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Addition and subtraction

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10 Frame Manipulatives

- Lesson plan -

Add multiple 5, 10 or 20 frame manipulatives on your interactive whiteboard.

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100 Bead String

- Activity -

A 100 bead string with alternating groups of 5 or 10 red and 10 white beads.

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Abacus

- Activity -

Learn how to add and subtract.

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Abacus (vertical)

- Activity -

Learning how to add and subtract.

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Add & Subtract Decimals

- Lesson plan -

Add and subtract decimals to solve problems. Solve problems involving money.

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Add & Subtract Fractions

- Lesson plan -

Develop fluency with addition and subtraction of non-negative rational numbers with unlike denominators.

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Add & Subtract Whole Numbers

- Lesson plan -

Develop and analyze strategies for adding and subtracting numbers.

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Adding & Subtracting Decimals

- Lesson plan -

Add and subtract decimals, with instruction and practice targeted at correctly organizing numbers to avoid typical computational errors.

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Adding & Subtracting Integers

- Lesson plan -

Add and subtract integers in real-life situations including temperature, bank account balances and sea level.

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Adding & Subtracting Rational Numbers

- Lesson plan -

Add and subtract rational numbers including negative fractions. Use absolute value to solve addition and subtraction problems.

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Adding & Subtraction Fractions with Unlike Denominators

- Lesson plan -

Use fraction models to add and subtract fractions with unlike denominators, and progressing to solve addition and subtraction problems without modeling.

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Addition & Subtraction

- Lesson plan -

Develop and analyze strategies for adding and subtracting numbers.

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Addition & Subtraction

- Lesson plan -

Students will practice beginning addition and subtraction facts. They will be introduced to the inverse relationship of addition and subtraction.

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Addition and Subtraction

- Lesson plan -

Solve addition and subtraction problems, including word problems involving two-and-three digit numbers. Complete in addition and subtraction sentence with missing addends including inverse relationships between and addition and subtraction.

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Algebraic Expressions

- Activity -

Learn how to translate English phrases into algebraic expressions.

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Bead Necklace

- Activity -

A clear and simple bead necklace.

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