Cheryl Erickson

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Latest Videos

Subtracting with integer chips

Subtracting with integer chips

Cheryl Erickson

210.2K views·13 years ago

Graphing inequalities on a number line

Graphing inequalities on a number line

Cheryl Erickson

264 views·13 years ago

Math Notebooks

Math Notebooks

Cheryl Erickson

404 views·13 years ago

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