Students determine the coefficient of restitution (or the elasticity) for super balls. Working in pairs, they drop balls from a meter height and determine how high they bounce. They measure, record and repeat the process to gather data to calculate average bounce heights and coefficients of elasticity. Then they extrapolate to determine the height the ball would bounce if dropped from much higher heights.

Use an astrolabe to measure the height of objects, and see seasonal changes over time.

Students work in pairs to measure length by lining up cubes along the longest side of an item. They count and record length by counting the number of cubes.

Lecture notes on data and models that financial professionals utilize to measure risk

Students do work by lifting a known mass over a period of time. The mass and measured distance and time is used to calculate force, work, energy and power in metric units. The students' power is then compared to horse power and the power required to light 60-watt light bulbs.

Relation of purpose of data to data requirements. Relation of data to costs.
Accuracy requirements of measurements and error propagation:
Related to a problem the required accuracy of measurements and the consequences for accuracy in the final result are discussed. Different types of errors are handled. Propagation of errors; for dependent and independent measurements, from mathematical relations and regression is demonstrated. Recapitulated is the theory of regression and correlation.
Interpretation of measurements, data completion: By standard statistical methods screening of measured data is performed; double mass analysis, residual mass, simple rainfall-runoff modelling. Detection of trends; split record tests, Spearman rank tests. Methods to fill data gaps and do filtering on data series for noise reduction.
Methods of hydrological measurements and measuring equipment: To determine quantitatively the most important elements in the hydrological cycle an overview is presented of most common hydrological measurements, measuring equipment and indirect determination methods i.e. for precipitation, evaporation, transpiration, river discharge and groundwater tables. Use, purpose and measurement techniques for tracers in hydrology is discussed.
Advantages and disadvantages and specific condition/application of methods are discussed. Equipment is demonstrated and discussed.
Areal distributed observation: Areal interpolation techniques of point observations: inverse distance, Thiessen, contouring, Kriging. Comparison of interpolation techniques and estimation of errors. Correlation analysis of areal distributed observation of rainfall
Design of measuring networks: Based on correlation characteristics from point measurements (e.g. rainfall stations) and accuracy requirements the design of a network of stations is demonstrated.

Basic of hyperinflation. Weimar Germany, Hungarian Pengo and Zimbabwean Dollar. Created by Sal Khan.

This short video and interactive assessment activity is designed to give fourth graders an overview of metric units of weight.

This short video and interactive assessment activity is designed to teach fifth graders about visually finding weight in compound units.

This short video and interactive assessment activity is designed to give fourth graders an overview of comparison of weights (metric units).

This short video and interactive assessment activity is designed to give fifth graders an overview of comparison of weights (metric units).

"In Search of GLOBE Data" contains two self-paced projects on using the graphing and mapping tools available on the GLOBE Web site (www.globe.gov (more info) ). These sequential how-to guides on searching for schools with usable data include questions inquiring into what the user sees or thinks about the data presented. These questions are intended to stimulate the thinking process. An answer sheet has been provided to assist the facilitator of this activity. These student worksheets are followed by an advanced search for GLOBE data. This is a step-by-step, or click-by-click, how-to guide to help expand the list of tools when searching for GLOBE data. An Advanced Search is also included; however there are no questions associated with this part of the activity. If the user proceeds directly from the Student Worksheets they may be able to construct their own questions when visualizing the data using these advanced tools.

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This article discusses how the study of weather can meet the NCTM Data Analysis and Probability standard. Links to lessons for grades K-2 and 3-5 are provided.

The following learning activities are PowerPoint slides and video that emphasize various topics in Measurements--The Metric Sysytem and SI units; Converting Units; Significant Figures; Measuring Volume and Mass; Density and Specific gravity; Measuring Temperature. Each includes basic concepts and learning checks to test your progress.   

Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit. Calculate the number of significant figures for an assortment of numbers.

Students will record the temperature daily, using a bar graph, color coded bars. this monthly bar graph helps students understand phenology and interpreting graphs.

This lesson plan helps students know what they do to take care of their bodies. In addition, it gives students a chance to practice their graphing skills.

This activity helps students to understand numbers. The teacher should accept without comment any number a student gives and record it on the whiteboard.

In this lesson, students will choose a feature in the outdoor classroom to measure using a selected tool (tape, ruler, or yard/meter stick). They will sketch feature and label its dimensions.