Kindergarten Math (Oregon Math Standards)

Algebraic Reasoning: Operations (OA)

• K.OA.A.1 Show addition as putting together and subtraction as taking apart or away, with objects, drawings or equations.
• K.OA.A.2 Add and subtract within 10 and use these operations to solve everyday problems.
• K.OA.A.3 Break numbers up to 10 into two parts in several ways, shown with objects, drawings or equations.
• K.OA.A.4 For any number 1–9, find the amount that must be added to reach 10.
• K.OA.A.5 Add and subtract within 5 quickly and flexibly using accurate, efficient strategies.

Numeric Reasoning: Counting and Cardinality (NCC)

• K.NCC.A.1 Count aloud to 100 in ones and in tens.
• K.NCC.A.2 Count on from any given number up to 100.
• K.NCC.A.3 Name, write and count numbers 0–20 and write the numeral for a group of objects.
• K.NCC.B.4 Understand that numbers stand for amounts and link counting to how many objects there are.
• K.NCC.B.5 Count to answer "how many?" for up to 20 objects in different arrangements and count out a requested number.
• K.NCC.C.6 Decide whether one group has more, fewer or the same number of objects as another.
• K.NCC.C.7 Compare two written numerals between 1 and 10.

Numeric Reasoning: Base Ten Arithmetic (NBT)

• K.NBT.A.1 Split numbers 11–19 into a ten and some ones using objects, drawings or equations.

Geometric Reasoning and Measurement (GM)

• K.GM.A.1 Name shapes seen around them and describe where objects are in relation to each other.
• K.GM.A.2 Name common flat and solid shapes correctly whatever their size or which way they face.
• K.GM.A.3 Sort shapes into two-dimensional (flat) and three-dimensional (solid).
• K.GM.B.4 Compare flat and solid shapes of different sizes and orientations using everyday describing words.
• K.GM.B.5 Model real-world shapes by building them from parts and by drawing them.
• K.GM.B.6 Put simple shapes together to make larger shapes.
• K.GM.C.7 Describe several measurable features of one object, such as length or weight.
• K.GM.C.8 Compare two objects side by side on a shared measurable feature and say which has more or less.

Data Reasoning (DR)

• K.DR.A.1 Ask questions about the classroom that can be answered by sorting and counting data.
• K.DR.B.2 Count the objects in each group and interpret the results by ordering the groups by count.