Curated OER
It's Close Enough: Rounding and Estimation
Second graders round to the closest five, ten, and hundred. They use place-value concepts of grouping based upon powers of ten (thousandths, hundredths, tenths, ones, tens, hundreds, thousands) within the decimal number system.
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Piece of the Sky: Introduction for Making S'COOL Observations
Pupils observe and discuss cloud cover. They identify percent of cloud cover, calculate cloud cover by fraction and convert to a percent, and compare their models with the current real sky cloud cover.
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Probability Problems Concerning The Simpsons
In this probability worksheet, students calculate probability in ten problems concerning lottery situations and an episode of the television show The Simpsons.
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Dream Car Math
Students collect car cost comparison data from the "Car Wizard" web site to use as problem solving and for calculations related to math.
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Pardon me. Do You Have exChange for a Dollar?
Students are familiar with United States currency-dollar and cents. They are asked to compare it with currency of another country. Students explore currencies of various countries using the Internet, video, and hands-on activities. ...
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Money Place Value Chart
In this money learning exercise, students complete a chart showing the value of money and how the amount of money could be written in words. Five examples are given. Fifteen more numbers can be added. Money amounts are given in pounds.
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Words, Words, Words
Second graders choose estimation strategies in real-world problem situations and explain the choice. They work in groups of five using three different estimation methods to find out how many words are on a page of text.
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Calculator
In this mathematical calculations worksheet, 4th graders complete 12 multiplication problems by using a calculator. Students also develop an estimate for these problems.
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Eight Basic Elements of the Earth
Young scholars identify the concept of an element and work with an idea that all of the millions of substances on the earth are various combinations of only 8 elements. They work with the Periodic Table of the Elements and symbols of...
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Liquid Killer
Young scholars explore number sense applications and discuss strategies for multiplication and division using mental math. For cross-curricular purposes, they explore causes and effects of inequality and social injustice. Students...
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Examining Estimation
Second graders participate in various activities which help them explain and explain the difference between an estimate and an exact amount.
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Grade 3 Math-Advanced 1
In this grade 3 math instructional activity, 3rd graders answer a set of 21 multiple choice "advanced" questions covering a variety of grade 3 concepts. Answers may be submitted online.
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Mean, Median and Mode
In this mean, median and mode worksheet, students solve 6 problems involving mean, median and mode. Students are given a "hint" for problems 1 and 2.