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Mathematics Knowledge & Skills - 2nd Grade

| Number, operation, and quantitative reasoning | Patterns, relationships, and algebraic thinking | Geometry and spatial reasoning |
| Measurement | Probability and statistics | Underlying processes and mathematical tools |
Page created 2/11/07
Return to Grade Level Skills

a site for teachers | a PowerPoint show | Adobe Acrobat document | a Word document sound | video format | interactive lesson | a quiz | lesson plan | to print

1. Ant Parade - count by twos and threes to pick correct number of ants
2. Base 10 Blocks - Exploring whole decimal numbers with blocks
3. Connect the Dots - count by ones or fives
4. Connect the Dots - make a dog by counting by fives
5. Cookie Dough - type the word that corresponds to the numeral - do the reverse and type in the number that corresponds with the word.
6. Count Us In - 12 activities that help with understanding basic math. - number recognition, ordinal numbers, sorting, patterns, addition, subtraction,time
7. Counting by Twos - click on the fish that has the next number
8. Ghost Blasters - Click on ghosts that are multiples of ten. Click as many times as you can, you can get multiple points on each ghost.
9. Give the Dog a Bone - use a hundreds charts to find numbers
10. Multiples of Three - connect the dots using multiples of three
11. Rabbits - [this link opens on a new page] recall multiplication facts using a hundreds chart (Author - Kaye Maddox)
12. Splat Square - This hundreds chart allows the selection of any number by clicking a color to splat then clicking on the number.
13. Spooky Sequences - One of the ghosts is missing a number. Click on the numbers along the bottom to enter the right number in the sequence. one digit numbers (by ones) | two digit numbers (by ones) | three digit numbers (by ones) | counting by twos | counting by fives | counting by tens | backward by ones | backward by twos | backward by fives | backward by tens
14. Super Sequencer - Input the starting number of a sequence, the increment (amount of change), and then select the speed with which the next numbers will be displayed. an your students predict the next number?
15. Three is a Magic Number - [this link opens on a new page] learn multiples of three (Author - Carol Senn)
16. Worksheet Generator - Print your own one hundred chart. A one hundred chart can be used to teach counting or skip counting.

1. Expanded Form of Numbers - write the numeral the expanded form represents
2. Finding Place Values - find the place value of a particular numeral within a number
3. Grouping by 10s and ones - click on ten ones and press group to make groups of ten and determine the numeral
4. Identifying Place Values - identify the place value of the digits given
5. My Place - [this link opens on a new page] learn that the value of a digit is determined by the placement of that digit (Author - Sandi King)
6. Partitioning numbers - Select the number that represents the partitioned numeral.
7. Place Value - this video lesson explains place value in whole numbers and decimal numbers, and then gives your students the chance to show understanding on a quiz.
8. Place Value - [this link opens on a new page] Enter your own number or generate a random number, then answer questions about the place values.
9. Place Value Party - Choose any ages to start, then trade candles until both cakes have the same number.
10. Specific Place - find the numeral in a specific place value
11. Practice place value at FreeMathTest -numbers from .10 to .99, numbers from .100 to .999, numbers 10 to 99, numbers 100 to 999

1. Alligator Lunch - [this link opens on a new page] learn greater than and less than symbols (Author - Sandi King)
2. Compare It! - [this link opens on a new page] Students can practice comparing numbers, objects, or words using Greater Than, Less Than, Equal, Greater Than or Equal, Less Than or Equal, and Not Equal operators. You can have them compare words only, symbols only, or use both words and symbols comparing one digit numbers | comparing two digit numbers | comparing three digit numbers
3. Practice comparison at FreeMathTest - numbers from .10 to .99, numbers from .100 to .999, numbers from 0 to 10, numbers from 10 to 50, numbers from 50 to 100.
4. Using Comparison Symbols - choose the correct comparison symbol
5. Wabbit Words - Read the sentence and then find a carrot with the appropriate number, e.g. 'Less then 26' choose any carrot that is less than 26.

