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K - 6
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323 K-6 Skills
Each skill has a teaching video, over 500 practice problems, and printable worksheets.
Counting
6
Counting to Ten
Counting to Twenty
Counting Backwards
Number Words
Numbers up to 100
Counting By Two, Five, and Ten
Number Sense
28
Basic Comparison
Tens and Ones Places
Greater Than & Less Than
Ordering Numbers
Comparison and Ordering, to Two Hundred
Rounding to the Nearest Ten
Even and Odd Numbers
Place Value Through Hundreds
Comparing Numbers up to One Thousand
Counting By Twos, Fives and Tens
Patterns and Counting By Twos, Fives and Tens
Review Place Value Below One Thousand
Place Value Below Ten Thousand
Comparing Numbers Below Ten Thousand
Rounding
Rounding and Estimation
Place value through hundred thousands
Place value through hundred millions
Comparing whole numbers
Rounding whole numbers
Addition using commutative, associative, and zero properties
Estimation for addition
Estimation for subtraction
Comparing Negative Numbers
Probability
Place Value Through Billions
Place Value Through Thousandths
Rounding Whole Numbers
Addition
27
Adding Tens and Ones
Adding Below Six
Adding Below Ten
Adding With Zero
Addition By Counting
Doubling
Doubling Below Twenty
Basic Associative Property
Adding Below Twenty
Adding Three Numbers
Addition Below Fifty With Carrying
Addition Below One Hundred
Missing Addends
Rewriting Addition as Plus Ten
Adding Three Numbers
Two-Digit Addition
Two-Digit Addition With Carrying
Adding Tens
Rounding and Addition
Adding Three Two-Digit Numbers
Adding Hundreds
Adding Hundreds With Carrying
Addition Review
Addition and Inequalities
Properties of Addition
Addition Up To Ten Thousand
Adding Money
Subtraction
27
Subtraction Below Five
Subtraction Below Ten
Subtraction As Inverse of Addition
Subtracting Zero or All
Subtracting By Counting
Vertical Addition and Subtraction
Addition and Subtraction Below Fifty
Subtraction Below Twenty
Subtraction Below Fifty With Regrouping
Subtraction Below One Hundred
Relating Addition and Subtraction
Place Value and Regrouping
Subtracting Hundreds
Subtracting Hundreds With Regrouping
Subtracting With Regrouping And Zeroes
Subtraction Review and Vertical Form
Two-Digit Subtraction
Two-Digit Subtraction With Regrouping
Rounding and Subtraction
Checking Subtraction With Addition
Subtracting Tens
Two-Digit Addition and Subtraction Review
Subtraction Review
Subtraction Up To Ten Thousand
Subtracting Money
Subtract whole numbers
Subtract across zeroes
Time
18
Telling time I - hours
Telling time II - half hours
Elapsed time I - hours
Days of the week
Reading a calendar
Reading a calendar II
Using a schedule
Elapsed time II - hours and half hours
Months
Comparing units of time
Using a schedule II
Elapsed time III - quarter hours
Converting minutes and hours II
Elapsed time IV - 5 minute intervals
Elapsed time V - minute intervals
Converting minutes and hours II
Elapsed time IV - 5 minute intervals
Elapsed time V - minute intervals
Measurement
23
Introduction to weight
Customary weight - choose the best unit of measure
Customary weight - choose the best estimate
Metric weight - choose the best unit of measure
Metric weight - choose the best estimate
Customary distance - choose the best unit of measure
Customary distance - choose the best estimate
Metric distance - choose the best estimate
Metric distance - choose the best unit of measure
Customary capacity - choose the best estimate
Metric capacity - choose the best estimate
Temperature
Customary weight - choose the best unit of measure
Customary weight - choose the best estimate
Metric weight - choose the best unit of measure
Metric weight - choose the best estimate
Customary distance - choose the best unit of measure
Customary distance - choose the best estimate
Metric distance - choose the best estimate
Metric distance - choose the best unit of measure
Customary capacity - choose the best estimate
Metric capacity - choose the best estimate
Temperature
Geometry
36
Identify Solid Figures
Identify Shapes
Counting Sides and Vertices of Plane Shapes
Counting Vertices, Edges, Faces
Comparing Vertices, Edges, Faces
Plane Shapes and Solid Figures
Polygons
Perimeter of Squares
Perimeter of Shapes
Area of Squares
Area of Shapes
Triangles
Quadrilaterals
Solid Figures
Faces, Edges, Vertices
Identify Solid Figures
Polygon Review
Lines, Line Segments, Rays
Parallel, Perpendicular, Intersecting Lines
Angles
Triangles Review
Quadrilaterals Review
Circle Parts
Congruence
Angles Review
Estimating Angles
Parallel, Perpendicular, Intersecting Lines
Triangles Review
Triangle Angles
Quadrilateral Angles
Area of Triangles
Area of Parallelograms and Trapezoids
Volume of Cubes and Rectangular Prisms
Surface area of Cubes and Rectangular Prisms
Circumference of a Circle
Area of a Circle
Coins
8
Intro to Coins
Counting by Nickels and Dimes
Quarters and Equal Amounts
Nickels and Dimes
Counting Coins Including Quarters
Comparing Coins
Half Dollars and Dollars
Change
Multiplication
18
Basic Multiplication
Counting to Multiply
Multiplying By Two, Five, or Ten
Multiplication Word Problems
Multiplying By Two, Four, Five and Ten
Multiplying By Zero and One
Multiplying By Three and Nine
