8th grade math (NY Next Gen)
Learn eighth grade math—functions, linear equations, geometric transformations, and more. (aligned with New York Next Gen standards)
7 units181 videos14 hours
Learn it live with a class on Puzzicle · Teachers: use it with your class
Unit 1: Numbers and operations
Repeating decimals
Square roots & cube roots
Irrational numbers
Approximating irrational numbers
Exponents properties intro
Exponent properties (integer exponents)
Working with powers of 10
Scientific notation intro
Arithmetic with numbers in scientific notation
Unit 2: Solving equations with one unknown
Equations with variables on both sides
Equations with parentheses
Number of solutions to equations
Equations word problems
Unit 3: Linear equations and functions
Graphing proportional relationships
Rates & proportional relationships example ✓ Check-ins1:25
Rates & proportional relationships: gas mileage ✓ Check-ins3:19
Graphing proportional relationships: unit rate ✓ Check-ins4:31
Graphing proportional relationships from a table ✓ Check-ins1:12
Graphing proportional relationships from an equation ✓ Check-ins3:09
Solutions to linear equations
Intercepts
Slope
Intro to slope ✓ Check-ins6:56
Slope & direction of a line ✓ Check-ins2:35
Positive & negative slope ✓ Check-ins5:02
Worked example: slope from graph ✓ Check-ins4:40
Slope of a line: negative slope ✓ Check-ins4:00
Worked example: slope from two points ✓ Check-ins7:12
Slope from equation ✓ Check-ins6:19
Converting to slope-intercept form ✓ Check-ins5:07
Slope of a horizontal line ✓ Check-ins5:05
Proving slope is constant using similarity ✓ Check-ins7:56
Intro to slope-intercept form
Graphing slope-intercept form
Writing slope-intercept equations
Functions
Comparing linear functions
Comparing linear functions: equation vs. graph ✓ Check-ins2:23
Comparing linear functions: same rate of change ✓ Check-ins2:36
Comparing linear functions: faster rate of change ✓ Check-ins3:40
Comparing linear functions word problem: climb ✓ Check-ins4:44
Comparing linear functions word problem: walk ✓ Check-ins3:44
Comparing linear functions word problem: work ✓ Check-ins3:46
Constructing linear models for real-world relationships
Recognizing functions
Testing if a relationship is a function ✓ Check-ins2:23
Relations and functions ✓ Check-ins6:57
Recognizing functions from graph ✓ Check-ins4:07
Checking if a table represents a function ✓ Check-ins1:16
Recognizing functions from table ✓ Check-ins4:40
Checking if an equation represents a function ✓ Check-ins3:33
Does a vertical line represent a function? ✓ Check-ins1:40
Recognizing functions from verbal description ✓ Check-ins1:31
Recognizing functions from verbal description word problems ✓ Check-ins3:23
Unit 4: Systems of equations
Intro to systems of equations
Systems of equations with graphing
Systems of equations with substitution
Systems of equations with substitution: 2y=x+7 & x=y-4 ✓ Check-ins4:39
Systems of equations with substitution: y=4x-17.5 & y+2x=6.5 ✓ Check-ins4:06
Systems of equations with substitution: -3x-4y=-2 & y=2x-5 ✓ Check-ins4:21
Systems of equations with substitution: 9x+3y=15 & y-x=5 ✓ Check-ins6:04
Systems of equations with substitution: y=-5x+8 & 10x+2y=-2 ✓ Check-ins3:44
Systems of equations with substitution: y=-1/4x+100 & y=-1/4x+120 ✓ Check-ins3:44
Number of solutions to systems of equations
Systems of equations number of solutions: fruit prices (1 of 2) ✓ Check-ins9:25
Systems of equations number of solutions: fruit prices (2 of 2) ✓ Check-ins7:08
Number of solutions to a system of equations ✓ Check-ins3:26
Number of solutions to a system of equations graphically ✓ Check-ins6:36
Number of solutions to a system of equations algebraically ✓ Check-ins6:01
Systems of equations word problems
Age word problem: Imran ✓ Check-ins3:43
Age word problem: Ben & William ✓ Check-ins6:28
Age word problem: Arman & Diya ✓ Check-ins5:21
System of equations word problem: walk & ride ✓ Check-ins7:00
System of equations word problem: no solution ✓ Check-ins5:03
System of equations word problem: infinite solutions ✓ Check-ins5:01
Systems of equations with substitution: coins ✓ Check-ins5:58
Unit 5: Geometry
Angles between intersecting lines
Triangle angles
Pythagorean theorem
Pythagorean theorem application
Pythagorean theorem and distance between points
Pythagorean theorem proofs
Unit 6: Geometric transformations
Transformations intro
Translations
Reflections
Properties & definitions of transformations
Dilations
Unit 7: Data and modeling
Introduction to scatter plots
Interpreting scatter plots
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.
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