1. Fabulous Fractions - [this link opens on a new page] learn the concept of equal parts as related to fractions (Author - Karen Chandler)
2. Fraction Flags - design a flag using halves or quarters
3. Fraction Flags - design a flag using thirds
4. Fraction Match - find the fraction that matches with the correct graph
5. Fraction Painting - use a 2x2 grid, 3x3 grid, 4x4 grid, 5x5 grid, or a 6x6 grid
6. Fractions II - fourths
7. Fraction Review - beginning fractions
8. Identify With Circles - fraction practice where student types in numerator and denominator
9. Kids and Cookies - "introduces concepts of rational number and division through the simulation of sharing cookies with friends" (Thanks, Laura)

1. Flowering Fractions - [this link opens on a new page] understand common fractions by using model representations (Author - Roseanne Phillips)
2. Fraction Bar - add a bar then break it into fractions, decimals, or percents
3. I Want My Half - [this link opens on a new page] understand the concrete and symbolic representations of fractions (Author - Sandi King)
4. Kids and Cookies - "introduces concepts of rational number and division through the simulation of sharing cookies with friends" (Thanks, Laura)
5. Old Egyptian Math Cats Fractions - Add fractions like a true Old Egyptian Math Cat!
6. Percent Paint - students paint blocks on a 10x10 grid – use this as a whole group activity and ask students to paint fractions or percents.

1. Guess the Number - developing skills in halving and estimation

1. Ambleweb Addition Machine - select Level 1 to practice this skill
2. Ambleweb Subtraction Machine - Students choose a skill level, type the answer, and then check for correctness.
3. Are You a Math Magician? - Two levels of practice with several operations are available; addition, subtraction, multiplication or division. Mixed practice is also available; addition and subtraction, multiplication and division, or a mix of all four. Select the level appropriate for this skill. Addition game & Subtraction game also available
4. Ghost Blasters II (addition practice) - (two players) Students must “blast” a pair of ghosts whose sum equals some number specified before the game begins. Sums from 5 to 99 can be set.
5. It's A Fact - [this link opens on a new page] practice basic subtraction facts (Author - Kaye Maddox)
6. Math Facts from Harcourt School - (K-3) Content available at the site: Addition and Subtraction sums and differences to 10, 12, and 20; Multiplication and Division facts to 5, to 10, to 12. Verbal instructions are included and students can select timed or untimed. (30 facts)
7. Math stories with Leon the Chameleon - Click on the Addition and Subtraction button under the heading Select a Story (select Maybe Later on the registration screen)
8. Math With Money Worksheet 3 - You have a given amount of money, and want to buy something. How much will you have left? (small numbers used)
9. Math With Money Worksheet 4 - various problems involving purchases (Small numbers used)
10. Math With Money Worksheet 4 - various problems involving purchases (Small numbers used)
11. Math With Money Worksheet 5 - various problems comparing money; twice as much, half as much, etc. (Small numbers used)
12. Math With Money Worksheet 6 - a student gives another money, how much is left? (Small numbers used)
13. Speed Grid: Addition - (level 1) Students answer the question set by clicking on two numbers that complete the sentence. You set the number of questions (2 to 99) and the time limit (1 to 10)
14. Speed Grid: Subtraction - (level 1) Students answer the question set by clicking on two numbers that complete the sentence. You set the number of questions (2 to 99) and the time limit (1 to 10)
15. Sum Fun - [this link opens on a new page] practice addition facts to 18 (Author - Kaye Maddox)
16. Sum Sense (Addition) - practice single digit addition by dragging numbers to complete the sentence
17. Sum Sense (Subtraction) - practice single digit subtraction by dragging numbers to complete the sentence
18. Test the Toad - Add or subtract numbers from 1 to 15 by clicking on the numbered person.
19. Tic-Tac-Toe Squares - (Fun Brain) Addition - Numbers less than 50
20. Tic-Tac-Toe Squares - (Fun Brain) Subtraction - Numbers less than 10
21. The Art of Math - Create your own math tests. Learn math through repetition. Each math test is randomly generated based on the values you provide (you set grade level and difficulty). This allows each math test to be unique, providing students with an endless number of challenges. (help with adding, subtracting, or multiplying) K - 3
22. What number would complete this sentence? - find the missing addend

