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Interactive
Scholastic

Study Jams! Estimate Whole Numbers

For Teachers 2nd - 4th Standards
Expand on prior knowledge of place value to teach your class how to round whole numbers. This essential skill is explained with the help of a number line before introducing the explicit rules for rounding numbers up and down. Work...
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Handout
ProCon

Penny

For Students 9th - 12th Standards
Twenty-nine percent of Americans want to abolish the one-cent coin, which begs the question: Is a penny saved really a penny earned? Scholars read fascinating facts about the history of the penny in preparation for a class debate or...
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Assessment
Concord Consortium

Fermi Time

For Students 9th - 12th Standards
It's all just a matter of time. The resource provides four Fermi questions in reference to time. The questions are open-ended and require classmates to make use of estimation and dimensional analysis.
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Lesson Plan
Curated OER

How Many Stars in the Milky Way?

For Teachers 8th - 11th
Students perform an experiment in which they will use a statistical method called `sampling' to count to a billion (and beyond). Students practice sampling by estimating the number of characters on a page from the classified section of a...
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Worksheet
Curated OER

Rounding Numbers

For Students 7th - 8th
In this pre-algebra learning exercise, students round 6 whole numbers to the underlined place. They round to an indicated place value in 6 problems. Students round to the underlined place value in 6 decimal numbers. They round to the...
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Lesson Plan
Curated OER

Money Matters

For Teachers 3rd
Third graders make fair trades and exchanges of their money in order to have practical experiences with the essential "rules" of our place value system. They create groupings of tens, hundreds, thousands using play money and place value...
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Handout
K12 Reader

5th Grade Master Spelling List

For Students 4th - 5th Standards
Here's a spelling program that includes 36 lists of 21 words and 20 suggestions for weekly activities. Each list includes common and proper nouns, sight words, academic vocabulary, and words built on a specific Greek roots.
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Worksheet
Curated OER

Percent of Change

For Students 8th - 10th
In this algebra worksheet, students convert between percents and decimals. They calculate sales tax, discounts and relative errors. There are 4 questions with an answer key.
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Lesson Plan
Curated OER

The Meaning of Whole Numbers

For Teachers 4th - 8th
In this whole numbers worksheet, students fill in different charts asking about the place value of various whole numbers. Students complete 8 problems.