"The purpose of Number Talks is to get students to think about number… not in the addition or subtraction sense… but in the ability to take numbers apart, to know what 'Five' or 'Six' or 'Ten' is. It’s the ability to connect what they know about one number to help them with another number."
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This blog post provides some great ideas for first grade Number Talks sessions. These 10-15 minute activities can be centered around the rekenrek or dot cards and are designed to reinforce students’ understanding of number and quantity.