1. Addition
   1. Arithmetic Four - (A game like Connect Four) A pair of students must answer arithmetic questions (addition, subtraction, multiplication, division) to earn a piece to place on the board. Parameters: time limit, difficulty level, types of questions
   2. Addition Surprise - fill in sums in the addition grid to complete a surprise picture
   3. Ambleweb Addition Machine - three levels available
   4. Are You a Math Magician? - Two levels of practice with several operations are available; addition, subtraction, multiplication or division. Mixed practice is also available; addition and subtraction, multiplication and division, or a mix of all four. Select the level appropriate for this skill. Addition game also available
   5. Arrithmattack! - race against the clock - add as fast as you can in 60 seconds
   6. Ghost Blasters II (addition practice) - (two players) Students must “blast” a pair of ghosts whose sum equals some number specified before the game begins. Sums from 5 to 99 can be set.
   7. Hidden Picture - the answer is given and you must select the problem to reveal a hidden picture. Good for a pair of students together
   8. Math Baseball - Complete the Number Sentence. - Addition - Numbers less than 10
   9. Math Facts - timed math facts, or select practice mode without the timer
   10. Math Mastery - select operation and practice your facts
   11. Mad Math Minutes - [this link opens on a new page] This is a great way to practice basic math skills in addition, subtraction, multiplication, and division. You pick the number of and types of problems that you want to practice. You may also choose the largest number used in a problem as well as the number of terms (numbers) used
   12. Math Mayhem - a fast paced program where you can select addition problems. Most are two digit problems.(warning: turn sound to mute; this activity gets very loud!)
   13. Mental Math - select Addition to practice your skills
   14. Paint Brush Math - Paint by Numbers (but figure out the equations to figure out what the numbers actually are.) (Please let us know if the ads are too irritating)
   15. SpacyMath - One must sign in, but you can use the same log on for everyone in the class. Choose from addition or subtraction
   16. Speed Grid: Addition - (level 1) Students answer the question set by clicking on two numbers that complete the sentence. You set the number of questions (2 to 99) and the time limit (1 to 10)
   17. Sum Sense (Addition) - Students practice single digit addition by dragging numbers to complete the sentence.
   18. Timed Addition Facts - At end of 60 seconds this page shows the score and answers to problems.
2. Subtraction
   1. Are You a Math Magician? - Two levels of practice with several operations are available; addition, subtraction, multiplication or division. Mixed practice is also available; addition and subtraction, multiplication and division, or a mix of all four. Select the level appropriate for this skill. Subtraction game also available
   2. Arithmetic Four - (A game like Connect Four) A pair of students must answer arithmetic questions (addition, subtraction, multiplication, division) to earn a piece to place on the board. Parameters: time limit, difficulty level, types of questions
   3. Bowling Subtraction - bowl down pins by answering subtraction problems
   4. Fill-in Equation - supply the missing number in subtraction equations
   5. Math Baseball - Subtraction - Numbers less than 5
   6. Math Mayhem - a fast paced program where you can select subtraction problems (warning: turn sound to mute; this activity gets very loud!)
   7. Mad Math Minutes - [this link opens on a new page] This is a great way to practice basic math skills in addition, subtraction, multiplication, and division. You pick the number of and types of problems that you want to practice. You may also choose the largest number used in a problem as well as the number of terms (numbers) used
   8. Mystery Picture - subtract and find the mystery picture under the tiles (subtraction facts to 20)
   9. Mystery Picture - subtract 2 digit numerals, no borrowing.
   10. Mixed Review - addition and subtraction of three numbers, find answer to reveal mystery picture. (warning: very difficult, student will need pencil and paper)
   11. Number Families - fill in the missing numeral when given the family of addition and subtraction values
       1. More practice can be found here in the relationships between addition and subtraction
   12. Speed Grid: Subtraction - (level 1) Students answer the question set by clicking on two numbers that complete the sentence. You set the number of questions (2 to 99) and the time limit (1 to 10)
   13. Sum Sense (Subtraction) - Students practice single digit subtraction by dragging numbers to complete the sentence

