## second grade how to videos

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## Cycle 1: first nine weeks

**Foundational Standards**

(1.NBT.2) Composing two-digit numbers - Link

(1.NBT.3) Comparing two-digit numbers using place value - Link

(1.NBT.4) Adding two-digit numbers by composing a ten - link

**Understanding Three-Digit Numbers**

(2.NBT.1) Count objects in groups of ten - Link

(2.NBT.1) Identify an equal number of ones, tens and hundreds - Link

(2.NBT.2) Counting objects by 5s, 10s, and 100s - Link

(2.NBT.2) Identify patterns when counting by 5s on a number line - Link

(2.NBT.2) Identify patterns when counting by 10s - Link

**Expressing and Comparing Three-Digit Numbers**

(2.NBT.3) Reading numbers - Link

(2.NBT.3) Writing numbers in expanded form - Link

(2.NBT.4) Compare two 3-digit numbers by comparing number parts - Link

(2.NBT.4) Compare numbers using a number line- Link

**Adding and Subtracting Within 100**

(2.OA.2) Add to making a ten - Link

(2.OA.2) Subtract by counting down to ten – Link

(2.OA.2) Subtract by counting up to ten – Link

(2.NBT.5) Subtract by using a hundreds chart - Link

(2.NBT.5) Add by using a number line - Link

(2.NBT.5) Subtract by using addition - Link

## Cycle 2: second nine weeks

__Exploring Standard Units of Length__(2.MD.1) Measure with non-standard objects - Link

(2.MD.1) Measure with inch length-units - Link

(2.MD.1) Choose the appropriate measurement tool - Link

(2.MD.2) Measure the same object with two units in the same system- Link

(2.MD.2) Compare a measurement in inches to one in centimeters - Link

**Addition and subtraction word problems**

(2.OA.1) Understand a word problem - link

(2.OA.1) Solve word problems by making a model - link

(2.OA.1) Solve two-step word problems - link

(2.OA.1) Solve two-step problems by making a model - link

**Relating Addition and Subtraction to Length**

(2.MD.5) Solve length word problems using color tiles – link

(2.MD.5) Solve length word problem using a ruler – link

(2.MD.5) Find unknowns by creating number bonds – link

(2.MD.6) Create a number line – link

(2.MD.6) Add two numbers using a number line – link

(2.MD.6) Subtract two numbers using a number line – link

**Telling Time**

(2.MD.7) Understand the passage of time in terms of units – link

(2.MD.7) Distinguish between a.m. and p.m. – link

(2.MD.7) Read and record digital time – link

(2.MD.7) Tell time using the hour hand – link

**Skip Counting**

(2.NBT.2) Use number patterns to count forwards and backwards – link

(2.NBT.2) Skip-count by 5s, 10s, and 100s – link

(2.NBT.2) Identify number patterns by skip-counting with base ten blocks – link

(2.NBT.2) This video practices counting by 5's - link

(2.NBT.2) Connect skip-counting to repeated addition using number patterns – link

(2.NBT.2) Use skip-counting to solve problems – link

**Money**

(2.MD.8) Solve money word problems using base ten blocks – link

(2.MD.8) Make change by adding up – link

## Cycle 3: third nine weeks

**Skip Counting**

(2.NBT.2) Use number patterns to count forwards and backwards – link

(2.NBT.2) Skip-count by 5s, 10s, and 100s – link

(2.NBT.2) Identify number patterns by skip-counting with base ten blocks – link

(2.NBT.2) This video practices counting by 5's - link

(2.NBT.2) Connect skip-counting to repeated addition using number patterns – link

