The Intervention Table below provides links to interventions specific to this unit. The interventions support students and teachers in filling foundational gaps revealed as students work through the unit. All listed interventions are from New Zealand’s Numeracy Project.
Cluster of Standards 
Name of Intervention 
Snapshot of summary or Student I can statement. . . 
Materials Master 
Numbers and Operations in Base Ten Use place value understanding and properties of operations to add and subtract
MGSE2.NBT.5


Say the forward and backward number word sequence in the range 0100, starting and ending with any number. 


Develop an understanding of the quantity 100 and understand the relationship between 100 and 10 



Order numbers in the range 0–100 



Solve addition and subtraction problems with decade numbers by counting 


Operation in Algebraic Thinking Represent and solve problems involving addition and subtraction Add and subtract within 20
MGSE2.OA.1 MGSE2.OA.2

Adding and Subtracting with Counters

Solve addition problems to 20 by joining sets and counting all the objects. 

Solve subtraction problems from 20 by counting all the objects in their head. 



Solve addition and subtraction problems to 20 by counting all the objects in their head. 


Measurement and Data Work with time and money
MGSE2.MD.8


Say the forwards and backwards skip–counting sequences in the range 0–100 for twos, fives, and tens 