1. Adding Nickels and Pennies - find the sum of the coins
2. Adding Dimes and Pennies - find the sum of the coins
3. Adding Dimes, Nickels and Pennies - find the sum of the coins
4. Change It! - [this link opens on a new page] practice adding up all of your coins - You select the number of problems that you want to use as well as the number of pennies, nickels, dimes, quarters, and half dollars that may appear in each problem. You may elect to express your questions in words only, coins only, or a combination of both
5. Change Maker - Figure out how many of each bill or coin that you expect to get back when you pay for something. Select Easy for problems involving less than $1.00
6. Coins for Candy - [this link opens on a new page] identify, know the value of, and compare the values of a penny, nickel, and dime (Author - Sandi King)
7. Counting Change - a match game, counting coins to find amount of change and matching it with numerical number
8. Counting Coins - interactive learning exercises are designed to help your students learn and practice their coin counting skills. Create your own difficulty level based on your students' skill level and needs.
9. Counting Money - Help Kristen, Ryan, or Evan with their shopping. Six pages of problems are available; three easy and three hard.
10. Count the Coins - values up to 10 cents | values up to 50 cents | values up to 100 cents
11. Discovering Coin Values - a target amount is given and students drag coins to the slide to equal that amount [values over $1.00 used occasionally]
12. Grandpa's Game - [this link opens on a new page] count money (Author - Sandi King)
13. How Many Cents? - Count the coins to find the total number of cents.
14. How Much Money is This? - count by 10's (dimes) up to $1.00
15. Learn to Count Money - add the value of the coins (teacher can set this activity easy or harder)
16. Let's Count Money (introduction and instructions) followed by a quiz - coin value problems occasionally display amounts greater than 50¢ but never more than $1.00. This site uses both sides of the coins!
17. Math With Money Worksheet - What is the value of the missing coin?
18. Math With Money Worksheet 2 - You have a given amount of money, and want to trade it in for some other coin. How many will you get
19. Money Drills (from Room 108) - drag coins, one at a time, to equal the amount given
20. Money Flashcards - Coins and bills, or just coins, are displayed and students determine the value. Best used as a whole class review; this is not a game with an end. Occasionally values greater than $1.00 are displayed.
21. Piggy Bank - As coins drop students click on the right coins to equal some target amount. Two games are available; easy or hard.
22. Spending Spree - Pick the item that you would like to buy. Then choose the correct amount of coins you need to pay for that item. This game has 10 questions.
23. Too Much Noise - [this link opens on a new page] determine the fewest number of coins needed to produce a given amount (Author - Sandi King)
24. Tutorials - select the coin (or combinations) you want your students to practice
25. U. S. Coins (printables from Enchanted Learning) - Scroll a bit more than halfway down this page until you see Adding and Subtracting Coins (Printouts). Look below that to see about six dozen printables of various difficulty.
26. Which Coin? - Students select the coin that completes the total needed.

1. Number & Operations (Grades Pre-K - 2)

1. Give the Dog a Bone - use a hundreds charts to find numbers
2. Numeracy Games - many games dealing with numeration
3. Numeracy Games - many games to choose from
4. Number Gym - read the numeral and create the number word
5. Rabbits - [this link opens on a new page] recall multiplication facts using a hundreds chart (Author - Kaye Maddox)
6. Really Big Numbers - Enter a number then click the Click here button to see how to write it.
7. Splat Square - This hundreds chart allows the selection of any number by clicking a color to splat then clicking on the number.
8. Use Excel to make a hundreds chart - one of the graphic organizers you can make with Excel
9. Worksheet Generator - Print your own one hundred chart. A one hundred chart can be used to teach counting or skip counting.

1. Find the missing number - Find the butterfly that holds the missing number.
2. Solid Pattern Pieces - [this link opens on a new page] Students name the different faces of solid figures to make objects using a pattern. (Author - Paulette Boggs)

1. Brenda's Bedroom Border - [this link opens on a new page] complete a pattern (Author - Paulette Boggs)
2. Christmas Lights - [this link opens on a new page] identify and complete patterns (Author - Kaye Maddox)
3. Create your own pattern - drag shapes to create a pattern.
   1. Instructions on how to use this page in your classroom.
4. Fruity Flip Flop - students must move fruit to form rows of three, or more, of the same fruit. (Caution: limit their time on this activity, it can be truly addictive!)
5. Missing Numbers - [this link opens on a new page] find the missing numbers in a sequence (Author - Carol Senn)
6. Number Cracker - guess what number comes next in the pattern
7. Patterns - this video lesson explains patterns, and then gives your students the chance to show understanding on several quizzes.
8. Spooky Sequences - One of the ghosts is missing a number. Click on the numbers along the bottom to enter the right number in the sequence. (square numbers)
9. Spooky Sequences - One of the ghosts is missing a number. Click on the numbers along the bottom to enter the right number in the sequence. (triangular numbers)
10. Spooky Sequences - One of the ghosts is missing a number. Click on the numbers along the bottom to enter the right number in the sequence. one digit numbers (by ones) | two digit numbers (by ones) | three digit numbers (by ones) | counting by twos | counting by fives | counting by tens | backward by ones | backward by twos | backward by fives | backward by tens
11. Super Sequencer - Input the starting number of a sequence, the increment (amount of change), and then select the speed with which the next numbers will be displayed. an your students predict the next number?
12. What comes next? - find the next shape in the pattern
13. What Comes Next? - study repeating patterns and click on the one that continues the pattern
14. Wolf, Goat, and Cabbage - Old Russian Puzzle: You have to carry a wolf, a goat, and a cabbage across a river.

