TeachEngineering
Teach Engineering: About Accuracy and Approximation
Students learn about the concepts of accuracy and approximation as they pertain to robotics, gain insight into experimental accuracy, and learn how and when to estimate values that they measure. Students also explore sources of error...
PBS
Pbs Learning Media: Estimating Time From Rate
Harry estimates how long it will take him to get to the front of a long ticket line in this Cyberchase video segment.
Science Buddies
Science Buddies: M&m Geometry
Geometry is the study of how to use math to describe and investigate different points, lines and shapes. The way that a shape is described in geometry is with a formula, which is simply a mathematical way to calculate different...
National Council of Teachers of Mathematics
Nctm: Figure This: What's My Angle?
Do people with big hands have larger angles between their fingers? See if you can find the answer this question when you try this math challenge on estimating and measuring angles. Discover how understanding angles and geometric shapes...
Teaching Treasures Publications
Teaching Treasures: Year Eight Nine Math (Page 3)
This interactive worksheet focuses on math concepts such as algebra, measurement, geometry, problem solving, and number sense. Answers to questions are available immediately and can be printed. Help links are also available to learners...
National Council of Teachers of Mathematics
Nctm: Figure This: Chocolate (Pdf)
Here's a delicious math challenge for chocolate lovers! Use your estimation and measurement skills to discover which irregular shaped, chocolate covered cookie has the largest surface area. A one-page activity from the NCTM Math...
NumberNut
Number Nut: Breaking Up a Day Into Hours
A concise lesson that examines the concepts of time and measurement by breaking a day up into hours. The lesson lists common time referents and important time related facts to remember. Students can practice time telling skills with the...
Science Education Resource Center at Carleton College
Serc: Examining Topography Stream Discharge Sherburne National Wildlife Refuge
Students problem solve stream discharge by estimating, measuring, and collecting data. Students graph actual contour lines, and use these measurements to hypothesize stream discharge and sediment load from a restored wetland using a dry...
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.
E-learning for Kids
E Learning for Kids: Math: Eiffel Tower: Roman Numerals and Angles
Students will play learning games to explore expanded notation and angles such as identifying, measuring, and estimating. They will also convert Roman numerals into numbers.
Mangahigh
Mangahigh: Data: Estimate the Mean Using Grouped Results
Students watch an online tutorial on the concept of estimating the mean. After watching, students test their knowledge by attempting ten practice problems that increase or decrease in difficulty based on their answers.
Illustrative Mathematics
Illustrative Mathematics: N q.a.3: Calories in a Sports Drink
The goal of the task is to stimulate a conversation about rounding and about how to record numbers with an appropriate level of accuracy, tying in directly to the standard N-Q.3. Aligns with N-Q.A.3.
Annenberg Foundation
Annenberg Learner: From Corner to Corner
Measure the lengths and diagonals of three squares with a ruler. Look over your measurements and try to come up with a rule of thumb for estimating the length of a diagonal if you know the length of a side.
Shodor Education Foundation
Shodor Interactivate: Comparison Estimator
This activity allows the user to compare to quantities by estimating. Students use three types of estimations: counting, length, and area. An interactive activity and teacher resources are included.
Shodor Education Foundation
Shodor Interactivate: Lesson: Estimation
This lesson plan is designed to help learners learn to make estimates. Resources are linked to help support the teacher and offer exploration and practice to students.
BBC
Bbc: Angles
You can pick up some valuable pointers on angles and lines here. When you finish working your way through the pages you can take an on-line "Test Bite," and check your understanding.
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.
E-learning for Kids
E Learning for Kids: Math: Dojo: Money
Students will play learning games to explore money in different ways, such as identifying, adding, and subtracting values.
PBS
Pbs Teachers: Soak It Up [Pdf]
Compare three prototypes of paper towels using strategies to find the best value in terms of cost and quality. Determine the surface area of a water stain on a paper towel using a transparent grid.
Khan Academy
Khan Academy: Estimate Volume (Milliliters and Liters)
Practice estimating the volume of real life objects using milliliters and liters. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
University of Cambridge
University of Cambridge: Nrich: Angle A
Sharpen your logic and angle recognition skills by working on this interactive challenge. Solution available.
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.
Khan Academy
Khan Academy: Estimate Mass (Grams and Kilograms)
Practice estimating the mass of real life objects using grams and kilograms. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas Instruments
Texas Instruments: Smile Mathematics App
This App contains five games that reinforce skills from the number and operations, geometry, and measurement standards. These games help students build skills in ordering numbers, choosing equivalent fractions, estimating and drawing...