Strategies for teaching addition and subtraction using open number lines, a Common Core 2nd grade math skill

Open Number Lines Explained

Strategies for teaching addition and subtraction using open number lines, a Common Core 2nd grade math skill

I love mental math strategies for computation, and an open number line is a great model for recording different strategies.  Click here  to ...

Open Number Lines

I love mental math strategies for computation, and an open number line is a great model for recording different strategies. Click here to ...

With the new Common Core Standards, students are encouraged to solve subtraction using a variety of strategies in order to strengthen number sense. This sheet will support your students' understanding of using an open number line.

With the new Common Core Standards, students are encouraged to solve subtraction using a variety of strategies in order to strengthen number sense. This sheet will support your students' understanding of using an open number line.

Use number lines to support number sense.  Make a number with painter's tape and use 0, 50 and 100 as benchmarks.

Quick Math Tip - Making Number Lines with Painter's Tape

Use number lines to support number sense. Make a number with painter's tape and use 0, 50 and 100 as benchmarks.

Mandy's Tips for Teachers: Strategies for Addition (Freebie!)

Strategies for Addition (Freebie!)

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