The following concepts and skills are required of all students completing eighth grade. They should be taught in depth using a variety of methods and applications so that all students have accessibility to and an understanding of these concepts.
NOTE: Asterisks (*) have been used to identify standards and objectives that must be assessed by the local school district. All other skills may be assessed by the Oklahoma School Testing Program (OSTP).
| Unit 1 | |
|---|---|
| 4.3a | Select and apply appropriate formulas for given situations: i. an equation (e.g., d = rt, i = prt) ii. measurement problems (e.g., p = 2l + 2w, v = lwh) |
| 4.3b | Find the area of a “region of a region” for simple composite figures (e.g., area of a rectangular picture frame). |
| 2.1a | Compare and order rational numbers (positive and negative integers, fractions, decimals) in real-life situations. |
| 1.2b | Graph the solution to linear inequalities with one variable on a number line. |
| 2.2a | Use the rules of exponents, including integer exponents, to solve problems (e.g., 72 • 73 = 75). |
| 2.2b | Represent and interpret large numbers and numbers less than one in exponential and scientific notation. |
| 2.2c | Use estimation strategies (e.g., rounding) to describe the magnitude of large numbers and numbers less than one. |
| Unit 2 | |
| 2.1b | Use the basic operations on rational numbers to solve problems in real-life situations (e.g., describe the effect of multiplying whole numbers by a fraction or a decimal less than 1). |
| 5.1 | Select and apply appropriate formats (e.g., line plots, bar graphs, stem-and-leaf plots, scatter plots, histograms, circle graphs) to display collected data. |
| 5.2a | Find the measures of central tendency (mean, median and mode) of a set of data and understand why a specific measure provides the most useful information in a given context. |
| 5.2b | Compute the mean, median, and mode for data sets and understand how additional data in a set may affect the measures of central tendency. |
| 5.3* | Determine how samples are chosen (random, limited, biased) to draw and support conclusions about generalizing a sample to a population (e.g., is the average height of a men’s college basketball team a good representative sample for height predictions?). |
| Unit 3 | |
|---|---|
| 1.1a | Model, write, and solve 2-step linear equations using a variety of methods. |
| 1.2a | Model, write, and solve 1-step and 2-step linear inequalities with one variable. |
| Unit 4 | |
| 2.1c | Apply ratios and proportions to solve problems. |
| 4.2 | Apply knowledge of ratio and proportion to solve relationships between similar geometric figures (e.g., build a model of a 3-dimensional object to scale). |
| 3.2 | Develop the Pythagorean Theorem and apply the formula to find the length of missing sides of a right triangle and the length of other line segments. |
| Unit 5 | |
|---|---|
| 4.1 | Estimate and find the surface area and volume in real world settings (e.g., unwrap a box to explore surface area; use rice, 1-inch cubes, centimeter cubes, cups ... to estimate the volume of boxes, irregular shaped objects, containers). |
| 3.1 | Construct models, sketch (from different perspectives), and classify solid figures such as rectangular solids, prisms, cones, cylinders, pyramids, and combined forms (e.g., draw a figure that could result from making 1, 2, or 3 cuts in a given solid). |
| Unit 6 | |
| 1.1c | Predict the effect on the graph of a linear equation when the slope changes (e.g., make predictions from graphs, identify the slope in the equation y = mx + b and relate to a graph). |
| 1.1b | Graph and interpret the solution to linear equations on a number line with one variable and on a coordinate plane with two variables. |