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1.1 Place value blocks
免 04:201.2 Place value tables
免 00:001.3 Number and word form of a number
免 00:001.4 Going from word form to expanded form
免 00:001.5 Regrouping whole numbers
免 00:001.6 Rounding to the nearest 10
免 00:001.7 Rounding to the nearest 100
免 00:001.8 Examples rounding to the nearest 10 and 100
免 00:001.9 Breaking apart 3-digit addition problems
免 00:001.10 Addition using groups of 10 and 100
免 00:001.11 Subtraction by breaking apart
免 00:001.12 Methods for subracting 3 digit numbers
免 00:001.13 Adding three-digit numbers
免 00:001.14 Adding: why carrying works
免 00:001.15 Adding three digit numbers with regrouping
免 00:001.16 Subtracting: three digit numbers and basic regrouping
免 00:001.17 Subtracting: three digit numbers and regrouping
免 00:001.18 Subtracting: Regrouping from zero
免 00:001.19 Introduction to multiplication
免 00:001.20 Multiplication as repeated addition
免 00:001.21 Multiplication on the number line
免 00:001.22 Intro to multiplication
免 00:001.23 More on the concept of multiplication
免 00:001.24 Multiplication as groups of objects
免 00:001.25 Order when multiplying commutative property of multiplication
免 00:001.26 Associative property of multiplication
免 00:001.27 Order doesn_t matter when purely multiplying
免 00:001.28 Using the distributive property when multiplying
免 00:001.29 Properties and patterns for multiplication
免 00:001.30 Division as equal groupings
免 00:001.31 Visualizing division with arrays
免 00:001.32 Examples relating multiplication to division
免 00:001.33 Fraction basics
免 00:001.34 Cutting shapes into equal parts
免 00:001.35 Fractions in context
免 00:001.36 Numerator and denominator of a fraction
免 00:001.37 More than one equal section
免 00:001.38 Recognizing fractions greater than 1
免 00:001.39 Relating number lines to fraction bars
免 00:001.40 Fractions on a number line
免 00:001.41 Fractions on the number line widget
免 00:001.42 Finding 1 on the number line
免 00:001.43 Fractions greater than 1 on the number line
免 00:001.44 Different ways to represent 1 as a fraction
免 00:001.45 Relating fractions to 1
免 00:001.46 Whole numbers as fractions
免 00:001.47 Writing whole numbers as fractions
免 00:001.48 Comparing fractions with greater than and less than symbols
免 00:001.49 Comparing fractions visually and on number line
免 00:001.50 Comparing fractions with the same denominator
免 00:001.51 Comparing unit fractions
免 00:001.52 Comparing fractions with same numerator
免 00:001.53 Equivalent fractions with visuals
免 00:001.54 Equivalent fraction models
免 00:001.55 Equivalent fractions visually and on number line
免 00:001.56 Generating equivalent fractions
免 00:001.57 Introduction to types of quadrilaterals
免 00:001.58 Rectangle area as product of dimensions same as counting unit squares
免 00:001.59 Transitioning from counting to multiplying to find area
免 00:001.60 Rectangle area as product of dimensions same as counting unit squares
免 05:201.61 Finding missing side when given area
免 00:001.62 Introduction to perimeter
免 00:001.63 Perimeter of a shape
免 00:001.64 Finding perimeter when a side length is missing
免 00:001.65 Finding missing side length when given perimeter
免 00:00