Mathed Up!
Negative Scale Factor
Class members investigate the effect of a negative scale factor dilation on coordinate shapes as they watch a short video that shows an example of a geometric figure undergoing a dilation with a negative scale factor. Learners then try a...
EngageNY
Scale Drawings
Are you searching for a purpose for geometric constructions? Use an engaging approach to explore dilations. Scholars create dilations using a construction method of their choice. As they build their constructed dilation, they strengthen...
EngageNY
Changing Scales
Pupils determine scale factors from one figure to another and the scale factor in the reverse direction. Scholars compute the percent changes between three figures.
EngageNY
The Scaling Principle for Area
As they investigate scaling figures and calculate the resulting areas, groups determine the area of similar figures. They continue to investigate the results when the vertical and horizontal scales are not equal.
EngageNY
Scale Factors
Is it bigger, or is it smaller—or maybe it's the same size? Individuals learn to describe enlargements and reductions and quantify the result. Lesson five in the series connects the creation of a dilated image to the result. Pupils...
EngageNY
Making Scale Drawings Using the Ratio Method
Is that drawn to scale? Capture the artistry of geometry using the ratio method to create dilations. Mathematicians use a center and ratio to create a scaled drawing. They then use a ruler and protractor to verify measurements.
EngageNY
Making Scale Drawings Using the Parallel Method
How many ways can you create a dilation? Many! Individuals strengthen their understanding of dilations by using various methods to create them. The new technique builds on pupils' understanding of the ratio method. Using the ratio,...
National Research Center for Career and Technical Education
Photoshop Scale
Say cheese! Can your class take a great photo and size it to fit any need? A career and technology-centered lesson plan demonstrates the correct way to resize images in Adobe Photoshop. Scholars view a presentation and work individually...
National Research Center for Career and Technical Education
Information Technology: Photoshop Scale
Scaling is a practical skill as well as a topic to be addressed throughout the Common Core math standards. You are given three different presentations and a detailed teacher's guide to use while teaching proportion, as well as practice...
Curated OER
Lesson: New Museum Design Activity
After viewing images of vernacular and alternative architecture, budding designers collect materials to construct their own spacial design. They use gathered materials to construct a 3D model of the class space in a new way, yet...
Curated OER
Scale and Image Reproduction
Pupils practice using mathematical issues of scale. They compare and contrast digital images verses the object in real life. They share their observations with the class.
Curated OER
Amelia the Pigeon: As a Pigeon Flies
Students follow Amelia's adventure on a satellite image. They use measuring and math skills to determine the distance she traveled.
Curated OER
Pocket Solar System
Motivate your class with this lesson. Learners explore the solar system and practice working with fractions using this resource. They construct scale models of our solar system, and use fractions to correctly configure the solar system...
Association of American Geographers
Project GeoSTART
Investigate the fascinating, yet terrifying phenomenon of hurricanes from the safety of your classroom using this earth science unit. Focusing on developing young scientists' spacial thinking skills, these lessons engage learners in...
Curated OER
Galaxies to Scale
In this scales and galaxies worksheet, students solve 7 problems including finding the size of galaxies in comparison to other galaxies and drawing scale models of the given galaxies to show their relative sizes and shapes.
Curated OER
Annotating Change in Satellite Images
Students construct a movie using Landsat images to observe changes over time on Earth. In this satellite images lesson, students observe changes in land use over time and document one type of change they observe. They produce an...
Music Fun
Overhead Transparencies
Classroom and studio music instructors will find this packet of 10 transparencies of major value. Images of treble and bass clefs, notes and rests, note values, time signatures, and music language are included. Nothing minor about this...
Curated OER
Evolution and the Fossil Record
Engage young biologists with four laboratory activities that explore the fossil record. Learners examine fossil images, a fossil kit, the rock record, and geologic time scale. They even experiment with the oxygen production of an Elodea...
Laboratory for Atmospheric and Space Physics
The Planets and Scale
Scholars gain an insight into the relative size of planets and distance between inner and outer planets with the help of informational text, a data table, and a series of four questions.
University of Wisconsin
What’s a Square Foot Anyway? Laying Out the Design Plan
Clever! Participants don square-foot cardboard shoes to mark out the rain garden plot that they have spent the last few weeks designing. In this way, they are practicing scale modeling as well! Note that this lesson is part of a unit,...
PBS
The Planets of the Solar System
Launch a lesson that's sure to capture middle schoolers' interest! Exploration enthusiasts examine the planets of our solar system using an activity from PBS's Space series. The resource includes images and information for each planet,...
Curated OER
Geometry: Area, Scale Factor, Circumference
In this geometry worksheet, students solve 10 problems regarding area, scale factors, and circumference. Students, in 3 of the problems, are given the circumference and asked to work backwards to find missing information.
CK-12 Foundation
Simplification of Radical Expressions: Richter Scale Exponents
Shake up your lessons with with a radical resource. Scholars use a slider to view the Richter scale magnitude and amplitude of historical earthquakes. They use powers of 10 to compare the amplitudes of different earthquakes.
NOAA
What Little Herc Saw
See the underwater world through a different pair of eyes! Middle school marine biologists identify deep-sea organisms by examining images taken by an ROV from the Okeanos Explorer. After determining what creatures lie beneath the...