# Number Talks Teaching Resource Pack – Grade 1

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A collection of number talks teaching resources that support meaningful and highly engaging conversations in the mathematics classroom.

Number talks are a daily, math activity that allow students to have meaningful and highly engaging conversations about mathematics. Incorporating these short, ten-minute daily exercises into your classroom routine not only help students develop mental math and flexible thinking about numbers and operations, but also provide opportunities for them to investigate and apply mathematical connections and relationships.

This teaching resource pack supports number talks in the classroom with a range of task cards, a set of hand signal posters, and sentence starters for students to use in their conversations.

This teaching resource pack includes:

- Number Talks – Sentence Starters Poster Pack
- Number Talks – Hand Signal Poster Pack
- Number Talks – Comparing Numbers Task Cards
- Number Talks – Making Ten Task Cards
- Number Talks – Place Value Task Cards
- Number Talks – Ten Frame Task Cards
- Number Talks – Target Number Task Cards
- Number Talks – Subitizing Task Cards
- Number Talks – Balancing Equations Task Cards

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#### Common Core State Standards alignment

Grade 1 > Standards for Mathematical Practice > Operations & Algebraic Thinking > Understand and apply properties of operations and the relationship between addition and subtraction > **CCSS.MATH.CONTENT.1.OA.B.3**

Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)

Grade 1 > Standards for Mathematical Practice > Operations & Algebraic Thinking > Add and subtract within 20 > **CCSS.MATH.CONTENT.1.OA.C.6**

Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).

Grade 1 > Standards for Mathematical Practice > Operations & Algebraic Thinking > Work with addition and subtraction equations > **CCSS.MATH.CONTENT.1.OA.D.7**

Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

Grade 1 > Standards for Mathematical Practice > Operations & Algebraic Thinking > Work with addition and subtraction equations > **CCSS.MATH.CONTENT.1.OA.D.8**

Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ - 3, 6 + 6 = _.

Grade 1 > Standards for Mathematical Practice > Number & Operations in Base Ten > Understand place value > **CCSS.MATH.CONTENT.1.NBT.B.2**

Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:

Grade 1 > Standards for Mathematical Practice > Number & Operations in Base Ten > Understand place value > **CCSS.MATH.CONTENT.1.NBT.B.3**

Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.

Grade 1 > Standards for Mathematical Practice > Number & Operations in Base Ten > Use place value understanding and properties of operations to add and subtract > **CCSS.MATH.CONTENT.1.NBT.C.4**

Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.

Grade 1 > Standards for Mathematical Practice > Number & Operations in Base Ten > Use place value understanding and properties of operations to add and subtract > **CCSS.MATH.CONTENT.1.NBT.C.5**

Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

Grade 1 > Standards for Mathematical Practice > Number & Operations in Base Ten > Use place value understanding and properties of operations to add and subtract > **CCSS.MATH.CONTENT.1.NBT.C.6**

Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

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