Embedded Files
Illuminations
http://illuminations.nctm.org/
- Adjustable Spinner Use this tool to create a spinner to examine experimental and theoretical outcomes.
- Geometric Solids This tool allows you to manipulate various geometric solids and investigate their properties.
- Factor Game The Factor Game engages students in a friendly contest in which winning strategies involve distinguishing between numbers with many factors and numbers with few factors. Students are then guided through an analysis of game strategies and introduced to the definitions of prime and composite numbers.
- Fraction Game This applet allows students to individually practice working with relationships among fractions and ways of combining fractions.
- Product Game This applet is the Product Game: a fun, interactive game that exercises your skill with factors and multiples.
- Pan Balance - Numbers Use this tool to strengthen understanding and computation of numerical expressions and equality using a balance scale.
- Pan Balance - Shapes Use this tool to build up to algebraic thinking by exploring how to balance shapes of unknown weight.
- Pan Balance - Expressions Using this interactive tool, you can practice arithmetic and algebraic skills, and investigate the important concept of equivalence.
- Line of Best Fit Use this activity to practice how to enter a set of data, plot the data on a coordinate grid, and determine the equation for a line of best fit.
Brilliant
Challenge top students with adaptive math and physics problems.
CK-12: Geometry
http://www.ck12.orgShape up your kids' skills with a variety of content-rich resources.
TenMarks
Untangle robust math problems for all ages; plenty of teaching support.
NRICH aims to:
- Enrich the experience of the mathematics curriculum for all learners
- Offer challenging and engaging activities
- Develop mathematical thinking and problem-solving skills
- Show rich mathematics in meaningful contexts
For teachers of mathematics, we offer FREE enrichment material (Problems, Articles and Games) for all ages that really can help to inspire and engage learners and embed RICH tasks into everyday practice.
Desmos
Are you a math teacher? Check out our classroom activities at teacher.desmos.com.
Motivate Maths
Flip Books
These resources were developed by the Kansas Association of Teachers of Mathematics (KATM) and make links between the mathematical practices and the content of the Kansas Common Core Standards. They include instructional strategies and examples for each standard at each grade level.
engageNY
Common Core Standards, curriculum and instructional resources, bilingual resources, performance tasks and assessment guidelines and materials developed by NYSED and our partners
Algebraic Thinking
A consortium of four universities working to improve students’ success in algebra.
TI Math Nspired
TI Math Nspired is a site with lessons and tools to help you guide your students to understanding key math concepts with the power of TI-Nspire™ technology.
App TI-Nspire CAS
Core Math Tools
Core Math Tools is a downloadable suite of interactive software tools for algebra and functions, geometry and trigonometry, and statistics and probability. The tools are appropriate for use with any high school mathematics curriculum and compatible with the Common Core State Standards for Mathematics in terms of content and mathematical practices. Java required.
Interactives
Use this activity to practice how to enter a set of data, plot the data on a coordinate grid, and determine the equation for a line of best fit.
Exercise your factoring ability against a human or the computer.
This applet allows students to individually practice working with relationships among fractions and ways of combining fractions.
This applet is the Product Game: a fun, interactive game that exercises your skill with factors and multiples.
Use this tool to strengthen understanding and computation of numerical expressions and equality. In understanding equality, one of the first things students must realize is that equality is a relationship, not an operation. Many students view "=" as "find the answer." For these students, it is difficult to understand equations such as 11 = 4 + 7 or 3 × 5 = 17 – 2.
Build up to algebraic thinking by exploring this balance tool using shapes of unknown weight. Challenge yourself to find the weight of each shape in one of six built-in sets or a random set.
This interactive pan balance allows numeric or algebraic expressions to be entered and compared. You can "weigh" the expressions you want to compare by entering them on either side of the balance. Using this interactive tool, you can practice arithmetic and algebraic skills, and investigate the important concept of equivalence.
The rules of Krypto are simple: Combine five number cards using the four arithmetic operations (+, –, ×, ÷) to arrive at a "target" number. This online version of Primary Krypto uses the numbers 1–10 only.
Help Okta reach the target by choosing a path from the top of the maze to the bottom. Seven levels with seven puzzles will test your skills with powers of ten, negative numbers, fractions, decimals, and more. How many starfish can you earn?
Okta challenges you to a duel! That crazy octopus wants to play you in a game where the first person to choose cards with a specified sum wins. You can choose how many cards, what types of numbers, and Okta's level of strategy.
Watch Know Learn
To provide a world-class, online domain on which educators can store, categorize, and rate the best, K – 12 educational videos on the Internet today. And to make this service FREE so teachers, parents and students everywhere may have access to those videos.
Shodor
Interactivate is a set of free, online course ware for exploration in science and mathematics. It is comprised of activities, lessons, and discussions.
Apps Math Flyer and Slope Slider
Thinking Blocks
Thinking Blocks teaches students how to model and solve word problems.
Lessons
The rules of Krypto are amazingly simple — combine five numbers using the standard arithmetic operations to create a target number. Finding a solution to one of the more than 3 million possible combinations can be quite a challenge, but students love it. And you’ll love that the game helps to develop number sense, computational skill, and an understanding of the order of operations.
In this lesson, students learn how to measure the area of the tire footprint on a car and to find air pressure using a tire gauge. Students then find the weight of the car using their fraction multiplication skills.
Students learn the basics of the metric system. They identify which units of measurement are used to measure specific objects, and they learn to convert between units within the same system.
Students experiment with units of liquid measure used in the customary system of measurement. They practice making volume conversions in the customary system.
In this lesson, students develop number sense through a series of three hands-on activities. Students explore the following concepts: the magnitude of a million, fractions between 0 and 1, and the effect of decimal operations.
Students begin by breaking down a typical summer day into a variety of activities and the amount of time they spend on each. They then translate their activity times into a simplified fraction, a decimal, and a percent. Students create a pie chart for this information that is unique to them. Students who struggle with the calculations will have the opportunity to practice these conversions by playing a game that can easily be differentiated for various levels of learners.
Balancing Algebraic Understanding
Using a balance in the classroom is a first step to algebraic understanding. Use this pan balance (numbers) applet to practice the order of operations in simplifying numerical expressions and to demonstrate the conventions of using algebraic logic in simplifying expressions.
Using the online game Deep Sea Duel, students play a card game against Okta. The objective is to choose cards so that some subset of three cards within their hand has a particular sum. Students will play several variations of the game, attempt to identify a winning strategy, and compare the game to other games that they know. This lesson plan is also available in Spanish.
This lesson is based on the article, "What Is the Name of This Game?" by John Mahoney, which appeared in the October 2005 issue of Mathematics Teaching in the Middle School, Volume 11, Number 3, pp. 150–154.
The Factor Game engages students in a friendly contest in which winning strategies involve distinguishing between numbers with many factors and numbers with few factors. Students are then guided through an analysis of game strategies and introduced to the definitions of prime and composite numbers.
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