1st Grade Math

Important Skills

Misconceptions

Counting to 20
Identifying to 20
One-to-one correspondence
3D Shape names
Number recognition up to 30 mastered (especially teens)
Value of a number
Number words to 10
Basic shapes
Compare a set of objects (more, less, same)
Recognition of add/subtract symbols
Counting by 1s and 10s to 100
Place value to 20
Fluency through 5
Number sense (seeing numbers)- relationships
Understand characteristics of shapes
Composition/Decomposition through 5
Shape words (recognizing the words)
Skip counting starting at a number other than 0
Counting on/down
Mixing up teens and decade numbers (13 vs. 30)
Place value- unitizing with sets of 10
More always means add
Tricks to count up (tapping nose with fingers)
Shapes are the same (regular shapes)
= only on the right side of the problems (ta-da here is the answer)

Skip counting starting at a number other than 0
Counting on/down
Mixing up teens and decade numbers (13 vs. 30)
Place value- unitizing with sets of 10
More always means add
Tricks to count up (tapping nose with fingers)
Shapes are the same (regular shapes)
= only on the right side of the problems (ta-da here is the answer)

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