TeachersFirst's Numbers & Operations - Grades 9-12

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Explore this collection of resources for grades 9-12. Use these resources to meet the NCTM standards in the area of Numbers & Operations. Many of these tools are ideal for use on your interactive whiteboard or in your BYOD classroom. Find topics that relate to the content being taught in your classroom. Share these resources with students on your class website. Use these tools for remediation and review with all students. 

Explore the NCTM Standards for all Math Topics

Explore the NCTM Standards for Numbers & Operations for All Grades

Numbers & Operations Resources Grades K-2

Numbers & Operations Resources - Grades 3-5

Numbers & Operations Resources - Grades 6-8

Numbers & Operations Resources - Grades 9-12

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eMathHelp - eMathHelp

Grades
7 to 12
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eMathHelp offers help and resources for high school and college students. Select Math Notes to find over 2000 notes with explanations and examples for Pre-Algebra through Calculus 2....more
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eMathHelp offers help and resources for high school and college students. Select Math Notes to find over 2000 notes with explanations and examples for Pre-Algebra through Calculus 2. eMathHelp also offers a large variety of calculators in various subject areas featuring step-by-step answers. Browse through the Homework Help section to find answers to previously solved problems or post your own. Be aware, this site will point you in the right direction to finding answers, they don't just give answers!!
This site includes advertising.

tag(s): calculators (40), homework (33), tutorials (43)

In the Classroom

Take advantage of the many free calculators for use in your math class; display on your interactive whiteboard or with a projector as you work through problems and see how to solve them. Share a link to this site on your class website for students to use as a resource for homework help. Challenge cooperative learning groups to create math explanation videos using Powtoons, reviewed here, and share them on a site such as TeacherTube, reviewed here.

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Illustrated Mathematics Dictionary - MathIsFun

Grades
4 to 12
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This visual dictionary includes over 800 math definitions with almost 800 illustrations. Over 200 of the illustrations are animated examples of math terms and concepts. Use the keyword...more
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This visual dictionary includes over 800 math definitions with almost 800 illustrations. Over 200 of the illustrations are animated examples of math terms and concepts. Use the keyword search to find specific terms or browse by letters of the alphabet. Most definitions also include a link to related concepts and additional information.
This site includes advertising.

tag(s): dictionaries (50), vocabulary (231)

In the Classroom

Create a link on classroom computers for easy access to mathematics terms. Use this site as a model for students to set up their own math dictionary defining terms in their own words and images. Have students use Page Flip-Flap, reviewed here, to turn their Word documents, PDFs, and images into an online math dictionary with a page-turning effect!

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MathScienceMusic - Theolonius Monk Institute of Jaz

Grades
K to 12
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MathScienceMusic provides a large variety of free, engaging, resources to teach math, science, and music to students from kindergarten through college all created through a collaboration...more
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MathScienceMusic provides a large variety of free, engaging, resources to teach math, science, and music to students from kindergarten through college all created through a collaboration with Jazz legend, Herbie Hancock. Click letters on the homepage to begin your musical experience, then scroll down to view the available resources. Each group of resources includes a video introduction explaining the content. Some of the choices include Scratch Jazz (music and coding) and Groove Pizza (Shapes and Angles and Groove). All activities include a short description along with suggestions for appropriate grade level, concepts taught, and links to additional resources. The videos are hosted on YouTube. If your district blocks YouTube, then they may not be viewable.

tag(s): angles (56), animation (60), brain (51), coding (75), fractions (180), geometric shapes (135), india (26), multiples (21), music theory (35), musical instruments (37), musical notation (32), numbers (136), patterns (64), preK (231), ratios (53), sound (70)

In the Classroom

Share activities from MathScienceMusic on your interactive whiteboard with students, then let them explore independently. Scratch Jazz is perfect for teaching basic coding; students interested in music will enjoy creating their own jazz-themed project using the site's tutorial. Add interest to math lessons by taking advantage of the free lesson plans. Be sure to check out the link to Math and Music Standards found on the music and math curriculum page. Have students modify their learning by creating videos of their music creations using My Simpleshow, reviewed here, and share them on a site such as TeacherTube, reviewed here. Be sure to have them discuss their journey from the beginning through the final creation of their project. Team up with your school's music teacher to collaborate on the many activities provided on this site.
 This resource requires PDF reader software like Adobe Acrobat.

