Illustrative Mathematics
Converting Decimal Representations of Rational Numbers to Fraction Representations
A rational number is a ratio of two integers. Discuss with your class how to convert the rational numbers of repeating decimals to fractions. A good commentary on letting x equal the repeating decimal and multiplying each side of...
Illustrative Mathematics
Equivalent Expressions?
Pre-algebra pupils need to understand that two expressions are only equal if they have the same value. Show them that once the expression is multiplied by a number, the value of the expression changes. It makes for a good lead-in to...
Illustrative Mathematics
Reasoning about Multiplication
In critiquing someone else's theory, learners share insight into their own understanding of mathematical concepts. Fifth graders will explore the notion that products are always larger than their factors. While this statement is...
5280 Math
Capture the Points
Play a game of capture the points. Young scholars receive a number line with specific points graphed and must write an inequality that captures all the points. The second task of the algebra project is to write an inequality with...
Illustrative Mathematics
Watch out for Parentheses
It is important for the algebra learner to understand the use of parentheses. Mathematicians of all levels can make errors with nested parentheses. This will give them some practice. It makes for a good class starter or quick assessment.
Learning Wave Communications
Learning Wave: Multiplying Integers
Using examples in football and golf, the rules of multiplying integers is demonstrated. Includes a link to an interactive example problem.
The Math League
The Math League: Integers
This site provides a detailed overview of integers, including positive and negative integers, number lines, absolute values of integers, and comparing integers.
Other
Operations on Integers
MATHguide includes rules for addition/subtraction of integers and multiplication/division of integers in this descriptive lesson on integers.
Mr. Martini's Classroom
Mr. Martini's Classroom: Number Line With Negative Integers
Students identify, compare, add, subtract, and multiply integers using a number line.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Integers
Twenty-five problems presented on integer topics: integer operations, integer place value, evaluate expressions and equations with integers. They are given with each step to the solution cleverly revealed one at a time. You can work each...
Lawrence Hall of Science
The Math Page: Skill in Algebra: Multiplying and Dividing Signed Numbers
Here is a site that clearly and thoroughly explains multiplying and dividing signed numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who...
Texas Instruments
Texas Instruments: Multiplication of Integers
Students use StudyCards(tm) to practice completing multiplication equations that include positive and negative integers.
Other
Numberpower: Integers
Numberpower answers "What are integers?", "What is a positive integer?", and "What is a negative integer?". You will also find integer multiplication, integer addition, and integer subtraction rules, with examples.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Multiplication Cards
Students multiply positive and negative numbers on these interactive flashcards. The problem changes color when the correct product is typed.
Texas Instruments
Texas Instruments: Gaining or Loosing Yards in Football
This activity will allow students to use the football field as an interactive model for adding, subtracting, multiplying and dividing integers. Many students are familiar with the gain or lost of yards in the game of football, however...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Multiply and Divide With Negatives
Find a quick, concise explanation of how to multiply and divide with negative numbers. An example is given and clearly explained for each.
Math Is Fun
Math Is Fun: Multiplying Negatives
The tutorial examines how to multiply negative numbers. The resource consists of detailed examples and explanations.
Wyzant
Wyzant: Multiplication Practice Worksheet
Simple multiplication problems are provided from WyzAnt for students in this interactive, twenty-question quiz. Students enter their answers and then have the site correct them. Questions contain either two or three terms each and...
Lesson Tutor
Lesson Tutor: A Beginning Look at Basic Algebra
Twelve lessons are provided as an introduction to basic algebra. Each covers the topic clearly, providing examples with explanations as well as practice problems and their solutions for the user. Topics highlighted here include: solving...