This blog page offers more than 25 activities and games that use a Hundred Chart to develop students' skills and concepts in a variety of math topics: basic operations, number sense, patterns, number theory, fractions, decimals, and logic. The suggestions include links to materials and to other websites.

This Java applet game promotes mental math and strategic thinking skills using a card from Suntex's 24 Game. The player is presented with four numbers (1-9) on a card. The goal is to manipulate each of the four numbers only once so that the end result is 24. Addition, subtraction, multiplication, division and/or parentheses maybe used and the player must be able to enter the expression using the online calculator.

This interactive Flash applet provides a Concentration-type game (called pelmanism in the UK) in which students must discern the properties of three-dimensional solids and their colors in order to match them in pairs. Spheres, cones, prisms and other standard 3-D shapes are hidden face down on cards. Time and number of trials needed to solve are recorded.

A+ Click is an interactive collection of more than 3700 math problems and answers for K-1 K-12 school program. It defines the personal level of math knowledge. You move up into the next level if you give 5 correct answers in a row. Practice makes perfect.

This activity lets you program your 'robot' (a willing friend) to pick up and dispose of some 'toxic waste' using as few commands as possible. Learners create command cards (Turn Left, Right, Forward 1, etc.), mark out a simulation area on the floor, and try to get the "robot" to dispose of something that serves as "toxic waste" into something that serves as a "containment vessel" - in as few steps as possible. Strategy, predication and cooperation are all part of this activity.

In this game, learners strategize to be the first player to make three in a row. This game is similar to the classic Tic-Tac-Toe game, but learners slide game pieces along lines, instead of filling in boxes with X's or O's. Learners will practice mathematical thinking skills like strategizing, predicting and problem solving. This activity guide contains sample questions to ask, literary connections, extensions, and alignment to local and national standards.

In this outdoor game, learners play the roles of gray or red squirrels gathering and storing a supply of food in "fall" and recovering enough of them to survive the "winter." Learners carry bags representing their cheek pouches for carrying food. Learners investigate the advantages and disadvantages of how these two kinds of squirrels store food differently.

This activity (on pages 21-32 of PDF) has learners act out several classic brain teasers. Instead of moving checkers or pennies around on a table, learners play the role of the different pieces of the puzzle, and have to move themselves around. The lesson plan includes printable pictures of different characters than can be worn by the learners. Answers to the puzzles are provided so the facilitator can guide learners towards the solution.

Algebra One on One is a shareware educational game that teaches users about algebra. Game or practice options are available to test knowledge of the 21 functions covered. Different educational levels, including a help system for beginners, are available.

In this game, learners strategize to win the most cards by building number equations. Learners practice operations (addition, subtraction, multiplication, and division) to construct their equations. This activity guide contains sample questions to ask, literary connections, extensions, and alignment to local and national standards.

Farming ants might sound like a crazy thing to do unless you might like to eat chocolate covered ants. It turns out we can learn a lot from ants and the best way is to build your own ant farm.

This game is a part of the Tau Pack of the Kinetic City site (see description below). In this simulation, the patient's bodies are filled with bacteria. The object is to cure as many patients as possible. Learning concepts enforced here are that antibiotics are specific for the type of bacteria they treat, their strength, and that the bacteria may also become resistant to the bacteria by mutations.KINETIC CITY DESCRIPTION: "Kinetic City" (www.kineticcity.com) is a fun, Web-based after-school science club for kids, ages 8 through 11. It combines exciting online animations and activities with boxes of hands-on science experiments. Children earn "Kinetic City" power points and collect stickers as they complete missions and learn standards-based science content. Here's how it works: The "Kinetic City" super crew (Keisha, Curtis, Megan and Max) needs the help of Earth kids to save their planet Vearth, from the science-distorting computer virus Deep Delete. Each of Deep Delete's 60 hideous strains attacks a different area of science with disastrous consequences. After each attack, teams of Earth kids fight back by viewing a short online animation describing the situation on Vearth; performing a series of activities to re-learn the lost science and going on a mission to Vearth during which they answer science questions and gobble up Deep Delete viruses. Their scores appear on their own Kinetic City Club Web page. "Kinetic City" is produced by the American Association for the Advancement of Science (AAAS), with a grant from the National Science Foundation. AAAS writes the "Project 2061 Benchmarks for Science Literacy," which forms the basis of most state science standards.

