Curated OER
Estimation
In this estimation worksheet, students analyze a table with the diameter of four coins in fractional inches. Students solve 5 multiple choice problems in which estimating is used with fractions.
Curated OER
Multiplying Decimals and Mixed Numbers
Students multiply decimals and/or mixed numbers. They explore the effects of multiplying decimals and mixed numbers. They practice estimating answers when a number is multiplied by a decimal or mixed number.
Curated OER
Estimated Quotients Are Too Large or Too Small
For this division worksheet, 5th graders use division to find batting averages in 6 word problems. They divide the number of hits by the number of times at bat to find the quotients.
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Mystery Stars: Estimating Whole Numbers Using Fractions Shown on Sectors of a Circle
In this set of fraction worksheets, learners cut out 6 pages of circles that show fractions with stars covering different sections of circles. They show one section of the circle in order to estimate the whole number of stars by looking...
Curated OER
Rounding Out
Third graders round numbers between 0 and 1000 to the nearest 10 and to the nearest 100.
Curated OER
Teddy Bears and Friends
Children begin by making direct comparisons between objects and putting a number of objects into order according to length. They are also introduced to measuring with multi-link cubes which allows them to compare objects which cannot be...
Curated OER
What is the Average Height of Your Class?
In this statistics lesson, learners use an on-line form generator create a class-specific form, then complete the form, view a graph and data analysis, and draw conclusions.
Curated OER
Decimal Fractions
Students use rounding and compensating with whole numbers and explain how to use the empty number line to show additions and subtractions. They round and compensate in relation to decimal subtraction
Background
Curated OER
Scale Drawing
In this measuring lengths worksheet, students determine which units to use when measuring lengths, estimating lengths, and the errors made when measuring, Students estimate the lengths of each of the lines illustrate to the nearest unit....
Curated OER
Circles and Cylinders
In this circles and cylinders learning exercise, 10th graders solve and complete 22 various types of problems. First, they collect data for a radius and circumference for several different circles and calculate the quantity. Then,...
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What About Cantaloupes?
Second graders investigate the physical properties of cantaloupe using their senses. In this life science activity, 2nd graders estimate the weight of their sample. They get it's actual weight and compare it with their estimate.
Curated OER
Indirectly Direct
Student form and test hyptheses using indirect and direct observation. They launch marbles to determine the shape of a hidden object.
Illustrative Mathematics
The Lighthouse Problem
Long considered the symbol of safe harbor and steadfast waiting, the lighthouse gets a mathematical treatment. The straightforward question of distance to the horizon is carefully presented, followed by a look into the...
Noyce Foundation
Mixing Paints
Let's paint the town equal parts yellow and violet, or simply brown. Pupils calculate the amount of blue and red paint needed to make six quarts of brown paint. Individuals then explain how they determined the percentage of the brown...
Curated OER
Coordinate Grid: Mapping an Archaeological Site
Students examine how archaeologists preserve context of sites through use of rectangular grid or Cartesian coordinate system, and develop sense of distance by pacing off and estimating distances.
Curated OER
The Estimation Station
Students challenge "common knowledge" against newly learned estimation strategies and put those strategies into use. They consider variables in estimating different groups of objects and practice skills of representing numbers.
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Activity #3 Finding Mass
Students use graph paper to construct a graph and determine the slope of a straight line. They determine the weight (mass) of paper clips with a pan balance. Pupils weigh an unknown number of paper clips, and to interpret the graph to...
Curated OER
Infinite Secrets
Students duplicate the method that Archimedes used to estimate the value of pi. They complete a data table and find the approximate values of pi for three sets of polygons.
Curated OER
Worksheet 19
In this math worksheet, students try to fit a line to a set of data. Then they use the least squares method is based on minimizing the sum of the squares of the errors.
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Measure to the Nearest Inch: Practice
In this measuring worksheet, students practice measuring length to the nearest inch by first estimating and then measuring the illustrated objects. In the second set, students use a ruler to measure the given lengths and draw a line for...
Curated OER
Comparison of Snow Cover on Different Continents
Students use the Live Access Server (LAS) to form maps and a numerical text file of snow cover for each continent on a particular date. They analyze the data for each map and corresponding text file to determine an estimate of snow cover...
Curated OER
Pythagorean Theorem
Students solve problems using the Pythagorean Theorem. In this geometry activity, students identify the sides and angles of a right triangle. They find the different trigonometric ratios and solve using sine, cosine and tangent.
Curated OER
Jelly Belly: What a Wonderful "Bean"!
Learners explore how jelly beans are produced. They discuss the origins of the jelly bean and view a video about how jelly beans are prepared, tested, shaped, finished, and shipped and estimate the amount of jelly beans in a jar and sort...
Curated OER
Estimation and Computation
Second graders practice their estimation skills using blocks. In this math lesson plan, 2nd graders explain how estimating makes addition easier. They complete a worksheet after the lesson plan to reinforce new learning.