Science Buddies
Science Buddies: How Does Ratio of Sand to Cement Affect Strength of Concrete?
Concrete is one of those things that most of us don't think about much, yet we use it every day. We walk on concrete sidewalks, drive on concrete roads, and live and work in buildings with foundations made of concrete. It is a durable...
PBS
Pbs Mathline: How Many Noses Are in Your Arm? Lesson Plan [Pdf]
Students will determine how many noses are in your arm by exploring measurement and ratio. Printable lesson.
PBS
Pbs Mathline: Alphabits Lesson Plan [Pdf]
Students are given a baggy of Alphabits cereal to explore ratios and percents. Printable lesson.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Proportion Playground
An interactive simulation that teaches about ratios, proportional reasoning, and unit rate by making predictions and testing proportions while designing a necklace, throwing balloons filled with paint, playing billiards, or shopping for...
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Unit Rates
An interactive simulation that teaches about ratios, proportional reasoning, and using double number lines to look for patterns through interactions while shopping for fruits, vegetables, and candy and by comparing cars with different...
Other
Simple Science: Ramps and Ratios
The interactive tutorial explores ramps and ratios. Learners view and analyze images of ramps and steps to see if they conform to the requirements of the Americans with Disabilities Act. The activity has students measure vertical and...
McGraw Hill
Glencoe: Self Check Quizzes 2: Ratios
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of ratios. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It"...
McGraw Hill
Glencoe: Self Check Chapter Test Ratios and Proportions
The mathematics resource consists of an assessment with hints and solutions. Students answer questions that review ratios and proportions.
McGraw Hill
Glencoe: Self Check Quizzes Ratios 2
The randomly generated questions examine ratios. Students answer the multiple choice questions which include hints and solutions.
McGraw Hill
Glencoe: Self Check Quizzes Ratios
The randomly generated questions explore ratio applications. Students answer the multiple choice questions which include hints and solutions.
McGraw Hill
Glencoe: Self Check Quizzes Ratios and Rates
Learners assess their mathematics skills by answering these randomly generated multiple choice questions. Topics included are simplifying ratios, solving ratios, and rates.
McGraw Hill
Glencoe: Self Check Chapter Test Using Proportional Reasoning
The mathematics resource consists of an assessment with hints and solutions. Students answer questions that review proportional reasoning.
McGraw Hill
Glencoe: Self Check Quizzes Ratios 3
Learners assess their mathematics skills by answering these randomly generated multiple choice questions. Topics included are ratios in simplest form, ratio comparisons, and equivalent ratios.
McGraw Hill
Glencoe: Self Check Quizzes 1 Ratios
Use Glencoe's randomly generated self-checking quiz to test your knowledge of ratios. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It" button and the...
McGraw Hill
Glencoe: Self Check Quizzes Comparing With Ratios and Rates
The randomly generated questions examine ratio and rate comparisons. Students answer the multiple choice questions which include hints and solutions.
Google
Google for Education: Ratios and Proportions
Students use ratio and rate reasoning to solve real-world and math problems by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
Texas Education Agency
Texas Gateway: Solving Problems With Similar Figures
Given problem situations involving similar figures, the student will use ratios to solve the problems.
Student Achievement Partners
Illustrative Mathematics: The Escalator, Assessment Variation [Pdf]
Use this assessment to track students understanding of ratios and rates.
Student Achievement Partners
Illustrative Mathematics: Art Class [Pdf]
Students demonstrate understanding of proportional relationships when completing an assessment.
Other
Center School District: Everyday Math Resources
Everyday Math Resources for 5th grade is an excellent resource for both students and teachers. Twelve math strands are linked to activities and interactive games that support the learning outcomes. Click on links at the top to access...
Rice University
Rice University: Cynthia Lanius: Fun Mathematics Lessons
This resource has mathematics lessons for different levels, from counting to slope. In English and Spanish.
Math Open Reference
Math Open Reference: Ratio
Learn about ratios with this handy reference site. Detailed explanations and examples are used to explain ratios. Also highlights common mistakes that can be made when learning about ratios.
CK-12 Foundation
Ck 12: Interactive Middle School Math 7 for Ccss
A complete CCSS Grade 7 Mathematics course that includes interactives in every lesson, plus videos, hands-on activities, and questions with immediate feedback. Every lesson also has specifically chosen 'Related Modalities' that teach the...
CK-12 Foundation
Ck 12: Interactive Middle School Math 6
This all-interactive MSM 6 course is a complete and rigorous Grade 6 Mathematics course where the text is the support material, NOT the main content. The course includes instructional interactives, inline immediate-feedback (formative)...