CK-12 Foundation
Ck 12: Geometry: Similar Polygons and Scale Factors
[Free Registration/Login may be required to access all resource tools.] This concept teaches students what similar polygons are and how to use scale factors to solve for missing information in similar polygons.
CK-12 Foundation
Ck 12: Arithmetic: Proportions to Find Scale Ratios
[Free Registration/Login may be required to access all resource tools.] In this lesson students find a scale, ratio, or proportion given actual and scale dimensions. Students examine guided notes, review guided practice, watch...
PBS
Pbs Learning Media: Kid Vid: Scaling Up Rectangles
Watch a student think through a problem about how the area of a rectangle changes when both sides are increased by the same scale factor and use online tools to demonstrate understanding of concepts related to area and scale factors in...
OER Commons
Oer Commons: Scale
Seventh graders will explore scale and use it to find measurements in scale drawings.
CK-12 Foundation
Ck 12: Arithmetic: Proportions to Find Dimensions
[Free Registration/Login may be required to access all resource tools.] In this lesson studnets find actual or scale dimensions using a given scale, ratio, or proportion. Students examine guided notes, review guided practice, watch...
PBS
Pbs: Scale City: Proportions and Music in the Real World
In this video-through footage of the calliope aboard the Belle of Louisville, a church pipe organ, and various instruments at a recording studio-students are introduced to the mathematical concept that the length of a musical pipe or a...
CK-12 Foundation
Ck 12: Geometry: Ratios and Proportions Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide reviews ratios, proportions, and cross-multiplication.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Learning Ratios & Proportions Through Scale Drawings
Website which strengthens the conceptual connection between scale drawings and ratios through an activity lesson.
PBS
Pbs Nova: Scaling the Pyramids
Use this information to build a scale model of the Great Pyramid. Explore the information available about the height, base and angles of this pyramid. Great opportunity to apply the principles of using a scale model.
University of California
World History for Us All: Getting Our Bearings: Maps of Time, Space, and History
Understanding history requires students to be able to see the big picture. This teaching unit introduces students to tools they can use to investigate history. Topics covered include cartography, chronography, and maps of space, time and...
CK-12 Foundation
Ck 12: Measurement: Scale Distances or Dimensions
[Free Registration/Login may be required to access all resource tools.] Find scale dimensions using actual measurements and a ratio or proportion.
PBS
Pbs: Proportional Scaling
Examine some of the complexities and complications inherent in the development of a micro engine. This video focuses on how MIT researchers have to consider proportions comparing volume and surface area when factoring heat loss, taking...
Alabama Learning Exchange
Alex: To Scale or Not to Scale? That Is the Factor.
Students will learn to solve proportions and find missing sides of similar figures using the scale factor. This instructional activity is best taught before the concept of cross multiplication is developed. Not only will the student...
PBS
Pbs: Scale City: Scaling Up Rectangles in the Real World
In this video, students explore Depression-era post office murals and modern outdoor murals to learn how artists use proportional reasoning and measurement to create large-scale paintings. The video ends with the question, "How do...
CK-12 Foundation
Ck 12: Algebra: Scale and Indirect Measurement Applications
[Free Registration/Login may be required to access all resource tools.] Use map scales and proportions to solve for unknown distances.
PBS
Pbs Learning Media: Scale City: Similar Figures and Unknown Heights in Practice
In this interactive, students explore how to use shadows, proportional reasoning, and similar figures to determine the unknown height of an object. The interactive allows students to explore the proportional relationships among the...
CK-12 Foundation
Ck 12: Measurement: Unit Scale to Find Actual Dimensions
[Free Registration/Login may be required to access all resource tools.] Identify unit scale and use unit scale when problem solving.
PBS
Pbs: Scale City: Scaling Up Recipes and Circles in the Real World
In this video, students visit a small-town festival that features the world's largest stainless steel skillet. In addition to a question about scaling recipes, they also are asked how increasing or decreasing the radius of a circle...
CK-12 Foundation
Ck 12: Measurement: Distances or Dimensions Given Scale Measurements
[Free Registration/Login may be required to access all resource tools.] Read and interpret scale drawings and floor plans to find scale dimensions and actual dimensions
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Ratios and Proportional Relationships
A guide to support parents as they work with their students in ratios and proportional relationships.
Other
I Coach Math: Scale Factor
Explains what a scale factor is and scenarios where it is used. Presents an example problem and its solution, and includes a video. [9:36]
Science Buddies
Science Buddies: Applying Hooke's Law: Make Your Own Spring Scale
Hooke's law says that the opposing force of a spring is directly proportional to the amount by which the spring is stretched. How accurately Hooke's law describe the behavior of real springs? Can springs be used to make accurate scales...
Alabama Learning Exchange
Alex: Using Scale Factors: Drawing Your Body to Scale
Teachers will use this lesson to review and apply skills involving scale factors. Teachers will use illuminations website to review scale factor. Then students will be given instructions to draw their bodies to scale.
University of Arizona
Pulse: Industrialization, Chemicals and Human Health
While students gain an understand of basic environmental toxicology, they explore the health impacts of industrialization on society in these lessons. This is a cross curricular unit that addresses standards for eleventh grade in math,...