Multiplying By Six, Seven and Eight
Multiplication Practice
Properties of Multiplication
Using Multiplication To Divide
Multiplying By Two-Digit Numbers
Multiplying By Three-Digit Numbers
Multiplication Practice
Multiplication and division facts
Multiplication properties and division rules
Multiplication of 2-digit numbers by 1-digit numbers
Estimation using multiplication
Division
14
Basic Division
Counting Backwards to Divide
Remainders
Division Definitions
Dividing By Two, Five and Ten
Dividing By Three, Four and Nine
Dividing By Six, Seven and Eight
Dividing With One and Zero
Division
Dividing Two-Digit Numbers
Dividing Three-Digit Numbers
Division with remainders
Division with quotients with zeroes
Deciding where to place the first digit in division
Fractions
2
Introduction to Fractions
Fractions and Word Problems
Fractions And Decimals
6
Equivalent Fractions
Comparing Fractions
Adding Fractions
Subtracting Fractions
Tenths and Hundredths
Tenths, Hundredths, and Money
Fractions, Mixed Numbers, And Decimals
29
Fractional parts of a number
Equivalent Fractions
Simplest form
Comparing Fractions
Mixed Numbers
Add and Subtract Fractions
Fractions and decimals
Mixed Numbers and Decimals
Compare Decimals
Compare Decimals to Fractions
Round decimals
Add and Subtract Decimals
Mixed Numbers and Improper Fractions
Equivalent Fractions
Simplest Form
Comparing Fractions
Equivalent Fractions and Decimals
Comparing Decimals, Fractions, and Mixed Numbers
Equivalent Fractions
Ordering Fractions
Ordering Mixed Numbers
Equivalent Fractions and Decimals
Adding and Subtracting Fractions Review
Adding Mixed Numbers Review
Subtracting Mixed Numbers Review
Multiplying Fractions and Mixed Numbers Review
Dividing Fractions and Mixed Numbers Review
Adding and Subtracting Decimals Review
Multipling and Dividing Decimals Review
Algebra
22
Expressions using parentheses
Adding equals to both sides of an equation
Evaluating expressions with all four operations
Using variables and evaluating expressions using variables
Order of Operations
Expressions in Word Problems
Equations with variables
Distributive Property
Commutative Properties of Addition and Multiplication
Associative Properties of Addition and Multiplication
Identity Properties and Multiplication by Zero
Rounding Decimals
Estimating decimal addition and subtraction
Order of Operations Review
Properties Review
Algebraic Expressions
Simplifying Algebraic Expressions
Algebraic Formulas
Solving Addition and Subtraction Equations
Solving Multiplication and Division Equations
Ratios
Cross Products
Factoring And Multiples
14
Factoring
Multiples
Factoring review
Factors vs. Multiples
Basic Exponents
Prime Factorization and Exponents
Prime and composite numbers
Greatest Common Factors
Prime and Composite Numbers Review
Prime Factorization and Exponents Review
Greatest Common Factors Review
Greatest Common Factors of Three Numbers
Least Common Multiples
Least Common Multilpes of Three Numbers
Adding And Subtracting Fractions And Mixed Numbers
8
Adding and Subtracting Fractions with like Denominators
Adding and Subtracting Fractions with unlike Denominators
Adding Fractions with Sums Greater Than One
Adding Fractions and Mixed Numbers
Adding two mixed numbers
Subtracting Mixed Numbers from Integers
Subtracting mixed numbers with like denominators
Subtracing Mixed Numbers with Unlike Denominators
Multiplying And Dividing Fractions And Mixed Numbers
7
Multiplying Fractions
Multiplying With Mixed Numbers
Multiplying Two Mixed Numbers
Dividing Integers By Fractions
Dividing fractions by integers
Dividing fractions by fractions
Dividing fractions and mixed numbers
Decimal Operations
8
Adding and Subtracting Decimals
Multiplying Decimals By Integers
Multiplying Decimals By Decimals
Whole Numbers Dividing Into Decimals
Dividing Decimals by Whole Numbers
Dividing Whole Numbers By Decimals
Dividing Decimals By Decimals
Dividing With Powers Of Ten
Integers
6
Comparing Rational Numbers
Integers
Absolute Value and Adding Integers
Subtracting Integers
Multipling Integers
Dividing Integers
Percents
3
Percents
Percents and Decimals
Percents and Word Problems
Units
3
Unit Conversion With Metric Units
Unit Conversion With English Units
Unit Conversion Between Metric and English
Probability
2
Mean, Median and Mode Reviews
Probability
Other
6
Squares
Powers of Ten
Unit Conversion
Metric Unit Conversion
Two Digit Divisors
Mean, Median and Mode
Adaptive Learning
Pick a skill
75
Estimating decimal addition and subtraction
Change lesson
323
Estimate the difference by rounding each number to the nearest whole. Give your answer as a whole number.
9.343 - 8.864 ≈
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Worksheet
75 skills in 1st grade
Each skill has a teaching video, over 500 practice problems, and printable worksheets.
Counting
6
Counting to ten
Counting to twenty
Number Sense
4
Counting to ten
Counting to twenty
Addition
12
Counting to ten
Counting to twenty
Subtraction
7
Counting to ten
Counting to twenty
Multiplication
7
Counting to ten
Counting to twenty
Measurement
7
Counting to ten
Counting to twenty
Coins
7
Counting to ten
Counting to twenty
Shapes
7
Counting to ten
Counting to twenty
Division
7
Counting to ten
Counting to twenty
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