4th grade math (NY Next Gen)
Learn fourth grade math—arithmetic, measurement, geometry, fractions, and more! This course is aligned with New York State Next Generation standards.
14 units184 videos13 hours
Learn it live with a class on Puzzicle · Teachers: use it with your class
Unit 1: Place value
Intro to place value
Writing whole numbers in expanded form
Writing whole numbers in written form
Regrouping whole numbers
How 10 relates to place value
Comparing multi-digit numbers
Unit 2: Addition, subtraction, and estimation
Rounding whole numbers
Adding multi-digit numbers
Using place value to add 3-digit numbers: part 1 ✓ Check-ins2:26
Using place value to add 3-digit numbers: part 2 ✓ Check-ins2:30
Adding 3-digit numbers ✓ Check-ins3:04
Relate place value to standard algorithm for multi-digit addition ✓ Check-ins6:22
Adding multi-digit numbers: 48,029+233,930 ✓ Check-ins2:18
Subtracting multi-digit numbers
Relate place value to standard algorithm for multi-digit subtraction ✓ Check-ins6:38
Subtracting 3-digit numbers (regrouping) ✓ Check-ins3:20
Worked example: Subtracting 3-digit numbers (regrouping) ✓ Check-ins2:47
Worked example: Subtracting 3-digit numbers (regrouping twice) ✓ Check-ins3:48
Worked example: Subtracting 3-digit numbers (regrouping from 0) ✓ Check-ins2:24
Multi-digit subtraction: 389,002-76,151 ✓ Check-ins3:21
Unit 3: Multiply by 1-digit numbers
Comparing with multiplication
Multiplication by 10s, 100s, and 1000s
Multi-digit multiplication: place value and area models
Estimate products
Unit 4: Multiply by 2-digit numbers
Multiply by 10s
Multiply 2-digit numbers with area models
Estimate products (2-digit numbers)
Multiply 2-digit numbers with partial products
Unit 5: Division
Remainders
Divide multiples of 10, 100, and 1,000 by 1-digit numbers
Division with place value
Division with area models
Estimate quotients
Multi-digit division with partial quotients
Multiplication, division word problems
Multi-step word problems
Unit 6: Factors, multiples and patterns
Factors and multiples
Prime and composite numbers
Unit 7: Equivalent fractions and comparing fractions
Equivalent fractions
Common denominators
Comparing fractions with unlike denominators visually
Comparing fractions with unlike denominators
Unit 8: Add and subtract fractions
Decomposing fractions
Adding and subtracting fractions with like denominators
Adding and subtracting fractions: word problems
Mixed numbers
Adding and subtracting mixed numbers
Adding and subtracting mixed numbers word problems
Fractions with denominators of 10 and 100
Line plots with fractions
Unit 9: Multiply fractions
Multiplying fractions and whole numbers visually
Multiplying whole numbers and fractions
Multiplying whole numbers and mixed numbers
Multiplying whole numbers and fractions word problems
Unit 10: Understand decimals
Decimal fractions
Decimal fractions greater than 1
Writing fractions as decimals
Decimals in word form
Decimals on the number line
Regrouping decimals
Writing decimals as fractions
Common fractions and decimals
Comparing decimals visually
Comparing decimals
Unit 11: Plane figures
Types of plane figures
Angle introduction
Parallel and perpendicular
Classifying triangles
Classifying geometric shapes
Line of symmetry
Unit 12: Measuring angles
Understanding angle measurement
Measuring angles
Decomposing angles
Unit 13: Area and perimeter
Unit 14: Units of measurement
Estimating mass
Estimating volume
Estimating length
Time
Converting units of mass
Converting units of volume
Converting units of length
Converting units of time
Money word problems
Learn this with a class
With a class on Puzzicle this course runs as a timetable of live study parties: your batch watches together and answers the check-ins, sometimes with a teacher leading.
Course content © Khan Academy, used under CC BY-NC-SA. See this course on Khan Academy.