Better Lesson
Better Lesson: Estimate Length in Inches
Second graders will be able to estimate the lengths of objects by mentally partitioning the lengths into inches. A video, worksheets, and a detailed lesson plan are included.
US Census Bureau
U.s. Census Bureau: Population and Housing Unit Estimates
This site is prepared by the U.S. Census Bureau and has numerous links to topics such as national, state, and county estimates, and much more. Estimates are also available for previous years.
Math Planet
Math Planet: Learn How to Estimate Calculations
Gain an understanding of how to estimate calculations by viewing examples and a video lesson.
Quia
Ixl Learning: Estimate Products
Estimate the product by rounding to the nearest ten before multiplying.
TED Talks
Ted: Ted Ed: A Clever Way to Estimate Enormous Numbers
Discover how powers of 10 can be used to estimate large numbers by watching this animated video. [4:15]
Scholastic
Scholastic: Study Jams! Math: Addition and Subtraction: Estimate Sum, Difference
Complete this step by step lesson to estimate the sum and difference then test yourself.
Quia
Ixl Learning: Estimate Sums With Numbers Up to 100,000
Practice rounding numbers to the nearest ten to estimate the sum.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Estimate the Quotient [Pdf]
Use strategies to estimate the quotient.
Khan Academy
Khan Academy: Estimate Lengths
Sal estimates lengths using units of inches, feet, centimeters, and meters. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints.
Better Lesson
Better Lesson: Estimate Lengths in Inches
Second graders will be able to estimate the lengths of objects by mentally partitioning the lengths into inches.
Shodor Education Foundation
Shodor Interactivate: Comparison Estimator
Use this applet to practice your estimating skills comparing length, area, counting or a random sampling of those topics. You can also adjust the difficulty and the precision needed. The applet also lets you know how close you are to the...
University of Georgia
University of Georgia: Texas Area Estimate
Drawings and discussion of several methods to estimate the area of an irregular shape, like the state of Texas.
Physics Aviary
Physics Aviary: Center of Mass Estimated
Estimate the location of the center of mass of systems of particles. You will have one minute to estimate as many centers of mass as possible.
Mangahigh
Mangahigh: Number: Estimates and Approximations
Estimate numbers by rounding whole numbers and decimals.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Rounding to Estimate Sums and Differences
[Free Registration/Login may be required to access all resource tools.] Estimate sums and differences by rounding decimals to whole numbers.
Other
Cern High School Teachers Programme: An Estimate of the Mass of the Positron
This guides the reader through the analysis of a bubble chamber photograph in order to estimate the mass of the positron. The analysis is mathematical.
Khan Academy
Khan Academy: Practice: Estimate Volume (Milliliters and Liters)
A practice quiz where students must choose the appropriate metric unit and amount to estimate the volume of each object. Includes hints.
American-Israeli Cooperative Enterprise
Jewish Virtual Library: Estimated Number of Jews Killed During World War Ii
Table broken down by country showing estimated numbers of Jewish people killed in each area during World War II.
Columbia University
Nasa: Sedac: Population, Landscape, and Climate Estimates
[Free Registration/Login Required] A huge resource for researchers without GIS capabilities who need data on population and land area by country across a range of physical characteristics. These include measures such as the number of...
Texas Education Agency
Texas Gateway:estimate and Find Solutions to Problems With Similarity and Rates
Given application problems involving similarity and rates, the student will estimate and determine the solutions to the problems.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Estimate the Quotient [Pdf]
This activitiy asks students to randomly select a one-digit divisor and a three-digit dividend and estimate the quotient mentally. Students must then explain why they believe their estimate is accurate.
Shodor Education Foundation
Shodor Interactivate: Estimator
This activity allows the user to practice estimation skills. Students use three types of estimations: counting, length, and area. An interactive activity and teacher resources are included.
ClassFlow
Class Flow: Estimate Add and Subtract
[Free Registration/Login Required] The teacher will use this lesson plan to teach students how to estimate.
Khan Academy
Khan Academy: Estimate to Add and Subtract Multi Digit Whole Numbers
Use estimation to find a reasonable solution to multi-digit addition and subtraction problems. Numbers are less than or equal to 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
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