Curated OER
The World's Simplest Cartesian Diver
Have your class learn about buoyancy using this simple lesson. First, they bring in condiment packets and see what happens when they place it in a glass of water. Then, they use one of the packets to illustrate the concept of a Cartesian...
Curated OER
Measurement Activity
In this geometry worksheet, students use a ruler and a protractor to measure the lengths of the line segments and size of the angles that make up a drawing of a Christmas tree. The one page worksheet has one problem. Answers...
Curated OER
Tessellating Ceiling Tiles
Learners transform polygons. In this tessellating lesson plan, students design a picture containing a translation and a rotation. They create a template of a translation or a rotation. Learners tessellate and decorate a...
Curated OER
Take Home Question – Chapter 4
In this graphing linear equations instructional activity, high schoolers solve 8 short answer and graphing problems. Students graph linear equations, find their points of intersection, find the slope of each line, identify the...
Curated OER
Bill's Badge
Middle schoolers explore the making of circles and concepts related to them in geometry. The project is inquiry based will focus upon students making their own nametags. The construction is ideal for hands on middle schoolers.
Curated OER
Cabri Jr. - Getting Started with Triangles
Learners explore a basic triangle construction. In this beginning geometry lesson, students investigate the steps to necessary to create an equilateral triangle with Cabri Jr.;
Curated OER
Dividing Line Segments into n Congruent Parts
Students identify lines, and line segments. In this geometry lesson plan, students divide line segments into equal congruent parts. They complete a laboratory activity dealing with lines and segments.
Curated OER
Why can't We Use SSA to Prove Triangles Congruent?
Students investigate triangles and congruences. For this geometry lesson, students differentiate between inductive and deductive reasoning. They differentiate between similar and congruent triangles.
Curated OER
Incenter of a Triangle
Tenth graders find the incenter of a triangle. In this geometry lesson plan, 10th graders define the way to create an incenter with an angle bisector. They differentiate between incenter and incircle.
Curated OER
Pedal Triangles
Students identify the properties and theorems of triangles. For this geometry lesson, students construct angle bisectors using a compass and straight edge. They identify triangular similarity and congruency.
Curated OER
Discovering Euler's Theorem
Learners identify different parts of a prism and polyhedra. For this geometry lesson, students identify the number of faces, edges and sides of polygons. They solve problems by recognizing patterns.
Curated OER
Geometry Gymnastics
Students identify shapes and manipulate 2 and 3 dimensional objects. They view objects from different perspectives and review relative positions (near, far, between). They sing a shape song.
Curated OER
Exploring Special Lines
Students compare and order numbers. In this geometry activity, students write equations for inequalities. They differentiate and apply concepts of triangular properties to solve problems.
Curated OER
Investigating a Point on an ANgles Bisector
Students investigate points and angle bisectors. In this geometry lesson, students define angles, bisectors and perpendicular bisectors. They analyze angles and bisectors using Cabri software.
Curated OER
Geometry Slideshow
Sixth graders create slideshows of geometric terms. They use images taken with digital cameras or scanned from magazines.
Curated OER
Geometry of Radio Meteor Reflections
Ninth graders investigate and describe ways that human understanding of Earth and space has depended on technological development. They describe and interpret the science of optical and radio telescopes, space probes and remote sensing...
Curated OER
Classifying and Constructing Corners
Fifth graders, after seeing Honeycomb examples, complete a Classifying Angles worksheet, Clock worksheet, and Defining Angles worksheet.
Curated OER
Geometry: Area Project
Sixth graders identify and use area formulas for finding the area of geometric shapes.
Curated OER
Constructing My Sundae
Eighth graders investigate concepts related to fractions. This includes adding, subtracting, and reducing. There is a creative worksheet that has them creating their own ice cream sundaes using fractions.
Mascil Project
Circular Pave-Stones Backyard
Pack the lesson into your plans. Young mathematicians learn about packing and optimization with the context of circular paving stones. They use coins to model the paving stones, and then apply knowledge of circles and polygons to...
Math Mammoth
Measuring Angles
The first of two pages displays various angles as the measure of degrees of a circular arc. An explanation is written, and learners are asked to model each by holding up two pencils as the rays. The second page provides instruction on...
Curated OER
Modular Houses
Students, working in pairs, are presented with the problem. They are asked to design modular houses using four cubic modules, all the same size, which touch each other on complete faces. They must draw each of their houses on isometric...
Curated OER
Symmetry of the Southwest
Fourth graders examine mirror symmetry. In this symmetry lesson, 4th graders discover that symmetry is not always vertical or horizontal. Students cut and fold shapes along lines of symmetry.
Curated OER
The Overlooked Regular Pentagon
Tenth graders discuss the history of geometry as it relates to pentagons. In this geometry lesson, 10th graders solve problems of a pentagon inscribed inside of a circle using ratio. They review other properties for shapes of polygons...