State of Ohio Mathematics Standards

Measurement

Grade: K
Measurement Standard
Measurement Units

Standard Number: 1  
Identify units of time (day, week, month, year) and compare calendar elements; e.g., weeks are longer than days

Use Measurement Technique & Tools
Standard Number: 2  
Compare and order objects of different lengths, areas, weights and capacities; and use relative terms, such as longer, shorter, bigger, smaller, heavier, lighter, more and less

Standard Number: 3  
Measure length and volume (capacity) using uniform objects in the environment
a   how many paper clips long is a pencil
b   how many small containers it takes to fill one big container using sand, rice, beans
Standard Number: 4  
Order events based on time
a   activities that take a long or short time
b   review what we do first, next, last
c   recall what we did or plan to do yesterday, today, tomorrow

Grade: Gr. 1
Measurement Standard
Measurement Units

Standard Number: 1  
Recognize and explain the need for fixed units and tools for measuring length and weight; e.g., rulers and balance scales

Standard Number: 2  
Tell time to the hour and half hour on digital and analog (dial) timepieces

Use Measurement Technique & Tools

Standard Number: 3  
Order a sequence of events with respect to time; e.g., summer, fall, winter and spring; morning, afternoon and night

Standard Number: 4  
Estimate and measure weight using non-standard units; e.g., blocks of uniform size

Standard Number: 5  
Estimate and measure lengths using non-standard and standard units; i.e., centimeters, inches and feet

Grade: Gr. 2
Measurement Standard
Measurement Units

Standard Number: 1  
Identify and select appropriate units of measure for
a   length – centimeters, meters, inches, feet, or yards
b   volume (capacity) – liters, cups, pints, or quarts
c   weight – grams, ounces, or pounds
d   time – hours, half-hours, quarter-hours, or minutes and time designations a.m. or p.m.
   
Standard Number: 2  
Establish personal or common referents for units of measure to make estimates and comparisons; e.g., the width of a finger is a centimeter, a large bottle of soda pop is 2 liters, a small paper clip weighs about one gram

Standard Number: 3  
Describe and compare the relationships among units of measure, such as centimeters and meters; inches, feet and yards; cups, pints and quarts; ounces and pounds; and hours, half-hours, and quarter-hours; e.g., how many inches in a foot

Standard Number: 4  
Tell time to the nearest minute interval on digital and to the nearest 5 minute interval on analog (dial) timepieces

Use Measurement Technique & Tools
Standard Number: 5  
Estimate and measure the length and weight of common objects, using metric and U.S. customary units, accurate to the nearest unit

Standard Number: 6  
Select and use appropriate measurement tools; e.g., a ruler to draw a segment 3 inches long, a measuring cup to place 2 cups of rice in a bowl, a scale to weigh 50 grams of candy

Standard Number: 7  
Make and test predictions about measurements, using different units to measure the same length or volume

Grade: Gr. 3
Measurement Standard
Measurement Units

Standard Number: 1  
Identify and select appropriate units for measuring
a   length – miles, kilometers and other units of measure as appropriate
b   volume (capacity) – gallons
c   weight – ounces, pounds, grams, or kilograms
d   temperature – degrees (Fahrenheit or Celsius)
   
Standard Number: 2  
Establish personal or common referents to include additional units; e.g., a gallon container of milk; a postage stamp is about a square inch

Standard Number: 3 
 
Tell time to the nearest minute and find elapsed time using a calendar or a clock

Standard Number: 4  
Read thermometers in both Fahrenheit and Celsius scales

Use Measurement Technique & Tools
Standard Number: 5  
Estimate and measure length, weight and volume (capacity), using metric and U.S. customary units, accurate to the nearest or unit as appropriate

Standard Number: 6  
Use appropriate measurement tools and techniques to construct a figure or approximate an amount of specified length, weight or volume (capacity); e.g., construct a rectangle with length 2 inches and width 3 inches, fill a measuring cup to the cup mark

Standard Number: 7  
Make estimates for perimeter, area and volume using links, tiles, cubes and other models

Grade: Gr. 4
Measurement Standard
Measurement Units

Standard Number: 1  
Relate the number of units to the size of the units used to measure an object; e.g., compare the number of cups to fill a pitcher to the number of quarts to fill the same pitcher

Standard Number: 2  
Demonstrate and describe perimeter as surrounding and area as covering a two-dimensional shape, and volume as filling a three-dimensional object

Standard Number: 3  
Identify and select appropriate units to measure
a   perimeter – string or links (inches or centimeters).
b   area – tiles (square inches or square centimeters)
c   Volume – cubes (cubic inches or cubic centimeters).
   
