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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
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Number in Statistics
Second graders add two and three digit numbers. They are taught how to calculate the mean and the midpoint. Students are shown how to calculate symmetrical set of numbers. They are shown a model adding the same to each increases the...
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Hooked On Problem Solving
Fourth graders use properties of operations and problem-solving strategies to do mental calculations, and look for patterns in the solutions. They create an array, using each of the digits 1-9 exactly once to form addition problems...
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Number in Geometry
Students use a number line to assist with their additions. They use a calculator to check for factors. Students are taught factors and multiples. They use array model of multiplication to define meaning. Students develop a wide range of...
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Comparing Apples With Apples 2
Students use fractions strips to demonstrate addition and subtraction of fractions. They explore finding common denominations, examining equivalent fractions, and simplifying fractions. Students may work in groups or independently.
Pennsylvania Department of Education
Links Away: Looking Back and Moving Forward
Students explore fact families. In this math lesson, students use links to model a fact family. Students solve addition and subtraction problems.
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Fractions: Adding Same Denominator
In this math instructional activity, students look for the answers to the addition with fractions of the same denominator. There is a button at the top of the page for the answers.
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Testing for Conductivity
Students test the conductivity of selected liquids and solids. They test the circuit by touching the two free ends of the wires together and add salt little by little recording the data after each addition. Finally, students predict...
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Speed + Graphing = Winners!
Fifth graders take addition timed tests every day for a two week period. Using the data from the timed tests, they create a bar graph using Microsoft Excel computer software, a personal bar graph using graph paper and colored pencils,...
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Slope Calculation
Middle schoolers practice calculating the slope of a line. They explain how the formula is derived and identify properties that are associated with positive, negative and undefined slopes. They complete an online activity as well.
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Miles Of Smiles
Young scholars investigate basic mathematical properties to solve multiplication and division problems. They solve word problems that are part of the instructional activity. Students are required to give written or oral justification for...
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My Dogs
Pupils use the properties of multiplication to solve problems. They recall the basic multiplication facts as well as write and solve problems that involve whole numbers.
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Polygons and Angles
Sixth graders estimate the measurement of angles and then measure the exact distance using an angle ruler. In groups, they explore shapes and recognize the characteristics acute, obtuse and right angles. Students sketch required shapes,...
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Math: A Geometric Neighborhood
Students, as a final project, draw a picture of their ideal neighborhood on a sunny day. In addition to the sun, their drawings include homes, trees, streets, and selected objects. Each object in their drawing has a written description...
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BASEBALL HOME RUN
Students determine whether a hit baseball is a home run or not by utilizing parametric equations to describe the path of the ball. They assess the importance of angles and velocity needed to hit a home run. In addition, in their own...
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Fluoride in Durango's Water-Helpful or Harmful?
Third graders complete several activities in their quest to find out about the addition of fluoride to city water. First, they create a guide sheet to help organize notes. The next two steps involve taking notes through guided practice....
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Underwater Picture of the Hudson River Estuary
Students identify important aspects of water quality such as slainity and turbidity. They test two of the water quality parameters and determine the quality of the water. In addition, they construct two sets of graphs based on data...
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Active Ingredient Screening Test for Plants
Students explore the growth of bacteria. They determine if various plant materials contain active ingredients that inhibit the growth of bacteria. In addition, they complete a student data sheet.
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Place Value Practice (Tenths)
Students practice strategies solving problems with basic facts, framework, domain and early additive part-whole. They recall the compatible numbers to ten, solve problems with small numbers using a part-whole strategy and recall ten and...
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Indicating Multiplication
In this multiplication worksheet, students complete multiplication times 4 and 7 and addition problems. Students complete 21 problems.
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Dr. Seuss Counting Activity
In this Dr. Seuss counting learning exercise, students solve a simple addition problem, counting "Yots in pots." A website reference is given for additional resources.
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Paint Plus
Using the computer and the Paint program, Students explore the different tools available in the paint program, and then create a picture showing two sets of pictures and an equation.
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Use Doubles to Add
In this adding with doubles worksheet, students read the word problems and use the addition property of doubles to help them solve the addition problems.
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Expressions and Operations
In this expressions and operations learning exercise, 9th graders solve and complete 7 different problems that include reading and solving various types of equations. First, they determine the number of seconds it takes light from the...
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