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).

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B. Gain familiarity with factors and multiples.

Multiples

Factors

4.OA.B.4 Recognize that a whole number is a multiple of each of its factors.

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4.OA.B.4 Recognize that a whole number is a multiple of each of its factors.

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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

Multiply 2 digits by 2 digits Using an Area Model

Multiply Multi-Digit Numbers with an Area Model

4.NBT.B.4 Fluently add and subtract within 1,000,000.

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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.

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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.

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Multiplying Using Partial Products

Dividing Using an Area Model

Dividing with Partial Quotients and 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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4.NBT.B.6 Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors.

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4.NBT.B.6 Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors.

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NUMBER AND OPERATIONS- FRACTIONS

A. Extend understanding of fraction equivalence and comparison.

Equivalent Fractions with Multiplication

Equivalent Fractions with Division

4.NF.A.1 Explain why a fraction ๐‘Ž ๐‘ is equivalent to a fraction ๐‘Ž x ๐‘› ๐‘ x ๐‘› by using visual fraction models.

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4.NF.A.1 Explain why a fraction ๐‘Ž ๐‘ is equivalent to a fraction ๐‘Ž รท ๐‘› ๐‘ รท ๐‘› by using visual fraction models.

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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.

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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.