Students play a generalized version of connect four, gaining the chance to place a piece on the board by answering arithmetic questions (addition, subtraction, multiplication, division). Parameters: time, difficulty level, types of questions. Arithmetic Four is one of the Interactivate assessment games.

In this Biodiversity Counts activity, students use their arthropod knowledge to create and play a classroom Jeopardy-style game. The printable five-page PDF handout includes a series of inquiry-based questions to help students identify what they already know about arthropods and step-by-step directions for developing Jeopardy-style quiz questions.

In this online activity about anatomy, learners will drag and drop pieces of the heart into their proper positions and explore what function each part of the heart has. This activity is part of a rather extensive collection of activities and information surrounding the wonder of the human heart.

In this fun online game, learners will run their own virtual bakery in order to recognize that people have many wants, that wants are unlimited, and that resources are scarce. The goal is to enable students to explain how resources can be used in various ways, identify goods and services, and recognize money as the generally accepted medium of exchange for goods and services.

In this activity, learners create improbable looking structures using craft sticks and bamboo skewers. The three structures that learners construct include "Dancer on the Table" (a popsicle stick figure that can balance on one leg by itself), "Dancer on a Tack" (a popsicle stick figure that can spin on a tack), and "Spill the Beans" (a game in which two players take turns placing beans into a cup one by one until the cup tips over spilling the beans). Use these activities individually or as a set to introduce learners to the importance of center of gravity. Note: some tools are required for assembly.

This resource allows you to customize and generate chemical equation balancing worksheets for testing or student practice.

This simple but open-ended math game introduces basic probability concepts using coins and dice. Players roll the dice and collect coins to match the number rolled. Be careful, though; if you roll a 1, you lose your coins. The player to gather the most money wins.

In this interactive game, learners compare their music-listening skills with that of a three-month-old baby. This game challenges learners to listen to pairs of tunes and detect whether their rhythm or melody is the same or different. Three-month-old babies can recognize rhythms and a series of notes as a melody. They often hear subtle changes to melodies and rhythm that adults sometimes miss. Requires a computer with speakers or headphones.

This interactive Flash game gives students practice in identifying multiples of given numbers. Users choose two multiplication tables (from 2 to 9) and the number of examples/bees they want to try (from 4 to 34). The game displays the chosen number of bees with numbers on them; users identify whether each is a multiple of one factor or the other, both factors, or neither factor. At the end of a round players may check their answers. ["e" = "and" in Italian]

For the learner just being introduced to fractions, this site is an excellent resource. It contain a very basic explanation of what a fraction is and a game for students to practice naming the fraction presented. The game can also be manipulated to have a time limit, to award time for each correct answer, and to time how fast students can get 20 more answers right than wrong.

This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest. Learners play the role of dam operator, controlling how much water passes through the dam each season. First, learners choose whether it's a very dry or wet (or average) year and adjust the level of the reservoir in fall, winter, spring and summer. Learners see how their choices affect the migrating river salmon, power bills, recreation, agriculture, flooding, and fish that live in the reservoir. The results are compared to those of the real operators, and learners can print out a copy of your final report.

In this board game, players take on the role of bioenergy crop farmers trying to earn a living while being good environmental stewards. In the process, players explore the economic and environmental tradeoffs associated with growing different bioenergy crops. The game also serves as an engaging way to explore a range of environmental issues and ecological interactions related to climate change mitigation, biodiversity conservation, water quality and sustainable agriculture.

This board game challenges players (ages 10+) to build a spaceship and fly to a black hole. The game provides opportunities for understanding phenomena based on current black hole research. During the game, players will experience the dangers and excitement of a real space mission, and learn about the nature of black holes by launching scientific probes. The game can be played competitively or as a team (instructions are also provided for playing in large groups. Black Hole Explorer consists of: Game Board, Game Rules, Spacecraft Data sheets, Science Briefing Room document, Event cards (28), Probe result cards (12), Energy tokens (140). Game components are available as PDF downloads; dice and game pieces must be provided by the user. NOTE: tokens and cards need to be cut to size from letter-size cardstock.

GameUp is a collection of top FREE online game titles that tie right in to your Science, Math, and Technology curriculum.