(2.NBT.2) Use skip-counting to solve problems – link

**Add/Subtract**

(2.NBT.8) Add and subtract 100 from a number using place value – link

(2.NBT.8) Add using expanded notation – link

**Addition and Subtraction Word Problems**

(2.OA.1) Solve two-step problems by making a model – link

(2.OA.1) Solve two-step problems by writing an equation – link

**Measurement Data**

(2.MD.9) Find the length of an object using a ruler and rounding – link

(2.MD.9) Measure hand span lengths to gather data - link

(2.MD.9) Measure plant growth to gather data - link

(2.MD.10) Create a bar graph – link

(2.MD.10) Read a bar graph - link

(2.MD.10) Use a bar graph to solve put together problems – link

(2.MD.10) Use a bar graph to solve take apart problems – link

**Geometry**

(2.G.1) Identify triangles – link

(2.G.1) Identify quadrilaterals – link

(2.G.1) Identify pentagons – link

(2.G.1) Identify hexagons – link

(2.G.1) Identify cubes – link

(2.G.1) Draw shapes with a specified number of sides – link

(2.G.3) Partition a circle into equal shares – link

(2.G.3) Partition a circle into two, three, or four equal shares – link

(2.G.3) Partition rectangles into equal shares multiple ways - link

**Addition**

(2.NBT.6) Add two 2-digit numbers by making 10s – link

(2.NBT.6) Add three-2-digit numbers by decomposing – link

(2.NBT.6) Add up to four 2-digit numbers by making a ten – link

(2.NBT.6) Add up to four 2-digit numbers by using addition facts and friendly numbers – link

(2.NBT.6) Add up to four 2-digit numbers using place value – link

(2.NBT.6) Add up to four 2-digit numbers using the properties of addition – link

**Use Models to Add and Subtract**

(2.NBT.7) Add three-digit numbers with base ten blocks –link

(2.NBT.7) Subtract three-digit numbers with base ten blocks – link

(2.NBT.7) Subtract three-digit numbers with a number line – link

(2.NBT.7) Add three-digit numbers using expanded form – link

(2.NBT.7) Subtract three-digit numbers using expanded form - link

Explain an Addition and Subtraction Strategy

Explain an Addition and Subtraction Strategy

(2.NBT.9) Explain an addition number sentence – link

(2.NBT.9) Explain a subtraction number sentence – link

(2.NBT.9) Explain addition using place value – link

(2.NBT.9) Explain addition by decomposing numbers – link

(2.NBT.9) Explain subtraction using place value – link

(2.NBT.9) Explain subtraction by using knowledge of addition – link

## Cycle 4: Fourth nine weeks

**Understand Even and Odd Numbers**

(2.OA.3) Determine whether a group contains an even or odd number of objects by pairing –

__link__

(2.OA.3) Determine whether a group contains an even or odd number of objects by creating equal groups –

__link__

(2.OA.3) Determine whether a group contains an even or odd number of objects by looking at the digit in the one's place –

__link__

(2.OA.3) Write an equation to show an even number –

__link__

**Write equations that use addition to find the total number of objects in an array**

(2.OA.4) Understanding arrays –

__link__

(2.OA.4) Use repeated addition to find the total number of objects in an array –

__link__

(2.OA.4) Create arrays by modeling equal addends –

__link__

(2.OA.4) Read array by skip counting –

__link__

**Partition a rectangle into rows and columns of same-size squares**

(2.G.2) Partition a rectangle into rows –

__link__

(2.G.2) Partition a rectangle into columns –

__link__

(2.G.2) Find the number of same-size squares in a rectangle –

__link__

**Estimate Lengths in Inches, Feet, Centimeters, and Meters**

(2.MD.3) Understand estimation –

__link__

(2.MD.3) Decide if an estimate is reasonable –

__link__

(2.MD.3) Estimate length by creating a mental ruler –

__link__

**Measure Objects to Determine Differences in Lengths**

(2.MD.4) Find the difference in the length of two objects using addition –

__link__

(2.MD.4) Use everyday objects to determine the difference in the length of two objects –

__link__

(2.MD.4) Use subtraction of everyday objects to determine the difference in length of two objects –

__link__

**Add and Subtract within 100 to Solve Word Problems**

(2.OA.1) Understand a word problem –

__link__

(2.OA.1) Solve word problems by making a model –

__link__

(2.OA.1) Solve word problems by counting –

__link__

(2.OA.1) Solve word problems by making an easier problems –

__link__

(2.OA.1) Solve word problems by comparing –

__link__

(2.OA.1) Solve two-step word problems –

__link__

(2.OA.1) Solve two-step problems by making a model –

__link__

(2.OA.1) Solve two-step problems by writing an equation –

__link__

**Add and Subtract within 20**

(2.OA.2) Add and subtract on a number line –

__link__

(2.OA.2) Add and subtract using fact families –

__link__

(2.OA.2) Adding and subtracting using doubles facts –

__link__

(2.OA.2) Add by making a ten –

__link__

**Add and Subtract within 100**

(2.NBT.5) Decompose and compose numbers –

__link__

(2.NBT.5) Add by decomposing numbers –

__link__

(2.NBT.5) Add by using a hundred's chart –

__link__

(2.NBT.5) Subtract by using a hundred's chart –

__link__

(2.NBT.5) Add by using a number line –

__link__