2ND GRADE MATH VIDEOS
OPERATIONS AND ALGEBRAIC THINKING
A. Represent and solve problems involving addition and subtraction.
B. Add and subtract within 30.
Make a Ten to Add on an Open Number Line
Make a Ten to Subtract on an Open Number Line
Use Addition & Counting On to Subtract
2.OA.B.2 Fluently add and subtract within 30 using mental strategies. By the end of 2nd grade, know from memory all sums of two one-digit numbers and related subtraction facts.
Ready Math Lesson 1 & 3
2.OA.B.2 Fluently add and subtract within 30 using mental strategies. By the end of 2nd grade, know from memory all sums of two one-digit numbers and related subtraction facts.
Ready Math Lesson 1 & 3
2.OA.B.2 Fluently add and subtract within 30 using mental strategies. By the end of 2nd grade, know from memory all sums of two one-digit numbers and related subtraction facts.
Ready Math Lesson 1
C. Work with equal groups of objects to gain foundations for multiplication.
NUMBER AND OPERATIONS IN BASE TEN
A. Understand place value.
B. Use place value understanding and properties of operations to add and subtract.
Make a Ten to Add with 2-digit Numbers
Using Addition to Subtract on an Open Number Line
Add Tens & Ones Using Place Value
2.NBT.B.5 Add within 100
Ready Math Lesson 7
2.NBT.B.5 Use place value understanding and properties of operations to add and subtract
Ready Math Lesson 8
2.NBT.B.7 Add and subtract within 1000 using strategies based on place value, properties of operations
Ready Math Lesson 7
Add Tens & Ones Using Base Ten Blocks
Adding Up on an Open Number Line
Subtraction by Counting Back and Using Addition
2.NBT.B.7 Add and subtract within 1000 using concrete models
Ready Math Lesson 7
2.NBT.B.7 Use place value to add within 100
Ready Math Lesson 7 & 13
2.NBT.B.5 Use place value understanding and properties of operations to add and subtract
Ready Math Lesson 8
Subtraction with Regrouping
2.NBT.B.5 Use place value understanding and properties of operations to add and subtract
Ready Math Lesson 8
MEASUREMENT AND DATA
A. Measure and estimate lengths in standard units.
B. Relate addition and subtraction to length.
C. Work with time and money.
D. Represent and interpret data.
GEOMETRY
A. Reason about shapes and their attributes.