Common Core Learning Standards
GRADE K Mathematics
NUMBERS & OPERATIONS IN BASE TEN
Common Core Learning
Standards
Work with numbers 11-19 to gain
foundations for place value.
Concepts
Place Value
Embedded Skills
Write an equation (number sentence) to match a given
teen number from 11 to 19, using tens and ones.
Show the sum of a teen number from 11 to 19, using
drawings, objects,
K.NBT.1.
Compose and decompose numbers from 11 to
19 into ten ones and some further ones, e.g.,
by using objects or drawings, and record each
composition or decomposition by a drawing or
equation (such as 18 = 10 + 8); understand that
these numbers are composed of ten ones and
one, two, three, four, five, six, seven, eight, or
nine ones.
RIGOROUS SAMPLE TASKS
Number Bonds – recording each decomposition with an equation
See Mod. 5 – Lesson 20 5.E.9
See Mod. 5 – Lesson 21 5.E.17
See Mod. 5 – Lesson 21 5.E.19
Say and show how many tens and ones make up a teen
number from 11 to 19.
Read an equation (number sentence), using the term
‘plus’ for (+), ‘minus’ for (-) and ‘equals’ for (=)
Read and write numbers to 20
Vocabulary
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Altogether
Sum
Ten(s)
One(s)
Place value
Value
Put together
Take apart
Describe addition in terms of “putting together”
Describe and show a ten as 10 ones
SCAFFOLDED SAMPLE TASKS
Teacher prompts:
I Say and show how many tens and ones make up a teen number (11-19)
II Write a number sentence to show a teen number (11-19)
Example:
=
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Copyright (c) 2011 by Erie 1 BOCES- Deep Curriculum Alignment Project for Mathematics— Permission to use (not alter) and reproduce for educational purposes only.
Copyright (c) 2011 by Erie 1 BOCES- Deep Curriculum Alignment Project for Mathematics— Permission to use (not alter) and reproduce for educational purposes only.