## ◂Math Worksheets and Study Guides Seventh Grade. Ratios, proportions and percents

### The resources above correspond to the standards listed below:

#### Ohio Standards

OH.DAP. Data Analysis and Probability: Students pose questions and collect, organize, represent, interpret and analyze data to answer those questions. Students develop and evaluate inferences, predictions and arguments that are based on data.
DAP.I. Describe the probability of an event using ratios, including fractional notation.
OH.GSS. Geometry and Spatial Sense: Students identify, classify, compare and analyze characteristics, properties and relationships of one-, two- and three-dimensional geometric figures and objects. Students use spatial reasoning, properties of geometric objects, and transformations to analyze mathematical situations and solve problems.
GSS.1. Grade Level Indicator: Characteristics and Properties: Use proportional reasoning to describe and express relationships between parts and attributes of similar and congruent figures.
GSS.E. Use proportions to express relationships among corresponding parts of similar figures.
GSS.F. Describe and use the concepts of congruence, similarity and symmetry to solve problems.
GSS.J. Apply properties of equality and proportionality to solve problems involving congruent or similar figures; e.g., create a scale drawing.
OH.M. Measurement: Students estimate and measure to a required degree of accuracy and precision by selecting and using appropriate units, tools and technologies.
M.4. Grade Level Indicator: Use Measurement Techniques and Tools: Solve problems involving proportional relationships and scale factors; e.g., scale models that require unit conversions within the same measurement system.
OH.NNSO. Number, Number Sense and Operations: Students demonstrate number sense, including an understanding of number systems and operations and how they relate to one another. Students compute fluently and make reasonable estimates using paper and pencil, technology-supported and mental methods.
NNSO.D. Use models and pictures to relate concepts of ratio, proportion and percent.