Curated OER
Symmetry of the Addition Table
Help your class discover the commutative property of addition with this exploration of the addition table. By folding and coloring the table, a symmetry is found that directs students to an understanding of this crucial mathematical...
Curated OER
Booster (pg.13)
In this addition and multiplication worksheet, learners put a circle around 2 numbers out of 9 that add up to 140, put in the missing digit in 1 multiplication problem and fill in 3 circles with digits when added to the other digits, add...
Curated OER
Decorate-a-Cookie
Students use cookies and candy to practice finding the sum of three single-digit numbers.
Curated OER
Booster
In this addition worksheet, students put a circle around 2 numbers out of 9 that add up to 99, put in the missing digit in 1 multiplication problem and supply 3 missing numbers in a triangle in order that each edge adds up to 125.
Curated OER
My Test Book: Addition and Subtraction
In this online interactive math skills worksheet, students solve 10 multiple choice math problems that require them to add and subtract using 1 and 2 digit numbers. Students may submit their answers to be scored.
Pennsylvania Department of Education
Comparing Sets
Young scholars count back with cubes to model subtraction problems. In this subtraction lesson plan, students compare sets of problems and record their results in a table.
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Calculator
Students explore the calculator utility function on a Macintosh computer. In this calculation lesson, students launch the calculator feature and complete a problem solving worksheet.
Curated OER
Easy Estimation
Students use estimation as a math strategy. Students estimate the number of small snacks that are presented to them. Students count the snack items after they have estimated how many there are, before the class snack on a daily basis.
Curated OER
The 1 That Got Away
Students explore number properties. They using multilink blocks to explore doubling of the numbers and explore the patterns to investigate 2 to the power of n and how it is written. In addition, they usse the 100s board, number line and...