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 non-negative rational numbers.

Objective 1.04

Develop fluency with addition and subtraction of non-negative rational numbers with like denominators, including decimal fractions through hundredths.

  • Develop and analyze strategies for adding and subtracting numbers.
  • Estimate sums and differences.
  • Judge the reasonableness of solutions.

Resources aligned to this objective

Taxes
Students earn classroom dollars, set up a bank book, pay fines, figure interest and pay taxes.
Format: lesson plan (grade 4 Mathematics)
By Cecelia Zimerle.

Lesson plans on the web

A brownie bake
This lesson, one of a multi-part unit from Illuminations, focuses on student organization, preparation, and presentation of some simple foods as a way to apply various mathematical concepts, with problem-solving techniques being a central theme. (Learn more)
Format: lesson plan (grade 3–5 Mathematics)
Provider: National Council of Teachers of Mathematics
Eggsactly with eighteen eggs
In this lesson, one of a multi-part unit from Illuminations, students continue to examine fractions as part of a set. (Learn more)
Format: lesson plan (grade 3–5 Mathematics)
Provider: National Council of Teachers of Mathematics
Exploring the value of the whole
In this lesson, one of a multi-part unit from Illuminations, students consider the size or value of the same fraction when different “wholes” are compared. This lesson promotes problem-solving and reasoning as the students compare similar fractions. (Learn more)
Format: lesson plan (grade 3–5 Mathematics)
Provider: National Council of Teachers of Mathematics
Get the Picture--Get the Story
Students explore the connections between mathematics and football. (Learn more)
Format: lesson plan (grade K–5 Mathematics)
Provider: National Council of Teachers of Mathematics
Getting the Facts
Students participate in activities in which they focus on connections between mathematics and children's literature. (Learn more)
Format: lesson plan (grade 3–5 English Language Arts and Mathematics)
Provider: National Council of Teachers of Mathematics
Looking for calculator patterns
In this lesson, one of a multi-part unit from Illuminations, students use a Web-based calculator to create and compare counting patterns using the constant function feature of the calculator. (Learn more)
Format: lesson plan (grade 3–4 Mathematics)
Provider: National Council of Teachers of Mathematics
Making your own product game
In this lesson, one of a multi-part unit from Illuminations, students review strategies for playing the Product Game. (Learn more)
Format: lesson plan (grade 3–8 Mathematics)
Provider: National Council of Teachers of Mathematics
More fun with fraction strips
In this lesson, one of a multi-part unit from Illuminations, students work with fraction strips to compare and order fractions. (Learn more)
Format: lesson plan (grade 3–5 Mathematics)
Provider: National Council of Teachers of Mathematics
Post-Office Numbers
Students participate in activities in which they focus on the role of numbers and language in real-world situations. (Learn more)
Format: lesson plan (grade 4–5 Mathematics)
Provider: National Council of Teachers of Mathematics
Super Bowl scavenger hunt
In this lesson, one of a multi-part unit from Illuminations, students bring home an activity sheet designed to have families examine some enjoyable (and, sometimes, obscure) questions using mathematics during the Super Bowl game. (Learn more)
Format: lesson plan (grade 3–5 Mathematics)
Provider: National Council of Teachers of Mathematics