• RS1 - 4.NBT.5   (Multiply up to a four-digit by a one-digit number and two two-digit numbers)
• Multiplication Mat
• RS2 - 4.NBT.6 (Divide up to a four-digit number by a one-digit number)
• Division Mat
  
• RS3 - 4.NF.2   (Compare two fractions with different numerators and different denominators)
• RS4 - 4.NF.3b   (Convert between improper fractions and mixed numbers)
• RS5 - 4.NF.3c   (Add and subtract mixed numbers with like denominators)
• RS6 - 4.NF.4b   (Multiply a whole number by a fraction)

Update:  Guided Practice for sessions 5 through 8 are now included. 

Please view the Standard-based Intervention Cycle Overview support video to see how Delta Math instructional resources follow evidence-based recommendations from the Institute of Education Sciences that include:

• Explicit instruction that is systematic
• Visual representations of mathematical ideas
• Progress monitoring
• Motivational strategies such as personal goal setting

We would like to offer special thanks to the support and feedback provided by consultants from the following agencies: