First Grade Numbers and Operations in Base Ten

Essential Skills and Knowledge	Teacher Resources	Student Resources
1.NBT.A.1 Extend the counting Sequence
Count to 120, starting at any number less than 120. In range, read and write numerals and represent a number of objects with a written numeral.	SMART Notebooks: Counting 1-5 Making Sets to 10 Counting and Writing Numbers to 10 Instant Number Recognition to 10 Ordering 3 Numbers Ordering Numbers to 12 Numbers in a Ten Frame Number Representation Compose and Decompose to 20 Skip Counting Skip Counting With a Chart Skip Counting Use or Make A Picture Use or Make a Table Before, After and Between Missing Numbers 100 chart Missing Numbers 1 Missing Numbers 2 Missing Number Numberline Mystery Number Caterpillar Counting How Many? Videos: Discovery: Prior to selecting the link, login to Discovery Education (aacp.discoveryeducation.com) Animals and Numbers Number of Objects Wixie: *Teachers login to Wixie, select the link, then assign to students.* Numberline 1-10 Number Order Pinata Counting Count by 2's Skip Counting Dot to Dot Skip Counting Hundreds Chart Ordinal Numbers	Interactive 100 Chart Counting Kids Counting Sheep Counting Feathers Counting Outside Counting on a ten frame Ordering Numbers Dice Game
1.NBT.B.2 Understand Place Value
Understand that two digits of two-digit number represent amounts of tens and ones.	SMART Notebooks: Tens and Ones Recognize Tens and Ones Tens and Leftovers Wixie: *Teachers login to Wixie, select the link, then assign to students.* Base Ten Base Ten Grouping Tens and Ones Place Value	Make A Ten Count Us In Number Track
Understand the following as special cases:
1.NBT.B.2.A 10 can be thought of as a bundle of ten ones-called a "ten"	Videos: Discovery: Prior to selecting the link, login to Discovery Education (aacps.discoveryeducation.com) Making Ten Song
1.NBT.B.2.B The numbers from 11-19 are composed of a ten and one, two, three, four, five, six, seven, eight,or nine ones.
1.NBT.B.2.C The numbers 10, 20, 30, 40, 50, 60, 70 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).	Videos: Discovery: Prior to selecting the link, login to Discovery Education (aacps.discoveryeducation.com) Counting By Tens Tens and Leftovers
1.NBT.B.3 Understand Place Value
Compare two digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with symbols.	SMART Notebooks: Greater Than and Less Than Find the Two Digit Number Two Digit Numbers on a Number Line Compose and Decompose Numbers to 20 Numbers Greater Than Comparing Two Digit Numbers Videos: Discovery: Prior to selecting the link, login to Discovery Education (aacps.discoveryeducation.com) Comparing Numbers Comparing One and Two-Digit Numbers Comparing Two Digit Numbers	Order and Compare Numbers Comparing Two Digit Numbers
1.NBT.C.4 Use Place Value Understanding and properties of operations to add and subtract.
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.	SMART Notebooks: Fit The Facts Mystery Number	Number Pieces
1.NBT.C.5 Use place value understanding and properties of operations to add and subtract.
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.	SMART Notebooks: Adding Tens Adding Tens Videos: Discovery: Prior to selecting the link, login to Discovery Education (aacps.discoveryeducation.com) Counting on a Number Line Wixie: *Teachers login to Wixie, select the link, then assign to students.* Adding with Blocks Missing Number	Addition on a Numberline Counting Back on a Numberline Addition Sentences Math Baseball Activities: Fairy Fog
1NBT.C.6 Use place value understanding and properties of operations to add and subtract.
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.	SMART Notebooks: Expanded Form Subtracting Tens Subtracting Tens from a Two Digit Number Place It Right Globs Of Goo

Teacher Notes

Numbers and Operations in Base Ten	Website/Activity	Content Standards/Technology Standards
Extend the Counting Sequence.	Counting Kids Counting Sheep Counting Feathers Counting Outside Counting on a ten frame Ordering Numbers Animals and Numbers Caterpillar Counting Counting 1-5 Counting and Writing Numbers to 10 Instant Number Recognition to 10 Making Sets to 10 Ordering 3 Numbers Ordering Numbers to 12 Numbers in a Ten Frame Compose and Decompose to 20 Skip Counting Skip Counting With a Chart Skip Counting How Many? Before, After, Between Dice Game Missing Numbers 100 Chart Missing Numbers 1 Missing Numbers 2 Missing Numbers Numberline Mystery Number Numberline Number Order Pinata Counting Skip Counting Counting by 2's Skip Count Dot to Dot Fruit Shoot Dog Bone Hundreds	Common Core: 1. NBT.1.ACount to 120 starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral. ISTE Student Standards addressed: 1. Empowered Learners 5. Computational Thinker
Understand Place Value.	Base Ten Counting Make A Ten Count Us In Number Track Catch Ten Making Ten Song Counting By Tens Tens and Leftovers Tens and Ones Number Representation Recognize Tens and Ones Greater Than and Less Than Tens and Leftovers Find the Two Digit Number Two Digit Numbers on a Number Line Compose and Decompose Numbers to 20 Numbers Greater Than Base Ten Base Ten Grouping Tens and Ones Place Value	Common Core: 1.NBT.2 Understand that the two digits of a two-digit number represent amount of tens and ones. 1.NBT.2a Understand the following as a special case: 10 can be thought of as a bundle of ten ones- called a “ten”. 1.NBT.2b Understand the following as a special case: the numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones. 1.NBT.2c Understand the following as a special case: the numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones). ISTE Student Standards Addressed: 1. Empowered Learners 5. Computational Thinker
Understand Place Value.	Order and Compare Numbers Comparing Two Digit Numbers Number Comparison Comparing Two Digit Numbers Comparing Numbers Comparing One and Two-Digit Numbers Comparing Two Digit Numbers	Common Core: 1.NBT.3 Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparison with the symbols >, =, <. ISTE Student Standards Addressed: 1. Empowered Learners 5. Computational Thinker
Use place value understanding and properties of operations to add and subtract.	Addition on a Numberline Counting Back on a Numberline Addition Sentences Math Baseball Addition Machine Counting on a Number Line Adding Tens Adding Tens Expanded Form Subtracting Tens Subtracting Tens from a Two Digit Number Adding With Blocks Missing Number Fairy Fog Splat Square	Common Core: 1.NBT.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. 1.NBT.5 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used. 1.NBT.6 Subtract multiples of 10 in the range of 10-90 from multiples of 10 in the range of 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. ISTE Stduent Standards Addressed: 1. Empowered Learners 5. Computational Thinker

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