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Number Sense and Numeration – includes solving problems with ratios, proportions, fraction-decimal relationships, exponents, number theory, place value, and the relationship between numbers.

Skills and Concepts                                                                                         

RIT scores between 151 and 160

Whole Numbers

bulletMatch sets of objects to numerals 0-40 to demonstrate an understanding of one-to-one correspondence
bulletIdentify and count numbers 0-20
bulletIdentify and order ordinal numbers (first to tenth)

Fractions

bulletIdentify equal parts of a region (halves, thirds, fourths)
bulletRepresent fractions by using models and drawings

Ordering, Equalities and Inequalities

bulletCompare and order numbers and sets of objects 0-10

New Vocabulary in this Range: how many

New Signs and Symbols: for answer

RIT scores between 161 and 170

Whole Numbers

bulletIdentify missing numbers in a series through 100
bulletIdentify the number that is “one more than”, “one less than”, “10 more than”, and “10 less than” a given number
bulletCount objects that are grouped into tens and ones

Fractions

bulletIdentify one-half of an object from a picture

Place Value

bulletIdentify and understand the place value and value of each digit in numbers through the hundreds

Ordering, Equalities and Inequalities

bulletOrder numbers 0-100

New Vocabulary in this Range: ones, tens, hundreds, thousands, numeral, ordinal numbers through eleventh, counting

New Signs and Symbols: none

 

RIT scores between 171 and 180

Whole Numbers

bulletCompare two or more sets of objects (up to ten objects in each group) and identify which set is equal to, more than, or less than the other
bulletCount and write by 10’s to 100
bulletCompare, group, and order whole numbers to 100 by using the symbols for “less than”, equal to”, and “greater than” (<, =, >)
bulletDistinguish between odd and even numbers
bulletCount by 2’s to 20

Fractions

bullet Identify one-half of an object or set
bulletIdentify fractional parts of a region or group

Place Value, Expanded and Standard Notation

bulletWrite numerals in expanded form through the thousands place

Ordering, Equalities and Inequalities

bulletUse > or < symbols to compare two numbers

New Vocabulary in this Range: even numbers, same as, fewest

New Signs and Symbols: < and > signs, = sign

 

RIT Scores between 181 and 190

Whole Numbers

bulletIdentify one more and one fewer
bulletCount and write by 2’s and 3’s
bulletComplete a number pattern
bulletRound 2- and 3-digit numbers to the nearest hundred and tens
bulletIdentify the value of Roman Numerals using I, V, and X
bulletApply rules of divisibility by 5
bulletIdentify the greatest common factor of two whole numbers each of which is less than 100
bulletList some common multiples of two whole numbers

Fractions

bulletSeparate regions into sub regions that are equivalent (halves, thirds, fourths)
bulletChange a fractional numeral to its simplest form (lowest terms)

Decimals

·        Identify the greater or lesser of two decimals

Place Value, Expanded and Standard Notation

bulletMatch number words to numerals to the ten thousands place
bulletIdentify and understand the place value and value of each digit in numbers through the hundred thousands
bulletAdd whole numbers using place value
bulletIdentify and understand place value for decimals (tenths, hundredths, and thousandths)

Ordering, Equalities and Inequalities

bulletOrder sets of objects 0-20
bulletIdentify the greater or lesser of two numerals
bulletOrder numerals through 999
bulletIdentify the numeral that comes before, between, or after any given numeral through 999
bulletCompare and order fractions*
bulletCompare and order decimals to the hundredths place

New Vocabulary in this Range: first, second, third, etc., odd, one-fourth, one-half, reduce, fractions, order, divisible, round, smallest, largest, lowest terms, greatest common factor, least common multiple, closest, units, set, digit, greater than, greatest

New Signs and Symbols: none

 

RIT Scores between 191 and 200

Whole Numbers

bulletOrder numerals through 9999
bulletCount and convert to dozens
bulletRound 4- and 5-digit numbers to the nearest hundred thousand, thousand, hundred or ten
bulletIdentify numbers as prime or composite
bulletApply rules of divisibility by 2’s
bulletComplete a factor tree for a number (prime factorization)*
bulletUnderstand and demonstrate that many whole numbers break down in different ways (e.g., 12 = 4 x 3 = 2 x 6 = 2 x 2 x 3)
bulletIdentify the least common multiple of two whole numbers*

Fractions, Ratio and Proportion

bulletWrite equivalent fractions using pictorial representation
bulletFind equivalent fractions using multiples and factors*
bulletWrite mixed numbers as improper fractions and improper fractions as mixed numbers*
bulletIdentify the least (lowest) common denominator of two fractions
bulletExpress a fraction as a decimal and vice versa
bulletSolve proportions using the cross product method*

Decimals

bulletWrite a decimal for a shaded region (to tenths place)
bulletIdentify and understand place value for decimals (tenths, hundredths, and thousandths)

Percents

bulletModel percents using a 10 x 10 grid
bulletWrite a decimal or fraction as a percent and vice versa

Place Value, Expanded and Standard Notation

bulletIdentify the number and written word for ordinal numbers
bulletWrite numerals in expanded form through the hundred thousands
bulletMatch word names to numerals through billions
bulletIdentify place value using model to count

·    Add whole numbers using place value

Ordering, Equalities and Inequalities

·        Identify and understand the greater or lesser of two numerals (use the symbols < and > through 999,999)

bulletCompare and order fractions and mixed numbers

Exponents

bulletExponential representation of 3 multiplied numbers (2x2x2)

New Vocabulary in this Range: thirds, fourths, rounded, thousands, exponential form, mixed number, improper fraction, lowest common denominator, percent, expanded form, prime, factor, proportion

New Signs and Symbols: use of dot as a multiplication symbol

RIT scores between 201 and 210

Whole Numbers

bulletRound to the nearest millions and billions
bulletApply rules of divisibility
bulletIdentify the greatest common factor of two whole numbers each of which is less than 100
bulletWrite the Roman numeral equivalent of Arabic numbers 1-2000 and vice versa

Fractions, Ratio and Proportion

bulletChange a fractional numeral to its simplest form (lowest terms)
bulletWrite the missing number in two equivalent ratios
bulletUse a number line to identify a fractional point

Decimals

bulletWrite a decimal for a shaded region (hundredths)
bulletWrite a terminating decimal as a fraction or mixed number
bulletRound decimals to nearest whole number, tenth, hundredth, or thousandth
bulletMultiply a decimal by multiples of 10, 100, or 1000

Percents

bulletFind a percent of a number
bulletWrite a decimal or fraction as a percent or vice versa

Place Value, Expanded and Standard Notation

bulletUnderstand and identify the place value and value of each digit in numerals through the billions
bulletWrite the word name for a decimal and vice versa
bulletWrite numerals in expanded form through the hundred billions

Ordering, Equalities and Inequalities

bullet Order numbers from least to greatest and greatest to least
bulletCompare and order numbers through the billions
bulletOrder decimals and fractions to the hundred thousandths
bulletIdentify the greater or lesser of 2 integers
bulletOrdering integers that include fractions and wholes
bulletTranslate verbal statements into equations (all four operations; several operations)
bulletOrdering exponential values

Exponents and Scientific Notation

bulletWrite whole number in exponential form and compute the power of a number

New Vocabulary in this Range: missing number, pentagon, simplest fraction, biggest, hundredths, one less, decimal numeral, squared, divisible, inequality, expanded numeral, equivalent, point, standard numeral, sequence

New Signs and Symbols: + used as positive symbol, - used as negative symbol  

RIT scores between 211 and 220

Whole Numbers

bulletUnderstand and use rules of divisibility
bulletIdentify the greatest common factor of two whole numbers: list the factors or prime factorization
bulletIdentify the greatest common factor and least common multiple of two whole numbers

