Correlation Documents: CDT Scores and Study Island Topics by Grade Level

Score / Grade Level Reference / Numbers and Operations / Algebraic Concepts / Geometry / Measurement, Data, And Probability
200 - 400 / Grade 2 and Lower / The students’ CDT scores are broken out by the different Reporting Categories above. When you use the Interactive Reports, the eligible content will be no more than three grade levels below the current grade level of a student. However, the actual content is based on the score ranges to the right.
Once the students’ scores exceed 1285 the content level moves into Keystone Algebra I, Keystone Algebra II, and/or Keystone Geometry eligible content.
In the tables below are the Study Island topics for each of the grade levels that correspond to the Reporting Categories. Please note that as the grades progress, fractions move to ratios and proportions, and algebraic thinking moves to expressions and equations and later functions.
401 - 899 / Grade 3
900 - 990 / Grade 4
991 - 1050 / Grade 5
1051 - 1185 / Grade 6
1186 - 1250 / Grade 7
1251 - 1285 / Grade 8
Score / Grade Level Reference / Numbers and Operations
200 - 899 / Grade 3
  • Numbers and Operations in Base Ten
  • Numbers and Operations – Fractions
/ Rounding Numbers
Addition and Subtraction
Multiply by Multiples of 10
Order Whole Numbers
Fractional Parts of Objects
Fractions – Number Lines
Equivalent Fractions
Comparing Fractions
900 - 990 / Grade 4
  • Numbers and Operations in Base Ten
  • Numbers and Operations – Fractions
/ Place Value
Expanded Form
Compare Numbers
Round Numbers
Addition and Subtraction
Multiplication
Division
Equivalent Fractions
Compare Fractions
Adding and Subtracting Fractions
Multiplying Fractions
Convert Fractions and Decimals
Compare Decimals
991 - 1050 / Grade 5
  • Numbers and Operations in Base Ten
  • Numbers and Operations – Fractions
/ Powers of 10
Representations of Decimals
Comparing Decimals
Rounding Decimals
Multiply Whole Numbers
Divide Whole Numbers
Add and Subtract Decimals
Multiply and Divide Decimals
Add and Subtract Fractions
Division with Fractions
Multiplication with Fractions
1051 - 1185 / Grade 6
  • The Number System
  • Ratios and Proportional Relationships
/ Division of Fractions
Arithmetic with Decimals
Arithmetic with Whole Numbers
Number Theory
Negative and Positive Numbers
Number Lines
Coordinate Planes
Absolute Value
Ratios and Ratio Language
Unit Rates
Units of Measure
Percents
1186 - 1250 / Grade 7
  • The Number System
  • Ratios and Proportional Relationships
/ Properties of Addition and Subtraction
Single-Step Real World Problems
Unit Rates
Proportional Relationships
Percents
Ratios and Proportions
1251 - 1284 / Grade 8
  • The Number System
/ Real Numbers
Approximations of Irrational Numbers
Score / Grade Level Reference / Algebraic Concepts
200 - 899 / Grade 3
  • Operations and Algebraic Thinking
/ Multiplication and Division
Real World
Number Sentences
Properties of Multiplication and Division
Two-Step Problems
Patterns
900 - 990 / Grade 4
  • Operations and Algebraic Thinking
/ Number Sentences
Real World Problems
Number Sentences
Patterns
991 - 1050 / Grade 5
  • Operations and Algebraic Thinking
/ Numerical Expressions
Number Patterns
1051 - 1185 / Grade 6
  • Expressions and Equations
/ Evaluate Expressions
Write Expressions
Equivalent Expressions
Solve Equations and Inequalities
Symbolize Problem Situations
Number Sentences
Quantitative Relationships
1186 - 1250 / Grade 7
  • Expressions and Equations
/ Linear Expressions
Multi-Step Real World Problems
Percents
Symbolize and Solve Equations
1251 - 1284 / Grade 8
  • Expressions and Equations
  • Functions
/ Exponential Expressions
Square and Cube Roots
Scientific Notation
Proportional Relationships
Solve Linear Equations
Systems of Equations
Functions
Linear vs. Nonlinear Functions
Linear Relationships
Score / Grade Level Reference / Geometry
200 - 899 / Grade 3 / 2-Dimensional Shapes
Shape Partitions
900 - 990 / Grade 4 / Angles
Points, Lines, Rays, and Segments
Symmetry
991 - 1050 / Grade 5 / Coordinate System
2-Dimensional Figures
1051 - 1185 / Grade 6 / Area
Surface Area and Volume
1186 - 1250 / Grade 7 / Scale Drawings
Triangles
Three-Dimensional Figures
Angles
Circles
Area, Surface Area, and Volume
1251 - 1284 / Grade 8 / Object Transformations
Similarity and Congruence
Pythagorean Theorem
Volume
Score / Grade Level Reference / Measurement, Data, And Probability
200 - 899 / Grade 3
  • Measurement and Data
/ Time
Measure Volume and Mass
Measure Length
Money
Represent Data
Interpret Data
Area
Perimeter
900 - 990 / Grade 4
  • Measurement and Data
/ Units of Measurement
Measurement
Money
Time
Perimeter and Area
Time
Represent and Interpret Data
Angle Measurement
991 - 1050 / Grade 5
  • Measurement and Data
/ Units of Measure
Representing and Interpreting Data
Volume
1051 - 1185 / Grade 6
  • Statistics and Probability
/ Graphing and Interpreting Data
Statistical Analysis
1186 - 1250 / Grade 7
  • Statistics and Probability
/ Sampling Analysis
Comparing Statistics – Central Tendency and Variability
Probability
1251 - 1284 / Grade 8
  • Statistics and Probability
/ Scatter Plots
Best-Fit Linear Models
Two-Way Tables

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