CK-12 Foundation
Trigonometric Functions of Negative Angles
When is the trigonometric value of a negative angle the same as the positive angle? Pupils compare the values of trigonometric functions for different angles and their negatives. The interactive resource provides a visual display to make...
CK-12 Foundation
Geometric Sequences and Exponential Functions: Bouncing Ball
Explore a geometric sequence model through a simulation. Learners change the starting drop height of a ball and watch how the heights of following bounces change. They consider the ratio of the consecutive bounces as they analyze the...
Alabama Learning Exchange
The Path to Positive
Students demonstrate how to add positive integers. In this computation instructional activity, students read the book Less Than Zero and use a number line and counters to play an addition game using positive integers.
Curated OER
Arithmetic Operations With Numbers
In this arithmetic operations worksheet, 9th graders identify and solve 48 different problems that include applying Arithmetic operations with various types of numbers. First, they simplify each of the expressions using integer...
Curated OER
Adding Integers with Counters
Learners solve integers using addition. In this algebra lesson plan, students add integers using counters. They define and label patterns created by integer operations.
Curated OER
Adding and Subtracting Integers
Sixth graders create electronic manipulatives to model addition and subtraction of integers. They are introduced to the software Inspiration and use techniques such as selecting and deselecting an object, resizing an object, moving an...
Curated OER
Adding and Subtracting With Negative Numbers
Students solve equations with negative numbers. In this addition and subtraction instructional activity, students review how to add and subtract with positive and negative numbers on a number line. Students discuss the outcomes of adding...
Curated OER
Adding Integers
Students add integers using a number line. In this algebra lesson, students add one and two digit integers. They compare zero pairs and the addition of integers.
Curated OER
Additive Inverses
Students investigate properties of additive inverses. For this properties of additive inverses lesson, students discuss the what it means for two numbers to be opposites. Students discuss representing opposite numbers using a negative...
Willow Tree
Rational vs. Irrational Numbers
Build an understanding of rational numbers and their counterpart irrational numbers. Lead learners through an explanation of rational numbers and the ways they can be expressed. Then introduce them to irrational numbers and make...
Curated OER
Math: Am I Prime?
Seventh graders determine the difference between prime and composite numbers. On a Website, they discover a method to identify all the prime numbers up to 100 and also complete several online activities. Once they have discussed the...
Curated OER
Family Letter and Algebra
In this algebra worksheet, students receive a parent informational letter. The letter discusses what will be covered in algebra that school year and has an ordering integers activity.
Curated OER
Negative Magic Squares
Magic squares are interesting objects in both mathematics proper and in recreational mathematics. So they are objects that children should have heard about and experienced. The problems in this sequence give students the opportunity to...