Sample Videos 
Combo Trains 1 Combo Trains 2 Combo Trains 3 
Key Stations 
We've identified 4 stations we suggest teachers use in response to student needs. Click HERE for details 
Indicators
*This is determined by organizing the sums into Numbers to 6, Numbers to 10, and Numbers to 20, and determining the instructional level within each range of numbers
Instructional
Level 
Meaning for this part of the Assessment


(1) Knows without counting for 3 (out of 3) equations, or (2) uses related combinations for 3 (out of 3) equations, or any mix of (1) and (2) for 3 (out of 3) equations.. 
P+ 
(1) Knows without counting for 2 (out of 3) equations, or (2) uses related combinations for 2 (out of 3) equations, or uses any mix of (1) and (2) for 2 (out of 3) equations 
Knows without counting for 1 (out of 3) equations, or uses related combinations for 1 (out of 3) equations.


P

Knows without counting, or uses a related combination, or counts on for 1 equations; may count all for 1 equation or make 1 error. 
Counts all 2 (out of 3 times), may have 1 error. 


Counts all 3 (out of 3) times, or makes 2 or 3 errors. 
Indicators simplified
See pages 114116 in Blue Book
Instructional
Level 
Meaning for this part of the Assessment


Knows total without counting or uses what is known about one combination to figure out all 3 of the combinations within the range being assessed. May have no errors. 
P+ 
Knows total without counting or uses what is known about one combination to figure out another combination for 2 of the 3 combinations within the range being assessed. May have no errors. 
Adds by counting on for 2 or more of the 3 combinations within the range being assessed. May count all once and may have 1 error.



Adds by counting all for 2 of the 3 combinations within the range being assessed. May have 1 error. 
Adds by counting all for all 3 combinations within the range assessed of makes 2 or 3 errors. 