Illustrative Mathematics
Illustrative Mathematics: 7.ns Comparing Freezing Points
In this lesson plan, 7th graders compare freezing points by adding and subtracting rational numbers.
Illustrative Mathematics
Illustrative Mathematics: 7.ns Differences and Distances
In this lesson plan, 7th graders explore the differences and distances using a number line and adding and subtracting rational numbers.
Illustrative Mathematics
Illustrative Mathematics: 7.ns Distances Between Houses
In this lesson plan, 7th graders determine the distance between houses by adding and subtracting rational numbers.
Illustrative Mathematics
Illustrative Mathematics: 7.ns Rounding and Subtracting
This lesson plan has students subtract and round rational numbers.
Illustrative Mathematics
Illustrative Mathematics: 5.nf Fundraising
This task asks students to multiply rational numbers. Aligns with 5.NF.B.5.
Mangahigh
Mangahigh: Number: Multiply and Divide by a Number Between 0 and 1
This site provides students practice with the concept of multiplying rational numbers . Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
Doina Popovici
Math Play: Changing Fractions and Decimals to Percents
This Millionaire Game challenges students to convert fractions and decimals to percents. Students will use decimal notation with denominators of 10 and 100 and convert rational numbers to decimals using long division.
Common Core Sheets
Common Core Sheets: The Number System 7.ns.2c Worksheets
Print or create worksheets or flashcards to assess students' understanding of multiplication of rational numbers with Commutative Property.
Common Core Sheets
Common Core Sheets: The Number System 7.ns.3 Worksheets
Print or create worksheets or flashcards to assess students' understanding of operations to add, subtract, multiply, and divide rational numbers.
Better Lesson
Better Lesson: Assessment Day
SWBAT use strategies to identify rational numbers on a number line.
Curated OER
Lesson Plan: What Is It? Rational Numbers
This site is a great place for lesson information on the concept of rational numbers. Three other tabs are available besides the-What Is It? tab. They are: Tips and Tricks, When Students Ask, and Lesson Ideas. Each tab has just the right...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Irrational Numbers; Rational Square Roots
Dr. Math responds to how one can tell whether a number is rational or irrational. A proof is discussed in the response.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Number Systems
Find a quick, concise explanation of Real Numbers. Other number systems are also defined such as: Natural, Integer, Rational, Irrational and Complex Numbers.
Lawrence Hall of Science
The Math Page: Topics in Precalculus
Designed to help high school students to learn precalculus, topics include the formal rules of algebra, rational and irrational numbers and mathematical induction.
Texas Instruments
Texas Instruments: Rational Match
Students use the Rational Number Rampage application to play a game to find numbers that are equivalent fractions, decimals, and percents.
TED Talks
Ted: Ted Ed: A Brief History of Numerical Systems
1, 2, 3, 4, 5, 6, 7, 8, 9 and 0. With just these ten symbols, we can write any rational number imaginable. But why these particular symbols? Why ten of them? And why do we arrange them the way we do? Alessandra King gives a brief history...
Texas Instruments
Texas Instruments: Rational Timer
Students use the calculator to play a game that requires them to convert numbers to fractions, decimals, or percent quickly and accurately.
Khan Academy
Khan Academy: Rational Number Word Problems
Practice solving multi-step word problems. The numbers in these problems may be fractions, decimals, and percents. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Common Core Sheets
Common Core Sheets: The Number System 7.ns.1a Worksheets
Create a worksheet to assess students understanding of adding and subtracting with negative and positive numbers.
Curated OER
Math Words: Rational Numbers
Mathwords provides a brief description with an easy to read chart that includes all types of real numbers.
CK-12 Foundation
Ck 12: Arithmetic: Sums of Integers on a Number Line
[Free Registration/Login may be required to access all resource tools.] In this lesson students find sums of integers by using a number line. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Arithmetic: Sums of Integers on a Number Line
[Free Registration/Login may be required to access all resource tools.] In this lesson students find sums of integers by using a number line. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Scholastic
Scholastic: Study Jams! Math: Numbers: Integers
This site provides great practice on the concept of integers. Students can first learn about the topic by watching a step by step instruction video that also points out areas of concern. Finally, students can practice their knowledge by...
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