Oswego City School District
Regents Exam Prep Center: Geometric Constructions
Learn all about the basic geometric constructions in this test prep lesson. You will explore line segments and points, and understand key terms like the terms parallel and perpendicular. Construction activities and interactive online...
University of Texas at Austin
University of Texas: Elementary Math Club: A Math Mural
Students learn how to construct shapes and understand the properties of these shapes. The lesson plan includes an overview and a lesson toolkit.
National Council of Teachers of Mathematics
The Math Forum: Geoboard Activities
Math Forum provides a set of links to sites that are related to geoboard activities. There are several great links to lessons using geoboards. The links provide insight into how to use them, including how to perform various measurements...
Math Drills
Math Drills: Geometry Worksheets
Download these worksheets to sharpen your geometry skills. Sheets focus on angles, coordinate geometry, triangles, quadrilaterals, transformations, and three-dimensional geometry, and more.
E-learning for Kids
E Learning for Kids: Math: Pizza (Italian) Restaurant: Angles I
In this interactive website, students practice various math skills such as identifying different types of angles, use the degree symbol, estimate and measure angles, and construct angles.
University of Cambridge
University of Cambridge: Maths and Sports: Speed/time Problems at the Olympics
8 speed/time problems from Olympic athletics, rowing, and cycling aimed at GCSE students (grades 8, 9, and 10). This activity encourages investigation and research for some parts of the questions and gives students opportunities to...
Texas Instruments
Texas Instruments: Traditional Copy an Angle: Compass Construction Using Cabri
Use Cabri Jr to copy an angle. The activity is followed by a student-to-student interview/reflection sheet intended to require students to think, talk, and write about why the construction worked. The reflection sheet could be adapted...
Math Open Reference
Math Open Reference: Congruent Triangles
A complete reference guide to congruent triangles. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
National Council of Teachers of Mathematics
The Math Forum: The Cylinder Problem: Middle School Lesson
This lesson offers an interesting, hands-on experience for middle school students studying cylinders. Students will create cylinders, and measure and compare their volumes.
Math Open Reference
Math Open Reference: Biography of Euclid
Biography of Euclid, a Greek Mathematician, also known as the 'Father of Geometry'.
University of Illinois
University of Illinois Urbana Champaign: Chickscope Egg Math: Equations for an Ellipse
Investigation and discussion of the way "Pin and string construction," works in producing an ellipse. Works through the corresponding equations in a well-ordered way.
PBS
Pbs Learning Media: Constructing Triangles
This interactive exercise focuses on the appearance and manipulation of triangles.
National Council of Teachers of Mathematics
The Math Forum: Paper Folding Activity
This is a lesson plan of paper folding as a method of proof. A Java applet version of the activity can be accessed, giving the actual lengths and angle sizes.
National Council of Teachers of Mathematics
The Math Forum: Polyhedra in the Classroom
Lesson plans for many student activities which introduce the concept of polyhedra into the classroom. Some activities can be accomplished by hand with paper, pencils, and scissors, but the unit works best if the students can regularly...
Wolfram Research
Wolfram Math World: Math World: Hexagon
Gives a detailed overview of hexagons, particularly of regular hexagons. Be sure to use the links for unfamiliar notation or variable representation. This site gives formulas for inner radius, circumradius, parameter, and area of a...
Missouri State University
Missouri State University: Introductory Statistics: Linear Regression Models
Four examples which use the linear regression model in real-world applications. The site continues with discussion on how to correctly construct the regression model, how its results can be analyzed, and what can come from it.
Khan Academy
Khan Academy: Equations and Inequalities Word Problems
Construct an equation or an inequality that models a given context. Modeling expressions can be quadratic, rational, or exponential. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video,...
The Math League
The Math League: Using Data and Statistics: Pie Charts
This introductory tutorial about statistical graphing with four examples of how pie charts (circle graphs) are constructed and read.
Illustrative Mathematics
Illustrative Mathematics: G Srt Folding a Square Into Thirds
The goal of this task is to apply knowledge about similar triangles in order to understand an origami construction: trisection of the side of a square. Aligns with G-SRT.B.5.
Texas Instruments
Texas Instruments: Going in Circles Inscribed Angles
This lesson has students discover properties of inscribed angles in a circle. Students use the Geometer's Sketchpad application for the TI-89 to construct a circle and an inscribed angle.
Illustrative Mathematics
Illustrative Mathematics: G Co Building a Tile Pattern by Reflecting Hexagons
This task applies reflections to a regular hexagon to construct a pattern of six hexagons enclosing a seventh. The focus of the task is on using the properties of reflections to deduce this seven-hexagon pattern. Aligns with G-CO.B.6.
Illustrative Mathematics
Illustrative Mathematics: G C Tangent to a Circle From a Point
This task builds on a previous one called ''Right triangles inscribed in circles I.'' Here students are asked to construct a tangent line to a circle from a point outside of the circle. Aligns with G-C.A.4.
Better Lesson
Better Lesson: Using Area as an Architect (Stations Day 1)
In this multi-day activity, 3rd graders make 3 different models of an orphanage floor plan using Google Drawing, Virtual Graph paper, and a construction of rectilinear shapes, to calculate the area of each room using units square.
University of Illinois
University of Illinois Urbana Champaign: Chickscope Egg Math: The Shape of an Egg
Drawing a perfect ellipse with pins and string is demonstrated with a java simulation.