LEARN NC

K–12 teaching and learning · from the UNC School of Education

Goal 1

Number and Operations - The learner will read, write, model, and compute with whole numbers through 999.

Objective 1.01

Develop number sense for whole numbers through 999.

  • Connect model, number word, and number using a variety of representations.
  • Read and write numbers.
  • Compare and order.
  • Rename.
  • Estimate.
  • Use a variety of models to build understanding of place value (ones, tens, hundreds).

Resources aligned to this objective

Resources on the web

Learning about number relationships and properties of numbers using calculators and hundred boards
Virtual hundred boards and calculators furnish a visual way of highlighting and displaying various patterns and relationships among numbers. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
It counts
Designed to help students understand and reinforce how numbers are assigned to objects, as well as think about more, less, or equal values. (Learn more)
Format: lesson plan (grade 1–2 Mathematics)
Provided by: American Association for the Advancement of Science
How Many Ways?
In this lesson, the second of a six-lesson unit from Illuminations, students estimate the value of collections of pennies, nickels, and dimes. They then determine the exact amount by exchanging sets of pennies or nickels for dimes. As an extension, they... (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by:
How Many More?
Students write subtraction problems, model them with sets of fish-shaped crackers, and communicate their findings in words and pictures. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
How Many More Fish? Looking Back and Moving Forward
Students use the mathematical knowledge and skills developed in the previous lessons as they play games involving comparative subtraction. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
How Many Left?
Students explore the familiar set model of subtraction. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
How Many Buttons?
Students review classification, make sets of a given number, explore relationships between numbers, and find numbers that are one more and one less than a given number. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Hopping on the Number Line
Students generate sums using the “number line” model. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Hopping Backward to Solve Problems
Students determine differences using the number line to compare lengths. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Hopping Backward on the Number Line
Students generate differences using the number line model. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Here's a Handful
Students construct sets of up to five items, write the numeral 5, identify sets of five, and record “5&rdquop; on a chart. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Food Pyramid Power: Looking Back and Moving Forward
Students display their knowledge of properties of objects for sorting and creating patterns. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Focus on Two
Students make groups of two, write the numeral 2, and record a group of two on a personal recording chart. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Finding the Balance
Students explore another model of subtraction, the balance. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Finding Sums to Six
Students discover the role of the additive identity and explore sums to six. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Finding Four
Students explore the number four. They make sets of four, write the numeral 4, and compare sets of four to sets of one, two, and three. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Finding Fact Families
Students explore the relation of addition to subtraction. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Finding Fact Families
The relationship of subtraction to addition is introduced with a book and with dominoes. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Finding Addition Patterns
Students explore commutativity and examine addition patterns. Then they record known facts on a personal addition chart. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Fact Family Fun
The relation of addition to subtraction is explored with fish-shaped crackers. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics