Academic Standard
Number and Operations
Initiative:
Tennessee Diploma Project
Set:
Mathematics
Type:
Standard
Code:
2
Grade range:
1
Conceptual StrandThe Number and Operations Standard describes deep and fundamental understanding of, and proficiency with, counting, numbers, and arithmetic, as well as an understanding of number systems and their structures.Guiding QuestionHow do students develop number sense that allows them to naturally decompose numbers, use particular numbers as referents, solve problems using the relationships among operations and knowledge about the base-ten system, estimate a reasonable result for a problem, and have a disposition to make sense of numbers, problems, and results?
Grade Level Expectation
Understand and use number notation and place value to 100.
Compare and order whole numbers to 100.
Develop strategies for learning basic addition facts and related subtraction facts.
Use multiple representations (including groups of ten) to model two-digit addition and subtraction.
Check For Understanding
Read and write numerals up to 100.
Write numbers up to 10 in words.
Count forward and backward by ones beginning with any number less than 100.
Skip count by twos, fives, and tens.
Order and compare (less than, greater than, or equal to) whole numbers to 100.
Recognize the place value of numbers (tens, ones).
Develop fluency with addition and subtraction facts of sums through ten.
Relate counting on and counting back to addition and subtraction and understand them as inverse operations.
Add three single-digit numbers.
Use models (such as discrete objects, connecting cubes, and number lines) to represent part-whole, adding to, taking away from, and comparing to situations to…
Recognize the part-whole relationship in representations of basic fractions such as and .
Use various models to develop strategies for solving arithmetic problems.
Solve problems that require addition and subtraction of numbers through 100.
Use composition and decomposition of numbers to identify and discuss patterns.
Represent whole numbers between 10 and 100 in groups of tens and ones.
Represent whole numbers up to 100 on a number line.
Use the number line to create visual representations of sequences (such as even numbers, tens, multiples of five).
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