LEARN NC

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

Goal 1

Number and Operations - The learner will read, write, and model whole numbers through 99 and compute with whole numbers.

Objective 1.01

Develop number sense for whole numbers through 99.

  • Connect the model, number word, and number using a variety of representations.
  • Use efficient strategies to count the number of objects in a set.
  • Read and write numbers.
  • Compare and order sets and numbers.
  • Build understanding of place value (ones, tens).
  • Estimate quantities fewer than or equal to 100.
  • Recognize equivalence in sets and numbers 1-99.

Resources aligned to this objective

Resources on the web

Count to 10: Looking Back and Moving Forward
The final segment of an eight-part unit titled “Count to 10.” Students review this unit by creating, decomposing, and comparing sets of zero to 10 objects and by writing the cardinal number for each set. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Comparison estimator
This activity allows the user to compare two quantities (which may be the number of objects in each of two sets, the lengths of two curves, or the area of two shapes) by estimating. (Learn more)
Format: activity/lesson plan (grade K–12 Mathematics)
Provided by: Shodor
Comparing Sets
Students write subtraction problems and model them with cubes. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Comparing Connecting Cubes: Looking Back and Moving Forward
Students use the mathematical knowledge and skills developed in the previous lessons to demonstrate understanding and the ability to apply that knowledge to playing subtraction games. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Comparing Columns on a Bar Graph
Students apply what they know about comparison subtraction by constructing bar graphs and using the graphs to answer questions. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Combining Foods
Students explore addition and comparison subtraction by modeling and recording related addition and subtraction facts for a given number. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Clipping coupons
Students calculate savings for different products when using coupons. (Learn more)
Format: lesson plan (grade K–5 Mathematics and Social Studies)
Provided by: National Council on Economic Education
Button Trains
Students describe order by using vocabulary such as before, after, and between. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of Ten
Students explore sets of up to 10 items and practice writing the numbers 0 through 10. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of Six
Students construct sets of six, compare them with sets of a size up to six objects, and write the numeral 6. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of Seven
Students construct and identify sets of seven objects. (Learn more)
Format: lesson plan (grade K–1 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of Nine
Students construct sets of up to nine items, write the numeral 9, and record nine on a chart. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of Eight
Students make and decompose sets of eight, write the numeral 8, and compare sets of up to eight objects. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of 19 and 20
Students count up to 20, construct and decompose sets up to 20, and record the decompositions. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of 17 and 18
Students construct sets up to 18, write the numerals 17 and 18, and model 17 and 18 with bean sticks, cubes, and ten frames. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of 15 and 16
Students explore the numbers 15 and 16. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of 13 and 14
Students construct and identify sets of 13 and size 14. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Sets of 11 and 12
Students use bean sticks, connecting cubes, and ten frames to construct sets of 11 and 12, and then record and compare them. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Numbers Up to 10
Students construct sets of numbers up to 10, write numerals up to 10, and count up to 10 rationally. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics
Building Numbers to Five
Students make groups of zero to 5 objects, connect number names to the groups, compose and decompose numbers, and use numerals to record the size of a group. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: National Council of Teachers of Mathematics