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Comparing Fractions
Students discuss the nature of fractions and compare fractions based on a similar whole to determine relative size.
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High School Mathematics Problems from Alaska: Predicting Plant Coverage
High schoolers participate in simulation as they examine vegetation in a square meter land plot. Students construct charts and a key to make predicitons about other land plots.
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Identify Plant Nutrient Requirements
Students are given standard elemental nutrients, identify plant nutrient requirements based on criteria outlined in assessment instructment.  They, are given standard elemental nutrients, provide all means and chemical symbols of plant...
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The Multiplier (small 2-digit by 1-digit numbers)
Second graders study digits in 2- or 3-digit whole numbers. They write and solve story problems which involve whole numbers, using addition, subtraction, multiplication, or division.
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The Divider (whole number remainders)
Third graders use the lesson to support division of whole numbers where there is either no remainder or whole number remainders. They are able to 
slit division problems into parts using known multiplication and division facts.
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Big Magic Squares
Students discover that magic squares are interesting objects in both mathematics proper and in recreational mathematics. So they are objects that students should have heard about and experienced.
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Word Problems -- Show Me The Money!
Students are introduced to techniques to help them solve word problems in a more effective way.  As a class, they perform the techniques together solving problems involving the concept of money.  They review how to write a dollar amount...
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Using Negative Numbers
Sixth graders practice using negative numbers by completing number equations.  In this math problem solving instructional activity, 6th graders discuss the different ways negative numbers can be used in a math problem and practice...
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The Part-Adder 2
Third graders use mental-math strategies to solve two-digit plus two-digit addition problems.  They observe and discuss online demonstrations, solve word problems as a class, and independently solve problems and describe their solutions...
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What's My Number?
Fifth graders use AppleWorks to stamp a given number to the thousandths place. They read, write and order integers, whole numbers and rational numbers. They represent place value using concrete or illustrated models.
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The Multiplier (larger 2-digit by 1-digit numbers)
Students utilize number sense applications to multiply two digit numbers.  They use "The Multiplier" and Internet source to partition and solve 2 digit by 1 digit multiplications.  Students describe how to solve 2-digit by 1-digit...
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Estimation With Percents
Students examine percents. In this percents lesson, students will estimate percentages. Using advertisements from a newspaper, students problem solve to determine the final price of a sale item.
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Decimal Sequences
In this math worksheet, students solve the problems that are intended to focus upon he sequences of decimals. The sheet is a teacher's guide.
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Cannot Buy Me Love
Students investigate the concepts that are related to finance and how it is used in the world. They take part in activities that are focused around the use of a spreadsheet while using a T-chart to simulate a ledger of credits and debits.
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Perform Accounting Functions
Learners practice performing various accounting functions.  Given analysis records, they prepare cost and revenue analysis based on specific criteria. They complete handouts and review their answers as a class.   They also discuss the...
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Finding the Percent of a Number in Fish Body Weight
Students use fractions to find the weight of fish. They use percentages to determine the correct amount to feed them. They organize their data into a graph and shares with the class.
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Team Puzzles
Fourth graders work in co-operative teams of four to complete a puzzle. Each student initially works independently, and then the team jointly puts together the four shapes they have individually made, to complete the puzzle.
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Create A Question
Students explore mathematical problem solving.  Given a case problem, students write a rule to solve problems involving decimal multiplication and division.  They invent problems, share them with the class, and solve other student's...
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Equivalent Numbers
Pupils work together matching numbers on index cards. They must match numbers in different forms, such a fractions and percentages. They compete with other groups in the class to get the most correct.
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This is to That
Students look at ratio, what it means for numbers or objects to be in a given ratio, and how ratios and fractions are related. They write and solve story problems which involve whole numbers, using addition, subtraction, multiplication,...
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The Clumsy Tiler N (Fractions)
Students explore patterns and geometric sequencing.  Students devise and use problem solving strategies to explore situations mathematically.  Students solve real life problems.  They demonstrate, with cardboard pieces, fraction and...
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Time Problems
Pupils make sensible estimates and check for reasonable results. They also solve problems with positive and negative integers using practical activities or models as needed.
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Eight Basic Elements of the Earth
Students 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 the...
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Adding Ten Tiles I
Students practice this problem that needs a certain amount of experimentation (trial and error) to get any answer at all. In the process they practice their basic number facts. However, to get the complete set of answers Students need to...