Use Measurement Technique & Tools
Standard Number: 4  
Develop and use strategies to find perimeter using string or links, area using tiles or a grid, and volume using cubes; e.g., count squares to find area of regular or irregular shapes on a grid, layer cubes in a box to find its volume

Standard Number: 5
  
Make simple unit conversions within a measurement system; e.g., inches to feet, kilograms to grams, quarts to gallons

Standard Number: 6  
Write, solve and verify solutions to multi-step problems involving measurement

Grade: Gr. 5
Measurement Standard
Measurement Units

Standard Number: 1  
Identify and select appropriate units to measure angles; i.e., degrees

Standard Number: 2  
Identify paths between points on a grid or coordinate plane and compare the lengths of the paths; e.g., shortest path, paths of equal length

Standard Number: 3  
Demonstrate and describe the differences between covering the faces (surface area) and filling the interior (volume) of three-dimensional objects

Standard Number: 4
  
Demonstrate understanding of the differences among linear units, square units and cubic units

Use Measurement Technique & Tools
Standard Number: 5  
Make conversions within the same measurement system while performing computations

Standard Number: 6  
Use strategies to develop formulas for determining perimeter and area of triangles, rectangles and parallelograms, and volume of rectangular prisms

Standard Number: 7  
Use benchmark anglesto estimate the measureof angles, and use a tool to measure and draw angles

Grade: Gr. 6
Measurement Standard
Measurement Units

Standard Number: 1  
Understand and describe the difference between surface area and volume

Use Measurement Technique & Tools
Standard Number: 2  
Use strategies to develop formulas for finding circumference and area of circles; and to deteermine the area of sectors.

Standard Number: 3  
Estimate perimeter or circumference and area for circles, triangles and quadrilaterals, and surface area and volume for prisms and cylinders by
a   estimating lengths using string or links, areas using tiles or grid, and volumes using cubes
b   measuring attributes (diameter, side lengths, or heights) and using established formulas for circles, triangles, rectangles, parallelograms and rectangular prisms
   
Standard Number: 4  
Determine which measure (perimeter, area, surface area, volume) matches the context for a problem situation; e.g., perimeter is the context for fencing a garden, surface area is the context for painting a room

Standard Number: 5  
Understand the difference between perimeter and area, and demonstrate that two shapes may have the same perimeter, but different areas or may have the same area, but different perimeters

Grade: Gr. 7
Measurement Standard
Measurement Units

Standard Number: 1  
Select appropriate units for measuring derived measurements; e.g., miles per hour, revolutions per minute

Standard Number: 2  
Convert units of area and volume within the same measurement system using proportional reasoning and a reference table when appropriate; e.g., square feet to square yards, cubic meters to cubic centimeters

Use Measurement Technique & Tools
Standard Number: 3  
Estimate a measurement to a greater degree of precision than the tool provides

Standard Number: 4  
Solve problems involving proportional relationships and scale factors; e.g., scale models that require unit conversions within the same measurement system

Standard Number: 5  
Analyze problem situations involving measurement concepts, select appropriate strategies, and use an organized approach to solve narrative and increasingly complex problems

Standard Number: 6  
Use strategies to develop formulas for finding area of trapezoids and volume of cylinders and prisms

Standard Number: 7  
Develop strategies to find the area of composite shapes using the areas of triangles, parallelograms, circles and sectors

Standard Number: 8  
Understand the difference between surface area and volume and demonstrate that two objects may have the same surface area, but different volumes or may have the same volume, but different surface areas