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The Global Virtual Stock Exchange - Stock-Trak

Grades
8 to 12
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Learn global economics with real world experience playing the stock exchange game. Register on the site to browse and find current games to join or create your own game. Game ...more
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Learn global economics with real world experience playing the stock exchange game. Register on the site to browse and find current games to join or create your own game. Game creators choose from many personalization options including type of currency, trading dates, countries to include, and much more. Additional teacher resources include allowing loan options, downloading of all transactions, and streaming ranks for student result comparisons.
This site includes advertising.

tag(s): competitions (9), currency (14), stock market (7)

In the Classroom

Use The Global Virtual Stock Exchange to teach economics in your classroom. Before setting up a competition, share the site with students and allow plenty of time to explore the many resources for learning about the stock market and participating in a game. Be sure to point out the Learning Center including many articles for beginners and stock tools. Set up a challenge with other classrooms or learning partners and compete against each other. Have cooperative learning groups create weekly podcasts discussing market trends and the latest economic news. Use a site such as podOmatic, reviewed here.

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Growth Mindset Archives - YouCubed at Stanford University

Grades
K to 12
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Growth Mindset Archives offers a selection of resources for teaching and developing a Growth Mindset in math. Resources include downloadable posters, videos, and inspirational messages....more
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Growth Mindset Archives offers a selection of resources for teaching and developing a Growth Mindset in math. Resources include downloadable posters, videos, and inspirational messages. Click on any title to view. If your district blocks YouTube, the videos may not be viewable.

tag(s): brain (51), learning styles (18), professional development (253)

In the Classroom

This site is perfect for teachers, families, and students who lack confidence in math. Use information from this site to help change negative mindsets and promote growth mindsets. Share resources on an interactive whiteboard or projector to demonstrate and teach students lessons on perseverance, grit, and more. Include activities as part of your professional development as you discuss math curriculum during staff meetings. Be sure to share ideas from this site with parents on your class website, include parents by sharing stories from your classroom as students work on developing their growth mindset.
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Investing for Beginners - Fidelity Investments

Grades
8 to 12
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Investing for Beginners is a YouTube playlist created by Fidelity Investments. The playlist includes 17 videos covering topics such as Investing for Beginners and How to Define Your...more
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Investing for Beginners is a YouTube playlist created by Fidelity Investments. The playlist includes 17 videos covering topics such as Investing for Beginners and How to Define Your Investing Personality. Videos all run less than five minutes in length, making them perfect for quick introductions to financial topics. If your district blocks YouTube, then they may not be viewable.
This site includes advertising.

tag(s): financial literacy (93), investing (5)

In the Classroom

Share videos with your students on an interactive whiteboard or projector. You may be interested in continuing the investment study by having students set up their own practice portfolio for a no-risk option to dabble in stock trading and buying. Use a program like Wall Street Survivor, reviewed here, to do this. Extend student learning by having cooperative learning groups research other aspects of economics or business, then challenge the groups to create videos using FlexClip, reviewed here, and share them on a site such as SchoolTube, reviewed here.

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ProfRobBob's YouTube Channel - Rob Tarrou

Grades
7 to 12
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This YouTube channel includes a growing selection of math instruction videos for Algebra through AP Statistics. Browse through videos on the home page or go to the site's playlists...more
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This YouTube channel includes a growing selection of math instruction videos for Algebra through AP Statistics. Browse through videos on the home page or go to the site's playlists for videos grouped by topic. If your district blocks YouTube, then they may not be viewable.
This site includes advertising.

tag(s): angles (56), area (53), charts and graphs (165), equations (125), factoring (27), functions (57), inequalities (23), polynomials (23), probability (101), problem solving (224), quadratics (26), statistics (112), video (245), volume (38)

In the Classroom

Share these videos on an interactive whiteboard or projector. FLIP your classroom and have students view the videos at home to discuss and apply the next day in class (this is an excellent option if your school blocks YouTube). Use the videos to introduce or practice any math topic and assign others from the series for homework. Be sure to provide this link on your class website for students (and their families) to access at home for additional math practice.