1. Algebra (Grades Pre-K - 2)

1. 2 and 3D shapes Activities - identify and investigate two-dimensional and three-dimensional shapes
2. 2D shapes - identify and compare these shapes
3. Anglemania - (3-5) [this link opens on a new page] describe triangles using appropriate geometric vocabulary (Author - Laurie Ayers) (decide if this is appropriate for your second grade students)
4. Create your own pattern - drag shapes to create a pattern (Instructions on how to use this page in your classroom)
5. Geo Cleo - [this link opens on a new page] take a look at how to describe three-dimensional shapes (Author - Julie Thompson)
6. Pattern Detectives - [this link opens on a new page] identify and extend patterns in a variety of settings - Audio is used to assist non-readers. (Author - Sandi King)
7. Solid Pattern Pieces - [this link opens on a new page] name the different faces of solid figures to make objects using a pattern (Author - Paulette Boggs)
8. What comes next? - find the next shape in the pattern

1. 2 and 3D shapes Activities - identify and investigate two-dimensional and three-dimensional shapes
2. 2D shapes - identify and compare these shapes
3. Create your own pattern - drag shapes to create a pattern (Instructions on how to use this page in your classroom)
4. Geo Cleo - [this link opens on a new page] take a look at how to describe three-dimensional shapes (Author - Julie Thompson)
5. Mr. Mumble - [this link opens on a new page] take a look at how to describe two-dimensional shapes (Author - Julie Thompson)
6. Pattern Detectives - [this link opens on a new page] identify and extend patterns in a variety of settings - Audio is used to assist non-readers. (Author - Sandi King)
7. Solid Pattern Pieces - [this link opens on a new page] name the different faces of solid figures to make objects using a pattern (Author - Paulette Boggs)
8. What comes next? - find the next shape in the pattern

1. Ask Hannah - [this link opens on a new page] describe symmetry in two-dimensional shapes (Author - Julie Thompson)
2. Line Symmetry - many activities here
3. Symmetry Lesson - and interactive quiz

1. Decimal Number Line - Identify and estimate decimal fractions on a number line. Move the pointer along the line, find a number between two others by looking at the next decimal place. Click on “Use the decimal number lines tool” at the bottom of the page.
2. Estimate numbers on a number line - after students make their estimate you reveal the answer and display a new problem.
3. Use Excel to make a number line - one of the graphic organizers you can make with Excel
4. Worksheet Generator - Print your own number line worksheets, you decide on the starting and ending numbers and the increment.

1. Geometry (Grades Pre-K - 2)

1. Centimeters - to nearest whole number (from FunBrain)
2. Centimeters - to half centimeter (from FunBrain)
3. Inches - to nearest whole number (from FunBrain)
4. Inches - to quarter inch (from FunBrain)
5. Measure it - practice using a ruler - inches and centimeters
6. Teaching Measures - Choose from three modules; length, mass, and capacity. Each category offers several activities for your large screen display as well as supporting worksheets.
7. The Ruler Game - Learn To Read A Ruler (inches only - increments from inches to sixteenths)
8. Worksheet Generator - (inches only) Print your own worksheets to let your students practice reading a ruler.

1. Area Explorer - Find the perimeter of shapes on a grid

1. Measuring Tools - [this link opens on a new page] select measurement tools for real-world measuring situations (Author - Sandi King)
2. Teaching Measures - Choose from three modules; length, mass, and capacity. Each category offers several activities for your large screen display as well as supporting worksheets.

1. Early Algebra Worksheet - Use the scales to find the weight of the shapes. Same shapes weigh the same amount.
2. Early Algebra Worksheet 2 - Use the scales to find the weight of the objects. Same shapes weigh the same amount.

1. Hot Stuff - [this link opens on a new page] estimate temperatures using a Fahrenheit thermometer (Author - Sandi King)
2. Interactive Applet of Thermometer - ask your students to compare the degrees between two days