Standard Number: 9  
Describe what happens to the surface area and volume of a three-dimensional object when the measurements of the object are changed; e.g., length of sides are doubled

Grade: Gr. 8
Measurement Standard
Measurement Units

Standard Number: 1  
Compare and order the relative size of common U.S. customary units and metric units; e.g., mile and kilometer, gallon and liter, pound and kilogram

Standard Number: 2  
Use proportional relationships and formulas to convert units from one measurement system to another; e.g., degrees Fahrenheit to degrees Celsius

Use Measurement Technique & Tools
Standard Number: 3  
Use appropriate levels of precision when calculating with measurements

Standard Number: 4  
Derive formulas for surface area and volume and justify them using geometric models and common materials
a   the surface area of a cylinder as a function of its height and radius
b   that the volume of a pyramid (or cone) is one-third of the volume of a prism (or cylinder) with the same base area and height

Standard Number: 5  
Determine surface area for pyramids by analyzing their parts

Standard Number: 6
  
Solve and determine the reasonableness of the results for problems involving rates and derived measurements, such as velocity and density, using formulas, models and graphs

Standard Number: 7  
Apply proportional reasoning to solve problems involving indirect measurements or rates

Standard Number: 8  
Find the sum of the interior and exterior angles of regular convex polygons with and without measuring the angles with a protractor

Standard Number: 9  
Demonstrate understanding of the concepts of perimeter, circumference and area by using established formula for triangles, quadrilaterals, and circles to determine the surface area and volume of prisms, pyramids, cylinders, spheres and cones. (Note: Only volume should be calculated for spheres and cones

Standard Number: 10  
Use conventional formulas to find the surface area and volume of prisms, pyramids and cylinders and the volume of spheres and cones to a specified level of precision

Grade: Gr. 9
Measurement Standard
Measurement Units

Standard Number: 1  
Convert rates within the same measurement system; e.g., miles per hour to feet per second; kilometers per hour to meters per second

Use Measurement Technique & Tools
Standard Number: 2  
Use unit analysis to check computations involving measurement

Standard Number: 3  
Use the ratio of lengths in similar two-dimensional figures or three-dimensional objects to calculate the ratio of their areas or volumes respectively.

Standard Number: 4  
Use scale drawings and right triangle trigonometry to solve problems that include unknown distances and angle measures

Standard Number: 5  
Solve problems involving unit conversion for situations involving distances, areas, volumes and rates within the same measurement system

Grade: Gr. 10
Measurement Standard
Use Measurement Technique & Tools

Standard Number: 1  
Explain how a small error in measurement may lead to a large error in calculated results

Standard Number: 2  
Calculate relative error

Standard Number: 3  
Explain the difference between absolute error and relative error in measurement

Standard Number: 4  
Give examples of how the same absolute error can be problematic in one situation but not in another; e.g., compare “accurate to the nearest foot” when measuring the height of a person versus when measuring the height of a mountain

Standard Number: 5  
Determine the measures of central and inscribed angles and their associated major and minor arcs

Grade: Gr. 11
Measurement Standard
Measurement Units

Standard Number: 1  
Determine the number of significant digits in a measurement

Standard Number: 2  
Use radian and degree angle measures to solve problems and perform conversions as needed

Use Measurement Technique & Tools
Standard Number: 3  
Derive a formula for the surface area of a cone as a function of its slant height and the circumference of its base

Standard Number: 4  
Calculate distances, areas, surface areas and volumes of composite three-dimensional objects to a specified number of significant digits

Standard Number: 5  
Solve real-world problems involving area, surface area, volume and density to a specified degree of precision

Grade: Gr. 12
Measurement Standard
Use Measurement Technique & Tools

Standard Number: 1  
Solve problems involving derived measurements; e.g., acceleration and pressure

Standard Number: 2  
Use radian measures in the solution of problems involving angular velocity and acceleration

Standard Number: 3  
Apply informal concepts of successive approximation, upper and lower bounds, and limits in measurement situations; e.g., measurement of some quantities, such as volume of a cone, can be determined by sequences of increasingly accurate approximations.