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Which One Doesn't Belong? - Mary Bourassa

Grades
5 to 12
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Which One Doesn't Belong provides stimulating and challenging math puzzles. Select a category to find puzzles related to numbers, shapes, and graphs. An additional link contains several...more
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Which One Doesn't Belong provides stimulating and challenging math puzzles. Select a category to find puzzles related to numbers, shapes, and graphs. An additional link contains several incomplete puzzles to finish. The site does not provide a "correct" answer. Each puzzle has multiple (possible) answers providing opportunities for all to choose and justify their response.

tag(s): critical thinking (102), logic (175), problem solving (224), puzzles (150)

In the Classroom

These puzzles are perfect for use with an interactive whiteboard or projector. Use the puzzles as a warm up for any math class or use for journal writing prompts. Use this site for discussion and debate with your gifted students. Challenge students to create puzzles and have classmates solve. Have cooperative learning groups create online books of their puzzles using a tool such as Bookemon, reviewed here. Have students create an annotated image including text boxes and related links using a tool such as Thinglink, reviewed here.

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The Three Acts of a Mathematical Story - Dan Meyer

Grades
7 to 12
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This blog details very specifically how to introduce and teach mathematical tasks through storytelling. Begin by choosing the first link that introduces the storytelling tasks through...more
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This blog details very specifically how to introduce and teach mathematical tasks through storytelling. Begin by choosing the first link that introduces the storytelling tasks through a "brief series" of video clips. On the landing page, click on the video to display the entire 36 minutes. Scroll to the bottom to find the series of clips. Follow the next link to find a Google document with many different tasks. Included in the document is information about the resource, standards addressed, and suggested task question. Click on the Task Title to view the problem.

tag(s): equations (125), geometric shapes (135), money (127), percent (59), perimeter (19), variables (15), volume (38)

In the Classroom

Work together with a colleague to learn more about the Three Acts Mathematical tasks strategy. Use tasks in your classroom for enrichment for gifted students, as extra credit, or as weekly homework. Have students make a multimedia presentation using one of the many TeachersFirst Edge tools, reviewed here, to share steps for the problem solving process.

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Universal - Free Algebra Equation Solver - Stanislav Kublanovsky and Yuri Matiasevich

Grades
6 to 12
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Download the Universal - Free Algebra Equation Solver software from this site. This is the only section of the site that is FREE. However, this tool alone makes the site ...more
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Download the Universal - Free Algebra Equation Solver software from this site. This is the only section of the site that is FREE. However, this tool alone makes the site fabulous! The Algebra Equation Solver solves and explains algebraic equations with step by step instructions. Verbal and written commentaries accompany each solution. Think of it as your free, at-home Algebra tutor! Large, colorful fonts and clearly expressed equations on a whiteboard view offer easy viewing options. Use the four toolbars, the menu bar at the top, and the status bar at the bottom to navigate any problem.
This site includes advertising.

tag(s): equations (125), exponents (37), logic (175), problem solving (224)

In the Classroom

Introduce this site on your interactive whiteboard or projector and use throughout the year to demonstrate and practice solutions to any Algebra problem. Be sure to include a link to this download on your class web page for students to use at home. Share with parents who are looking for tutoring or support for their student.

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Support for Problem Solving Pack - The School Mathematics Project

Grades
8 to 12
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The Support for Problem Solving Pack offers several tasks to support math problem-solving skills for high school students. Created as a tool to help develop mental flexibility, tasks...more
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The Support for Problem Solving Pack offers several tasks to support math problem-solving skills for high school students. Created as a tool to help develop mental flexibility, tasks vary in structure and style while requiring you to make use of realistic data. Each problem includes complete directions, possible solutions, and related questions. Some of the units of measure and spellings may differ from those in American English since this is a UK site.

tag(s): critical thinking (102), logic (175), problem solving (224)

In the Classroom

Use tasks from the packet throughout the school year to supplement your current materials. Assign as homework or use for math centers. If you are beginning the process of integrating technology, have students create blogs sharing their problem solving process and understanding using Telegra.ph, reviewed here. This blog creator requires no registration. Have students share the blog entry with a small group or partner, who is to ask for clarification where needed. Explaining their writing will help students internalize the problem-solving process. Challenge students to create their own problem-solving tasks to be solved by classmates.
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Better Lesson - BetterLesson

