3rd grade math essentials
Learn essential third grade math skills—fractions, area, arithmetic, and so much more. This course is aligned with Common Core standards.
9 units86 videos6 hours
Learn it live with a class on Puzzicle · Teachers: use it with your class
Unit 1: Intro to multiplication
Multiplication as equal groups
Multiplication as groups of objects
Multiplication with arrays
Multiplication in contexts
Commutative property of multiplication
Unit 2: 1-digit multiplication
Unit 3: Intro to division
Division intro
Unit 4: Understand fractions
Fractions intro
Fractions in contexts
What fractions mean
Fractions on a number line
Unit 5: Equivalent fractions and comparing fractions
Comparing fractions
Unit 6: More with multiplication and division
Letters and symbols in multiplication and division
Multiplication and division word problems
Unit 7: Arithmetic patterns and problem solving
2-step expressions
Estimation word problems
One and two-step word problems
Patterns in arithmetic
Unit 8: Geometry
Count unit squares to find area
Area formula intuition
Multiply to find area
Area and the distributive property
Decomposing figures to find area
Perimeter
Quadrilaterals
Unit 9: Measurement
Telling time
Telling time with number line ✓ Check-ins6:44
Telling time to the nearest minute (labeled clock) ✓ Check-ins3:44
Telling time to the nearest minute (unlabeled clock) ✓ Check-ins3:19
Time differences example ✓ Check-ins4:20
Time word problem: travel time ✓ Check-ins4:09
Time word problem: puzzle ✓ Check-ins1:30
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.