
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Melissa's Garden
In this math instructional activity, students identify the location of pictures on a coordinate plane. They write some answers as an ordered pair. They read ordered pairs and identify the picture at a specified location. Six problems are...
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Folding to Make Shapes
Second graders identify different polygons and their attributes. In this geometry lesson, 2nd graders get to know polygons by studying the vocabulary and finding polygons in their classroom. They create these shapes and then find their...
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Geo Jammin' - Day 1, Lesson 1: Gee Quiz!
Second graders are introduced to geometry by a teacher made puppet called Geo George.
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The Circle's Measure
Students explore circumference and diameter. In this math lesson plan, students apply their knowledge of circumference and diameter to solve mathematical riddles. Students apply this knowledge to find circumference and diameter of...
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Building With Triangles
Fourth graders use two different techniques to construct triangles with specific dimensions. They determine how to construct nets for three-dimensional objects focusing on those made with equilateral triangles. They are able to name the...