Writing Fix
Writing Fix: Left Brained Writing Prompt: Simple Formula Poems: Diamonte
Diamantes are poems that form a diamond-shape, and they are often about two opposite ideas. Write to topics of your choosing using a DIAMANTE or if you need help with a topic, click on the topic generator for ideas. Really try to include...
George Mason University
Area Formula Lab
In this set of worksheet activities, students will be guided to discover formulas for area of polygonal shapes and circles.
Math Is Fun
Math Is Fun: Area of Plane Shapes
The resource consists of area formulas and diagrams for a variety of shapes.
Mangahigh
Mangahigh: Shape: Speed, Distance and Time Calculations
Test your knowledge of speed, distance, and time formulas.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Composite Figures
Investigate how a variety of shapes can be used to form composite figures using this interactive Learn Alberta math resource. Students will also work on using relevant operations and formulas to figure out the total area of composite...
AAA Math
Aaa Math: Circumference of a Circle
Calculating the circumference or perimeter of a circle has gotten easier with this formula and practice for finding the circumference.
Georgia State University
Georgia State University: Hyper Physics: Lens Maker's Formula
A discussion of the lens-maker's formula and its use in determining the effect of lens shape and index of refraction upon the magnifying power of a lens. Includes an interactive problem-solving section.
Calculator Soup
Calculator Soup: Geometric Shapes
This reference lists formulas for geometric shape measurements and offers links to online calculators.
The Math League
The Math League: Surface Area
This tutorial explains the concept of surface area, and then goes through multiple shapes offering the specific surface area formula for each one.
Math Planet
Math Planet: Pre Algebra: Measure Areas
Demonstrates how to calculate the area of two-dimensional shapes using formulas. Covers parallelogram, triangle, trapezoid, and circle. Includes a video modeling how to find the area of a circle and a triangle. [0:59]
Texas Education Agency
Texas Gateway: Estimating Measurements/using Models and Formulas: 3 D Figures
Given application problems involving 3-dimensional figures, the student will estimate measurements, including surface area and/or volume, then solve the problems.
Shodor Education Foundation
Shodor Interactivate: Lesson: Area (Elementary)
In this lesson students will practice finding the area rectangular shapes and irregular shapes with right angles and understand why the area formula works for rectangular shapes.
Shodor Education Foundation
Shodor Interactivate: Area (Elementary)
In this lesson students will practice finding the area of rectangular shapes and irregular shapes with right angles and understand why the area formula works for rectangular shapes. CCSS.Math.Content.3.MD.C.5.b A plane figure which can...
Cuemath
Cuemath: Cone
Learn all about the basic properties of a cone. This lesson targets the formula, volume, parts, and shapes of a cone and has interesting solved examples and practice questions.
Purple Math
Purplemath: Geometry Word Problems: Introduction
Introduces how to set up and solve simple geometric-figure word problems. Includes advice regarding formulas to memorize.
Science Buddies
Science Buddies: Play Doh Math
One piece of Play-Doh can make many different shapes. Even though you can change the shape by squishing or stretching the Play-Doh, it is still the same size unless you add or take away some of the dough. Try this experiment to test how...
CK-12 Foundation
Ck 12: Hydrocarbon Rings
[Free Registration/Login may be required to access all resource tools.] In this module, students will explore cyclic hydrocarbons, and explain how ring strain contributes to the shape of cyclic hydrocarbons. They will also name and write...
OER Commons
Oer Commons: Polygons
Seventh graders find the area of regular polygons, recalling what they already know about the area of geometric shapes and generalizing a formula for any regular polygon.
Varsity Tutors
Varsity Tutors: Hotmath: Review: Area
Find a quick, concise explanation of area and the formulas for different shapes. An example is given to help you understand how find the area of a shape. The area formulas are listed for different types of shapes.
ClassFlow
Class Flow: Match Sequences Algebra
[Free Registration/Login Required] In this flipchart, students investigate patterns and sequences used in constructing various shapes using match sticks. Students then develop their introductory algebraic sense by determining the formula...
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.
National Council of Teachers of Mathematics
The Math Forum: The Cylinder Problem: Elementary Lesson
Use this lesson plan to help students learn about cylinders. Students will be creating cylinders, and comparing them and their capacity. This engaging, hands-on lesson will hold student interest and be very beneficial to student learning.
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.
CK-12 Foundation
Ck 12: Lewis Electron Dot Structures
[Free Registration/Login may be required to access all resource tools.] The following online tutorial describes how a covalent bond forms, including the energy change involved in the process.Students will be asked to use the octet rule...