Students learn about matrix addition and subtraction, and scalar multiplication. The tutorial consists of class notes, examples, and practice problems. Review exercises and a chapter quiz are included.
This video demonstrates how to add video assets to your private library.
How many words can you make that end in -at? The possibilities are endless! In this video segment from Between the Lions, an animated stick figure sings about the joys of the "at" sound and different words that can be read "if you can read at." [0:44]
How many words can you make that end in -en? The possibilities are endless! In this video segment from Between the Lions, an animated stick figure dances and sings about the joys of the "en" sound and different words that can be read "if you can read en."
Learn about this common condition, how it's treated and how medical professionals decide whether a kid has ADHD. Be sure to click on the tabs to the right to get more information.
It all about money! Explore the concept of money in this real-world, unit plan. A collection of six lessons where students practice skills such as coin identification, mental math, menu math, making change, math operations with coins, and more. Thoroughly written, packed with engaging activities, and complete with printable worksheets. A Canadian money lesson that can be easily adapted for U.S. coins.
A guide to support parents as they work with their students in number pairs, addition and subtraction to 10.
A guide to support parents as they work with their students in sums and differences to 20.
Video demonstrations featuring a teacher and several students will show you how to add positive and negative numbers in order to simplify numerical expressions.
This lesson explains how to add and subtract matrices when it is possible to do so, noting matrix addition is commutative and associative. [2:59]
Add, subtract, and multiply matrices of appropriate dimensions.
A free CK-12 account is required to view all materials.
A list of suggested activities for addressing CCSS 2.OA.C.4 where students work with arrays and repeated addition. Includes a problem for a 3X5 array and its solution in a video. [8:23]
PBS offers a brief background on the Electronic Numerical Integrator and Computer (ENIAC), originally published by ScienCentral, Inc., and the American Institute of Physics.
Practice adding and subtracting within one hundred with these multiple-choice problems.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Practice adding and subtracting within one hundred with these multiple-choice problems.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
An extensive selection of teacher resources to aide in teaching and reviewing addition and subtraction of two and three digit numbers, inverse operations, counting on, and other mental strategies for addition and subtraction. Resources include worksheets, flash activities, powerpoint presentation, smartboard activities, and Word, Excel, and pdf files for the teacher's use.
Psychology is designed to meet scope and sequence requirements for the single-semester introduction to psychology course. The book offers a comprehensive treatment of core concepts, grounded in both classic studies and current and emerging research. The text also includes coverage of the DSM-5 in examinations of psychological disorders. Psychology incorporates discussions that reflect the diversity within the discipline, as well as the diversity of cultures and communities across the globe.Senior Contributing AuthorsRose M. Spielman, Formerly of Quinnipiac UniversityContributing AuthorsKathryn Dumper, Bainbridge State CollegeWilliam Jenkins, Mercer UniversityArlene Lacombe, Saint Joseph's UniversityMarilyn Lovett, Livingstone CollegeMarion Perlmutter, University of Michigan
By the end of this section, you will be able to:
Describe the nature and symptoms of attention deficit/hyperactivity disorder and autism spectrum disorder
Discuss the prevalence and factors that contribute to the development of these disorders