Animated features and activities providing mathematics instruction and homework help for younger students (K-3). Each animation is accompanied by quizzes, games, vocabulary, and other activities. Topics include addition and subtraction, multiplication and division, how to use a calendar, how to count and use money, fractions, how to make measurements, and many others. Movies, animations, and activities available via paid subscription; 5-day free trial is offered. Site offers free lesson-plan ideas.

In this creative outdoor activity, learners invent populations of make-believe organisms and then investigate real populations living in the activity site. Learners explore the concepts of variation (small difference within a population), habitat and natural history, including predator/prey relationships and protective adaptations.

In this Cyberchase interactive simulation students help the Cybersquad gather bugs to create a bar graph by sorting the bugs into the correct columns by color. Once three graphs have been created they are prompted to answer a question comparing the graphs, all of which have different scales. The simulation includes instructions and hints.

"Build It Yourself: Satellite!" is an online Flash game hosted on the James Webb Space Telescope website. The goal of the game is to explain the decision-making process of satellite design. The user can choose to build a "small," "medium," or "large" astronomy satellite. The user then selects science goals, wavelength, instruments, and optics. The satellite is then launched on the appropriate rocket (shown via an animation). Finally, the user is shown what their satellite might look like, as well as what kind of data it might collect, via examples from similar real-life satellites. Satellites range from small X-ray missions without optics (like the Rossi X-ray Timing Explorer) to large missions with segmented mirrors (like the James Webb Space Telescope).

In this on site "field trip" activity (located on pages 6-9 of PDF), learners get hands-on experience identifying building materials by playing "Building Bingo". To play, teams of learners locate interior and exterior building materials at their site, use the Natural Materials chart to complete the Building Materials Facts label, and cross off the boxes on their Bingo cards. This lesson guide includes suggestions/tips and game hand-outs.

This interactive jigsaw game gives students the opportunity to analyze and reason abstractly by combining familiar and irregular shapes to complete an irregular composite puzzle. Students must study the five tasks and carefully plan the use of component shapes. Points are awarded, but scores are reduced for using extraneous pieces.

All living beings are made up of cells. Some of them are made up of only one cell and others have many cells. Also in: Dutch | French | Hungarian | Spanish

In this math lesson, learners investigate fractions by playing a game. To play, learners roll two dice and create a fraction, using the larger number rolled as the denominator and the smaller number as the numerator. Learners then build that fractional amount on the game mat with pattern block pieces. The winner is the player who builds the greatest number of hexagons.

Learners describe objects in a room using only numbers and shapes. They can measure the object (like a desk) and make a list of facts about it (e.g. 21 inches tall, 42 inches wide, 3 different colors). Then other learners try to identify the objects described. When learners set up a free account at Kinetic City, they can answer bonus questions at the end of the activity as a quick assessment. As a larger assessment, learners can complete the Bug Blaster game after they've completed several activities.

The COUNTDOWN web site features more than 800 instructional QuickTime math videos and 350 companion worksheets that are devoted to the demonstration and support of effective mathematics instruction. These multi-indexed math movies are organized according to content standards established by the National Council of Teachers of Mathematics allowing viewers to explore specific math concepts at their own pace. Whether you are an educator brushing up on formulas, a fifth grader figuring out equivalent fractions, a grad student completing a methods assignment or a concerned parent seeking an electronic math tutor for your child, this site is a rich math resource available free of charge for your repeated use. The video clips found on this site have been edited from hour-long interactive weekly TV broadcasts on Channel 21 in Chicago.

This web site, which is part of the NCTM Illuminations project, allows students to challenge themselves or opponents from anywhere in the world by playing games that are organized around content from the upper elementary and middle grades math curriculum. The games allow students to learn about fractions, factors, multiples, symmetry, as well as practice important skills like basic multiplication and calculating area.

In this online math game from Cyberchase, learners are challenged to fill containers with water using three different sized pots. Learners select the combination of pots that will fill the containers with the fewest number of pours, without spilling over. This online activity could be used as an introduction to a hands-on measuring activity, or as a cleaner alternative to a hands-on measuring activity.

In this activity, learners take on the role of a carbon atom and record which reservoirs in the carbon cycle they visit. Learners will compare and contrast their trip with those of other learners to discover information about sources and sinks, and residence times of the different reservoirs. Ocean processes are highlighted to allow the educator to define the biological pump and explain its importance to climate. Helping learners understand the carbon cycle is essential to their understanding of the causes and consequences of climate change.