Grades
K to 12
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This site offers over 10,000 lessons aligned with the Common Core and the Next Generation Science Standards. The lessons were created by 130 Master Teachers. You can browse resources...more
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This site offers over 10,000 lessons aligned with the Common Core and the Next Generation Science Standards. The lessons were created by 130 Master Teachers. You can browse resources without registering. Click the blue "Browse" button to get started. Choose along the top from Common Core Math, Common Core ELA, or Next Generation Science. Lessons are arranged by grade level or Math, Language, and Science subjects. However, if you want to create your own resources, registration is required. After registering, create a class and then create a unit for that class. Finally, create a lesson for that unit, fill in an objective, select a state standard, and estimate the total time on task. Upload files (or drag and drop) to assign them to the lesson or keep them "unassigned" for later use. Additionally, simply add other users' files to your own curriculum. Search for files by keyword, age-level, and type of format. Click on a result to see every lesson plan using that file.

tag(s): commoncore (80), professional development (253), Teacher Utilities (115)

In the Classroom

Use this site to create lessons for students to follow. Use this site to share inspirational lessons you create or to find inspiration in the work of others. Meet the Common Core goals by using the tools and lesson plans offered at this website. Though the site deals with the technical aspect of lesson planning, many ideas exist to reverse engineer to your own lessons. Create a course to maintain and tweak your lessons for your classes. Expand PD to others in your school or in other schools to learn from the best ideas of others!

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The Math Dude: Quick and Dirty Tips - Jason Marshall, PhD

Grades
6 to 12
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Put math (and related science) fears behind you with podcasts with text transcripts from The Math Dude. The Math Dude makes complex math problems easy to decipher with his easy ...more
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Put math (and related science) fears behind you with podcasts with text transcripts from The Math Dude. The Math Dude makes complex math problems easy to decipher with his easy to follow explanations and tips. Listen to podcasts while viewing text explaining common math questions from basic algebra through SAT prep questions. Be sure to check out the "The Math Dude's Most Popular Tips" and "The Math Dude's Archives." Download podcasts as MP3 files and play through iTunes, QuickTime Player, and RealPlayer installed on a local computer. You can also simply play them from the site. Just be sure you click on the podcast play button and not one of the annoying videos or other ads! This site is loaded with advertisements. However, there is some great material underneath them all. NOTE: This site includes tools for blog users to interact with others. Any visitor can comment on the posts and podcasts or participate in Forums. There are also links to other tip blogs on the web page. Check your school policies on students posting comments, etc. to the web and whether they are permitted to do so anonymously and/or with name or initials.
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tag(s): measurement (137), operations (89), podcasts (60), problem solving (224)

In the Classroom

Check ahead of time to be sure this site is not blocked at school. If it is blocked, consider subscribing to the blog via iTunes to avoid all the ads. External speakers connected to the computer will help broadcast the sound throughout your classroom. Help students follow along by opening the podcast article (transcript) ad-free using the Readability Test Tool, reviewed here. Project the ad-free article as you play the podcast. Share the link on your class web page or select specific episodes links to offer support for concepts you are studying, such as absolute value or sine/cosine. Extend the concept of The Math Dude by having students write and produce their own math tip podcasts or English tip podcasts to explain the grammar demons that haunt their writing. Use a site such as Spreaker, reviewed here.

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Math Interactives - Utah Education Network

Grades
7 to 12
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Find great math resources on this free site on countless topics. Click each resource to find sites useful on individual computers or projected on a whiteboard screen. Be sure to ...more
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Find great math resources on this free site on countless topics. Click each resource to find sites useful on individual computers or projected on a whiteboard screen. Be sure to test out each interactive prior to using with a class, as some require Flash or other programs. Find great games about Numbers and Operations, Algebra, Geometry, Probability, and Money. Though these interactives are labeled for grades 7-12, several can be used by K-5 teachers i.e. the number line interactives. Be aware of the icons next to the resource for the required plug ins to use. Click on an activity and then explore the tabs above. Click the "Learner" tab to view information about the topic. Click "Help" for information on how to use the activity. Find resources in the "Instructor" tab. There is a wealth of material here, so be sure to check it out!

tag(s): data (133), money (127), numbers (136), probability (101)

In the Classroom

Use these resources for review and to reinforce concepts from class. Create teams of students who complete the activity taking turns on a whiteboard or with individual computers. Use the activity as a lead in to the topic of the day. Ask students what they notice about the activity and the general rules that they notice about the topic. Provide this link on your class website for students to use at home for extra practice, enrichment, or to try some new advanced topics.

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