4th grade math videos

Operations and Algebraic Thinking

A. Use the four operations with whole numbers to solve problems.

Multiplication as a Comparison

4.OA.A.1

Interpret a multiplication equation as a comparison (e.g., interpret 35 = 5 x 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5).

Ready Math Lesson 5

B. Gain familiarity with factors and multiples.

Multiples

4.OA.B.4

Recognize that a whole number is a multiple of each of its factors.

Ready Math Lesson 7

Factors

4.OA.B.4

Recognize that a whole number is a multiple of each of its factors.

Ready Math Lesson 7

C. Generate and analyze patterns.

Number and Operations in Base Ten

A. Generalize place value understanding for multi-digit whole numbers.

B. Use place value understanding and properties of operations to perform multi-digit arithmetic.

Adding with Partial Sums

4.NBT.B.4

Fluently add and subtract within 1,000,000.

Ready Math Lesson 3

Multiply 2 digits by 2 digits Using an Area Model

4.NBT.B.5

Multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.

Ready Math Lesson 11

Multiply Multi-Digit Numbers with an Area Model

4.NBT.B.5

Multiply a whole number of up to four digits by a one-digit whole number, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.

Ready Math Lesson 11

Multiplying Using Partial Products

4.NBT.B.5

Multiply a whole number of up to four digits by a one-digit whole number and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.

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Dividing Using an Area Model

4.NBT.B.6

Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors.

Ready Math Lesson 12

Dividing with Partial Quotients and Partial Products

4.NBT.B.6

Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors.

Ready Math Lesson 12

Number and Operations- Fractions

A. Extend understanding of fraction equivalence and comparison.

Equivalent Fractions with Multiplication

4.NF.A.1

Explain why a fraction 𝑎 𝑏 is equivalent to a fraction 𝑎 x 𝑛 𝑏 x 𝑛 by using visual fraction models.

Ready Math Lesson 13

Equivalent Fractions with Division

4.NF.A.1

Explain why a fraction 𝑎 𝑏 is equivalent to a fraction 𝑎 ÷ 𝑛 𝑏 ÷ 𝑛 by using visual fraction models.

Ready Math Lesson 13

B. Build fractions from unit fractions by applying and extending previous understandings of operation on whole numbers.

Mixed Numbers

4.NF.B.3b

Decompose a fraction into a sum of fractions with the same denominator in more than one way.

Ready Math Lesson 17

C. Understand decimal notation for fractions and compare decimal fractions.

Measurement and Data

A. Estimate and solve problems involving measurement.

B. Represent and interpret data.

C. Geometric measurement, understand concepts of angle and measuring angles.

Geometry

A. Draw and identify lines and angles and classify shapes by properties of their line and angles.