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Worksheet
Curated OER

Least Common Multiple

For Students 6th - 9th
Give students detailed instructions on how to find the Least Common Multiple as well as practice with this thorough introductory worksheet. Instructions for this worksheet include an explanation of both guess and check as well as prime...
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Worksheet
Common Core Sheets

Comparing Numerically (Different Denominator)

For Students 4th - 5th Standards
Compare fractions with different denominators in a handy Common Core based worksheet. Fourth graders decide which fraction is larger or smaller based on the parts that make up a whole (denominator) and the parts being described...
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Lesson Plan
Curated OER

Discovering Differences Between Internet Search Engines

For Teachers 3rd - 12th
Learners explore the differences in search engines available on the Internet. Most users are unaware of the differences between search engines. Some sample larger or smaller portions of the World Wide Web than others.
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Lesson Plan
Curated OER

Subtraction

For Teachers 1st - 2nd
Students explore subtraction. In this mathematics activity, students practice how to subtract numbers from 20, 100 and other whole numbers. Students realize that there are number bonds which can help with subtraction like 3 and 17 bonds...
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Lesson Plan
Curated OER

Mystery Math

For Teachers 6th - 8th
Here is an interesting "trick" your young mathematicians can perform. They are taught how to find any number's "digital root," by following a set of detailed instructions. The process works for any number, and is the type of math puzzle...
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Worksheet
Curated OER

Ordering Numbers

For Students 2nd - 3rd
For this recognizing number sequencing worksheet, students fill in the blanks with numbers just before, just after, and between given numbers, compare two numbers to identify if the correct words are is equal to, is less than or is...
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Lesson Plan
Illustrative Mathematics

How Many Leaves on a Tree?

For Teachers 9th - 12th Standards
This is great go-to activity for those spring or fall days when the weather beckons your geometry class outside. Learners start with a small tree, devising strategies to accurately estimate the leaf count. They must then tackle the...
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Lesson Plan
Curated OER

Investigation - Square Numbers and Triangle Numbers

For Teachers 5th
Fifth graders investigate growth patterns using blocks. In this square and triangle numbers lesson, 5th graders predict sizes of larger triangles and squares based on numerical patterns they observed while building. 
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Organizer
Curated OER

Arithmetic with Positive and Negative Numbers

For Students 6th - 9th
In this arithmetic with positive and negative numbers worksheet, students 5 multi-step problems.  Students find the sum of positive and negative integers.  Students practive multiplying and dividing positive and negative integers. 
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Worksheet
Curated OER

Multiplying Mixed Numbers Worksheet

For Students 8th - 9th
To practice multiplying fractions and mixed numbers, students choose a starting whole number and multiply it by a mixed number. Students then answer a number of questions about ratios for different problems. This worksheet is intended...
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Worksheet
Curated OER

Change a Fraction to a Decimal

For Students 5th - 7th
Upper elementary and middle schoolers change six fractions to decimals. The fractions involve one and two digit numbers. Pupils divide the larger number into the smaller, continuing the computations for six decimal places so they can...
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Lesson Plan
Virginia Department of Education

Biotechnological Issues and Bioethics

For Teachers 9th - 12th Standards
Culminate a bioethics unit with the implementation of a lesson that incorporates the Socratic method to encourage class feedback and participation. Pupils participate in a discussion on bioethics and morality, complete a writing seminar,...
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Lesson Plan
Illustrative Mathematics

Comparing Rational and Irrational Number

For Teachers 7th - 9th Standards
Algebra learners must know how to use rational numbers to approximate irrationals. This resource asks participants to decide which number is larger without using a calculator. It makes a great exercise to use as a five-minute transition...
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Worksheet
Curated OER

Changing Improper Fractions to Mixed Numbers

For Students 4th - 5th
In this fractions and mixed numbers worksheet, students change 10 improper fractions to mixed numbers. Answers and hints are available on-line; a reference web site for additional resources is given.
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Lesson Plan
Curated OER

Racing Along the Number Line

For Teachers 2nd - 4th
Manipulatives and visual models really help youngsters understand mathematical concepts. One activity provided here gives every learner their own white board and accompanying number. Then learners have to put themselves in order, holding...
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Worksheet
Curated OER

Periodically Puzzling

For Students 8th - 10th
In this periodic table worksheet, learners use the list of coded letters and clues that correspond to the represented elements in the first four periods of the periodic table to complete the chart at the bottom of the sheet. They...
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Lesson Plan
Curated OER

The Long and Short of It

For Teachers 4th
Fourth graders play a variety of ordering games to identify place value in whole numbers and decimals. They consider the importance of place value in dealing with money.
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Lesson Plan
Curated OER

Fractions: Jim and John

For Teachers 4th - 8th
Elementary and secondary learners investigate various concepts related to the study of fractions. They use word problems during the introduction to parts of a fraction and proceed to some of the basic operations of using fractions. The...
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Lesson Plan
Curated OER

Anchoring Numbers to Five and Ten

For Teachers 1st - 2nd
Students complete activities to relate numbers to each other. For this number connection lesson, students count number sets, count forward and backward, and complete other number recognition activities to learn how numbers are related.
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Worksheet
Curated OER

Negotiate the mind field

For Students 4th - 6th
In this fractions worksheet, students lead their troops through the land mines by moving from smaller fractions to larger fractions along a grid. Students complete 21 steps.
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Lesson Plan
Curated OER

Teenagers

For Teachers 1st
In this fast-paced activity, learners identify the order of numbers from 13 to 20. They practice greater than and less than with verbal responses to pairs of numbers. Suggested accompaniments include counting forward and backward to 20....
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Worksheet
Curated OER

Multiply Small and Large Numbers

For Students 6th - 8th
In this multiplication worksheet, middle schoolers multiply numbers with decimals. They multiply numbers smaller and larger than one. This two page worksheet contains twenty-four problems. Answers are provided on the last page.
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Lesson Plan
Curated OER

Narrow it Down: Numbers

For Teachers K - 6th
Elementary learners of all ages utilize their number knowledge by playing a 20 questions style game. They participate in a game in which they ask yes or no questions to a group leader in order to discover which number the leader has...
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Lesson Plan
Curated OER

Number-Line Squeeze

For Teachers 1st
First graders investigate numerals and size by ranking different numbers based upon value. In this number sense lesson, 1st graders practice using the terms smaller, larger, less and more in order to organize numbers on a number line....