Fractions, Ratio and Proportion

bulletWrite improper fractions from picture presentations
bulletChange a fractional numeral to its simplest form (lowest terms)

Decimals 

bullet  Round monetary amounts to the nearest single coin or bill which could be used to pay for a purchase up to and including $20.00
bulletWrite the decimal equivalent of a fraction and label as repeating or terminating

Percents

bulletExpress a fraction as a decimal and as a percent

Ordering, Equalities and Inequalities

bulletCompare and order fractions with the same denominator and with different denominators
bulletOrder decimals to thousandths; identify the greater or lesser of two decimals to thousandths

Exponents and Scientific Notation

bulletOrder of “powers”
bulletWrite a whole number or a decimal in scientific notation
bulletWrite a number expressed in scientific notation in standard form

New Vocabulary in this Range: counting number, portion, fractional part, lowest terms, reciprocal, order, scientific notation, prime factorization, not prime, factor tree, common multiples, greatest common denominator, equivalent, nearest dollar

New Signs and Symbols: square root symbol

RIT scores between 221 and 230

Fractions, Ratio and Proportion

bulletModel and write numerical fractions
bulletUnderstand the concept of ratio using concrete and pictorial models  
bulletIdentify the least common denominator for 3 or more fractions: list the multiples or prime factorization
bulletDetermine if a pair of ratios is equal or not equal using the equivalent fractions method
bulletWrite the missing number in 2 equivalent ratios
bulletSolve proportions using the cross product method

Decimals

bulletIdentify and order decimal and fractional coordinates on a number line

Percents

bulletWrite a ratio (fraction) as a percent and a percent as a ratio (fraction): denominators of 100

Integers

bulletUnderstand the meaning of integers

Place Value, Expanded and Standard Notation

bulletMatch word names to numerals to the hundred thousands in decimals

Ordering, Equalities and Inequalities

bulletOrder a set of integers from least to greatest

Exponents and Scientific Notation

bulletIdentify and use powers of 10

Square Roots

bulletEvaluate expressions using square roots

New Vocabulary in this Range: always true, proportion, multiply, between, tens digit, standard numeral, ratio

New Signs and Symbols: none

 

RIT scores between 231 and 240

Fractions, Ratio and Proportion

bulletDefine ratio
bulletWrite ratios in a variety of ways

Decimals

bulletWrite a decimal or mixed decimal for a fraction
bulletWrite a whole number or a decimal in scientific notation (negative exponents)

Place Value, Expanded and Standard Notation

bulletWrite numerals in expanded form through the billions
bulletUnderstand and identify place value and value of each digit in numerals through the hundred billions

Exponents and Scientific Notation

bullet Evaluate expressions using the order of operations that include exponents
bulletFind products by applying rules for exponents

Square Roots

bulletIdentify perfect squares in a list of numbers and calculate the positive square root of a perfect square

New Vocabulary in this Range: none

New Signs and Symbols: none

RIT scores between 241 and 250

Square Roots

bulletEvaluate expressions using square roots

New Vocabulary in this Range: Base ten, prime factors

New Signs and Symbols: none

RIT scores between 251 and 260

Exponents and Scientific Notation

bulletEvaluate powers with a negative exponent

New Vocabulary in this Range: none

New Signs and Symbols: none

RIT scores between 261 and 270

Percents

bulletChange a percent to a fraction (including mixed numbers)

Square Roots

bulletUnderstand properties of square roots

Irrational Numbers

bulletDefine irrational numbers

New Vocabulary in this Range: infinite non-repeating decimal

New Signs and Symbols: none

 

RIT scores between 271 and 280

Exponents and Scientific Notation

bulletEvaluate power of zero
bulletIdentify the lowest common multiple of numbers in their prime factored state

Set Notation

bulletUse inequalities to represent set notation

New Vocabulary in this Range: none

New Signs and Symbols: none

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