Curated OER
The Part-adder 1
Second graders investigate the addition of whole numbers. They mentally perform calculations involving addition and subtraction. They make sensible estimates and check the reasonableness of answers.
Curated OER
Adding and Subtracting Fractions with Like Denominators
Students add or subtract fraction parts of mixed numbers before adding or subtracting the whole number parts. In this fractions lesson, students learn to use a ruler to help them add and subtract fractions with like denominators.
Curated OER
Bean Addition
A hands-on lesson created students use beans as manipulatives to solve addition number sentences. Requires the book, Mission Addition by Loreen Leedy.
Curated OER
Regrouping With Remediation
Fourth graders complete multiplication, addition, and subtraction problems that all contain regrouping. In this regrouping lesson plan, 4th graders complete worksheets not provided.
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Thermometers Rising
Third graders read a Fahrenheit thermometer from an actual thermometer. In groups, they are provided with ink pads and a thermometer stamp. They use the stamps on plain white paper and use red pencil to take the temperature readings.
Curated OER
Basic Equivalencies
First graders manipulate coins to show equivalencies between pennies and dimes. Given specific values, 1st graders model the specified amounts by using pennies and dimes. Through use of a computer assisted trading coins, students...
Curated OER
Title Balancing With Tidy Numbers
Young scholars use math manipulatives (ice block sticks) to show the addition of two 2-digit numbers. They discuss short-cuts that might be used to make the problem easier. they apply the same principle for adding larger numbers, as well.
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