**1. ****Counting Numbers**

**Description:** This video shows how to count numbers till 1000 by skip counting by 2s, 3s, 5s, 10s, 20s, 50s and 100s.

**Core Concepts:** II-A1 counting beyond 100: Counting backward and forward.

**2. Skip Counting by 5s, 10s, and 100s**

**Description:** This video shows how to skip count by 5s, 10s and 100.

**Core Concepts:** II-A1 counting beyond 100: Counting backward and forward.

**Link:** Video on skip counting by 5s, 10s, and 100s - 2nd grade math (2.NBT.2)

**3. Counting in 2s, 5s and 10s**

**Description:** This video shows how to skip count by 5s, 10s on a number line.

**Core Concepts:** II-A1 counting beyond 100: Counting backward and forward.

**4. What is Place Value? (Part 1)**

**Description:** This video shows how to represent 2-digit numbers using base ten blocks and on place value chart. It contains an explanation of what each digit in a number is worth, by where it is placed.

**Core Concepts:** II-A4 represent 3-digit whole numbers: Using base-ten blocks, using place value charts.

**5. Math Antics - Place Value**

**Description:** This video contains explanation of how the ten digits represent different amounts based on the number place (place value), and groups of ten (pattern of place value).

**Core Concepts:** II-B5 place value patterns.

**Link: **Unable to play the video

**6. Place Value - Using Hundreds, Tens, and Ones**

**Description:** This video shows how to represent 3-digit numbers using base-ten blocks and place value chart.

**Core Concepts:** II-B5 place value patterns.

**7. Comparing Large Numbers - Greater Than, Less Than, and Equal - 2nd Grade Math (2.NBT.4)**

**Description:** This video shows how to compare large numbers by comparing each place value starting from the leftmost digit.

**Core Concepts:** II-A5 comparing 3-digit whole numbers.

**Link: **Video on comparing large numbers - greater than, less than, and equal - 2nd grade math (2.NBT.4)

**8. Properties of Addition**

**Description:** This video contains an explanation of commutative and associative properties of addition.

**Core Concepts:** II-A8 properties of addition: Commutative and associative.

**9. What is a Benchmark?**

**Description:** This video shows how to use benchmarks to estimate sums.

**Core Concepts:** II-A9 addition strategies: Sums till 100.

**Links:**

**10. Using Doubles Facts to Add**

**Description:** This video shows how to use double facts to add.

**Core Concepts:** II-A9 addition strategies: Sums till 100.

**11. Make Ten Strategy**

**Description:** This video explains how to use ‘facts for 10’ strategy to add.

**Core Concepts:** II-A9 addition strategies: Sums till 100.

**12. Double-Digit Addition for Kids**

**Description:** This video shows how to add 2-digit numbers using digit placement.

**Core Concepts:** II-A9 addition strategies: Sums till 100.

**13. Use Doubles to Subtract**

**Description:** This video shows how to use doubles facts to subtract numbers from 2-digit numbers.

**Core Concepts:** II-A10 subtraction strategies: 1-digit numbers from 2-digit numbers and 2-digit numbers from 2-digit numbers.

**14. Using Bench Mark Numbers to Subtract**

**Description:** This video contains an explanation of benchmarks and how to use bench numbers to subtract numbers from 2-digit numbers.

**Core Concepts:** II-A10 subtraction strategies: 1-digit numbers from 2-digit numbers and 2-digit numbers from 2-digit numbers.

**Links:**

**15. Make a 10 to Subtract**

**Description:** This video shows how to use facts of 10 to subtract numbers from 2-digit numbers.

**Core Concepts:** II-A10 subtraction strategies: 1-digit numbers from 2-digit numbers and 2-digit numbers from 2-digit numbers.

**16. Double-Digit Subtraction for Kids**

**Description:** This video shows how to subtract 2-digit numbers using digit placement (tens and ones).

**Core Concepts:** II-A10 subtraction strategies: 1-digit numbers from 2-digit numbers and 2-digit numbers from 2-digit numbers.

**17. Addition and Subtraction Fact Families | Easy Teaching**

**Description:** This video explains how to use addition and subtraction fact family to solve addition and subtraction problems.

**Core Concepts:** II-A11 addition and subtraction facts: Represent addition and subtraction, fact, relation of addition and subtraction. II-B3 finding patterns using addition tables and II-B4 open sentences: Simple patterns in addition and subtraction.

**18. Even and Odd Numbers**

**Description:** This video explains even and odd numbers.

**Core Concepts:** II-B1 even & odd numbers: Even numbers as doubles.

**19. Patterns**

**Description:** This video explains repeating, growing and shrinking patterns.

**Core Concepts:** II- B2 compare number patterns.

**Link:** Video on patterns

**20. Units of Length - ****Centimeter**

**Description:** This video explains what centimeter is and how to measure lengths using centimeter.

**Core Concepts:** II-C1 measuring length: Measuring length using non-standard units, measuring length using meter and centimeter.

**21. Measuring Length in ****Centimeter**

**Description:** This video demonstrates measuring lengths of small objects using centimeter.

**Core Concepts:** II-C1 measuring Length: measuring length using non-standard units, measuring length using meter and centimeter.

**22. Units of Length - ****Meter**

**Description:** This video explains what meter is and demonstrates how to measure lengths using meter.

**Core Concepts:** II-C1 measuring length: measuring length using non-standard units, measuring length using meter and centimeter.

**23. Measuring Length in ****Meters**

**Description:** This video demonstrates measuring lengths of large objects using meter.

**Core Concepts:** II-C1 measuring length: measuring length using non-standard units, measuring length using meter and centimeter.

**24. Area and Perimeter**

**Description:** This video contains an explanation measuring area using both standard and non-standard units.

**Core Concepts:** II-C4 estimate and measure area: Comparing area directly & indirectly, measuring area using non-standard units, measuring perimeter in centimeter.

**25. 2D Shapes & Polygons**

**Description:** This video contains explanations on 2-D shapes and their attributes.

**Core Concepts:** II-D2 2D & 3D shapes: sorting, naming 2D and 3D shapes.

**26. Exploring 3D Shapes**

**Description:** This video contains explanations on 3-D shapes and their attributes.

**Core Concepts:** II-D2 2D & 3D shapes: Sorting, naming 2D and 3D shapes.

**27. Data Collection**

**Description:** This video contains an explanation on how to collect and organize data, interpret and create a pictograph, interpret and create bar graphs.

**Core Concepts:** II-E1 collect & organize data, II-E2 pictographs: interpret pictographs, create pictographs, II-E3 bar graphs: interpret and create bar graphs.

**Link:** Video on data collection

**28. Probability Language**

**Description:** This video contains an explanation on how to use probability language to describe probability of simple future events.

**Core Concepts:** II-E4 probability language: Likely and unlikely events conducting experiments.