Built on the standards you teach

Don't Be Late! follows the Common Core math standards for grades 1 to 8, the questions kids encounter in the game line up exactly with what they learn in your classroom.

Teacher smiling while writing addition problems on a whiteboard

Common Core Math Standards

1st Grade

Operations and Algebraic Thinking

Chapter 1: Addition and Subtraction Situations

  1. 1.1Addition: Add To
  2. 1.2Solve Add To Problems
  3. 1.3Solve Put Together Problems
  4. 1.4Solve Put Together Problems with Both Addends Unknown
  5. 1.5Solve Take From Problems
  6. 1.6Solve Compare Problems: More
  7. 1.7Solve Compare Problems: Fewer
  8. 1.8Solve Add To Problems with Change Unknown
  9. 1.9Connect Put Together and Take Apart Problems

Chapter 2: Fluency and Strategies within 10

  1. 2.1Add 0
  2. 2.2Subtract 0 and Subtract All
  3. 2.3Add and Subtract 1
  4. 2.4Add Doubles from 1 to 5
  5. 2.5Use Doubles
  6. 2.6Add in Any Order
  7. 2.7Count On to Add
  8. 2.8Count Back to Subtract
  9. 2.9Use Addition to Subtract

Chapter 3: More Addition and Subtraction Situations

  1. 3.1Solve Add To Problems with Start Unknown
  2. 3.2Solve Take From Problems with Change Unknown
  3. 3.3Solve Take From Problems with Start Unknown
  4. 3.4Compare Problems: Bigger Unknown
  5. 3.5Compare Problems: Smaller Unknown
  6. 3.6True or False Equations
  7. 3.7Find Numbers That Make 10
  8. 3.8Fact Families

Chapter 4: Add Numbers within 20

  1. 4.1Add Doubles from 6 to 10
  2. 4.2Use Doubles within 20
  3. 4.3Count On to Add within 20
  4. 4.4Add Three Numbers
  5. 4.5Add Three Numbers by Making a 10
  6. 4.6Add 9
  7. 4.7Make a 10 to Add
  8. 4.8Problem Solving: Addition within 20

Chapter 5: Subtract Numbers within 20

  1. 5.1Count Back to Subtract within 20
  2. 5.2Use Addition to Subtract within 20
  3. 5.3Subtract 9
  4. 5.4Get to 10 to Subtract
  5. 5.5More True or False Equations
  6. 5.6Make True Equations
  7. 5.7Problem Solving: Subtraction within 20
Number and Operations in Base Ten

Chapter 6: Count and Write Numbers to 120

  1. 6.1Count to 120 by Ones
  2. 6.2Count to 120 by Tens
  3. 6.3Compose Numbers 11 to 19
  4. 6.4Tens
  5. 6.5Tens and Ones
  6. 6.6Make Quick Sketches
  7. 6.7Understand Place Value
  8. 6.8Write Numbers in Different Ways
  9. 6.9Count and Write Numbers to 120

Chapter 7: Compare Two-Digit Numbers

  1. 7.1Compare Numbers 11 to 19
  2. 7.2Compare Numbers
  3. 7.3Compare Numbers Using Place Value
  4. 7.4Compare Numbers Using Symbols
  5. 7.5Compare Numbers Using a Number Line
  6. 7.61 More, 1 Less; 10 More, 10 Less

Chapter 8: Add and Subtract Tens

  1. 8.1Mental Math: 10 More
  2. 8.2Mental Math: 10 Less
  3. 8.3Add Tens
  4. 8.4Add Tens Using a Number Line
  5. 8.5Subtract Tens
  6. 8.6Subtract Tens Using a Number Line
  7. 8.7Use Addition to Subtract Tens
  8. 8.8Add Tens to a Number

Chapter 9: Add Two-Digit Numbers

  1. 9.1Add Tens and Ones
  2. 9.2Add Tens and Ones Using a Number Line
  3. 9.3Make a 10 to Add
  4. 9.4Add Two-Digit Numbers
  5. 9.5Practice Addition Strategies
  6. 9.6Problem Solving: Addition
Measurement and Data

Chapter 10: Measure and Compare Lengths

  1. 10.1Order Objects by Length
  2. 10.2Compare Lengths Indirectly
  3. 10.3Measure Lengths
  4. 10.4Measure More Lengths
  5. 10.5Solve Compare Problems Involving Length

Chapter 11: Represent and Interpret Data

  1. 11.1Sort and Organize Data
  2. 11.2Read and Interpret Picture Graphs
  3. 11.3Read and Interpret Bar Graphs
  4. 11.4Represent Data
  5. 11.5Solve Problems Involving Data

Chapter 12: Tell Time

  1. 12.1Tell Time to the Hour
  2. 12.2Tell Time to the Half Hour
  3. 12.3Tell Time to the Hour and Half Hour
  4. 12.4Tell Time Using Analog and Digital Clocks
Geometry

Chapter 13: Two- and Three-Dimensional Shapes

  1. 13.1Sort Two-Dimensional Shapes
  2. 13.2Describe Two-Dimensional Shapes
  3. 13.3Combine Two-Dimensional Shapes
  4. 13.4Create More Shapes
  5. 13.5Take Apart Two-Dimensional Shapes
  6. 13.6Sort Three-Dimensional Shapes
  7. 13.7Describe Three-Dimensional Shapes
  8. 13.8Combine Three-Dimensional Shapes
  9. 13.9Take Apart Three-Dimensional Shapes

Chapter 14: Equal Shares

  1. 14.1Equal Shares
  2. 14.2Partition Shapes into Halves
  3. 14.3Partition Shapes into Fourths