This is the definitive source for information on SI base units, derived units, squares, cubes, luminosity, field strength and flux density.

BIPM (Bureau International des Poids et Mesures) is an international organization, located in France, an equivalent of our National Institute of Standards and Technology (NIST). This site is the BIPM intro page to their official...

This task requires learners to make some sensible approximations of the amount of gas needed for a drive. They must choose a level of accuracy appropriate to limitations on measurement when reporting quantities. Aligns with N-Q.A.1 and...

This video lesson describes how to choose appropriate customary units for measuring objects. Students can check their understanding with an assessment.

[Free Registration/Login Required] The teacher will use this lesson plan flipchart to assess the student's ability to select and apply the appropriate unit of measure for an object.

[Free Registration/Login may be required to access all resource tools.] Choose appropriate tools and customary units for given measurement situations.

Students visit a 2nd and a 4th grade class to measure the heights of older students using large building blocks as a non-standard unit of measure. They can also measure adults in the school community. Results are displayed in...

This activity provides students with an opportunity to use a familiar game to determine the most appropriate units for a given situation.

This site allows you to type in an area of measurement you want to be converted. The site converts it for you!

Given nets for three-dimensional figures, the student will apply the formulas for the total and lateral surface area of three-dimensional figures to solve problems using appropriate units of measure.

Given information about composite fiugres, the student will determine the area of composite 2-dimensional figures comprised of a combination of triangles and parallelograms using appropriate units of measure.

In this lesson students will practice finding the perimeter of regular and irregular shapes with right angles and the appropriate units for measuring perimeter.

[Free Registration/Login may be required to access all resource tools.] Convert metric units of length and round to a given place value.

[Free Registration/Login may be required to access all resource tools.] Choose the appropriate metric units of mass or capacity given various measurement situations.

The principal purpose of the task is to explore a real-world application problem with algebra, working with units and maintaining reasonable levels of accuracy throughout. Aligns with N-Q.A.3, N-Q.A.1, and N-Q.A.2.

This site allows you to convert weight/mass measurements. For example converting tons to grams. CCSS.Math.Content.3.MD.A.2 Measure and estimate liquid volumes and masses of objects using standard units

This site allows you to type in various lengths you want to covert. For example, if you want to find out how many feet there are in 10 meters, you can submit that information and get the answer.

This interactive game has students apply skills in estimation, measurement, and basic addition using pearls. Students are asked to estimate the number of pearls in a treasure chest by making predictions and using number sense. The skills...

Standard HSN-Q.A.3 states: "Choose a level of accuracy appropriate to limitations on measurement when reporting quantities." This page explains what this standard means. Click on 'Sample Assignments' for some quick drills.

Many middle schoolers dream of designing their ideal bedroom. In this exercise, students will be required to limit their designs by size (as a specific volume) and price (a specific amount). They must design the floor plan, including...

This lesson unit guides students in developing strategies for modeling problems. The task focuses on investigating a cat shelter's claims about the rate of cat population growth. The unit includes a full lesson plan, examples of student...

A lesson to cover the standards about line segments. In this lesson, 2nd graders will measure and record the length of a line segment. Students will also compare lengths of a line but adding and subtracting line segments.

A practice quiz where students must choose the appropriate metric unit and amount to estimate the volume of each object. Includes hints.