1. Analog Clock - (whole class activity) You call out a time and ask a student to set the clock.
2. Bang On Time - Read the time in words then stop the clock when the hands reach the right time.
3. Clock Craft - Make a simple paper clock that you can use to practice telling time (from Enchanted Learning)
4. Clock Program - Start with either an analog or a digital clock, then set the other clock to the time given on the first clock.
5. ClockWise and Matching Time - select either of these two activities to practice telling time
6. Clockworks - Try to set the time on the clock. (four difficulty levels to choose from)
7. Draw Hands - free worksheets from Math Slice, time intervals from 1 hour to one minute
8. Feeding Time - Can you tell what time the clock shows? If so, the clock gets a meal! (Caution! The hour hand points directly at the hour regardless of the position of the minute hand)
9. Kid Klock - use pull down menus to select the time you would like to see on an analog clock
10. Match Spoken Time to Numerical Time - click on Play, listen to the time spoken then select the number that matches
11. A Matter of Time - interactive quizzes on half hour, 15 minute intervals and five minute intervals, in addition to story problems
12. Reading Clocks - set analog clock to same time as digital clock
13. Right Time - [this link opens on a new page] explore the meaning of AM and PM while they tell time to the hour and half hour (Author - Linda Burke)
14. Smiley Clock - (Scroll to the bottom. Click on the Play button.) Create a face for Smiley Clock by telling the correct time. Tell time by picking one from three choices. The clock gains eyes, nose, mouth and hair if you select the correct time.
15. Stop the Clock - match digital time to analog clocks, or written time, by dragging the digital clocks, or written time | to the nearest hour | to the nearest half hour | to the nearest fifteen minutes
16. Tell Time - free worksheets from Math Slice, time intervals from 1 hour to one minutes
17. Telling Time - Drag the five digital times to the correct analog clock, then press Stop the Clock to record your time. (30 minute increments) (15 minute increments) (5 minute increments)
18. Telling Time Practice - Drag the hands of the clock to show the correct time.
19. Time To Go - [this link opens on a new page] tell time to the half hour (Author - Randy Russell)
20. Travel Time - Which train falls in between the time limit?
21. What time is it? - for beginners just learning
22. Worksheet Generator - You decide on the variables; students tell the time or draw the hands on the clock face, time increments from half-hour to one minute, and answer sheet.

1. Elapsed Time - free worksheets from Math Slice, time intervals from 1 hour to one minute

1. Measurement (Grades Pre-K - 2)

1. All The Parts - [this link opens on a new page] learn the parts of a graph (Author - Sandi King)
2. Construct a Bar Graph - Enter the data and create your own bar graph.
3. Grapher - interactive column graph maker, students can change values and labels
4. How It All Stacks Up - [this link opens on a new page] interpret and compare information using a bar graph (Author - Sandi King)
5. Kids Have Pets - [this link opens on a new page] learn about the parts of a bar graph and how to collect information (Author - Sandi King)
6. Kinds Of Graphs - [this link opens on a new page] learn about various types of graphs (Author - Sandi King)
7. Make your own Pictograph - Use this interactive page to create your own pictographs. Click on the (eg) at the bottom for examples first, then create your own by dragging the yellow triangle to the right to get the number of items you wish.

1. Gere's Bike Shop - Read and Interpret Graphs at this BBC site
   1. After you finish the lesson at Gere's Bike Shop, take a test
2. I Am Special - [this link opens on a new page] Picture graphs are used in real world situations as students organize information, record data, and use mathematical language to read and interpret the graphs. (Author - Sandi King)
3. Interpreting a Data Chart - students practice by answering questions about what can be found in a grid chart
4. Interpreting Column Graphs - students practice by answering ten questions about the graph
5. Play Ball - [this link opens on a new page] collect data to put on a picture graph (Author - Sandi King)
6. Reading Graphs - Answer questions using this bar graph
7. Use Graphs to Answer Questions - This Saxon math site uses pictographs or tally marks in the form of check marks. Graphs are sometimes repeated with new questions. Be careful! [ignore the error messages, the site works]

1. Handling Data: Probability - use the amazing random ball-picking machine to collect data and test predictions.
   1. Handling Data: Probability - Quiz - use this quiz following the activity above
2. What Are My Chances - [this link opens on a new page] explore probability and ratios (Author - Sandi King)
3. What Should I Wear? - [this link opens on a new page] use models to determine possible outcomes (Author - Michaél Dunnivant)
4. Why Can't I Win? - [this link opens on a new page] use a spinner to predict the likelihood of simple events occurring (Author - Sandi King)

1. Data Analysis & Probability (Grades Pre-K - 2)

1. Walrus World - [this link opens on a new page] learn strategies for solving real world problems (Author - Randy Russell)

1. Four dozen word problems - problems only, no answers, not interactive
2. Math stories with Leon the Chameleon - Click on the Addition and Subtraction button under the heading Select a Story (select Maybe Later on the registration screen)
3. My Backpack - [this link opens on a new page] add columns and find missing addends using data generated from a chart (Author - Sandi King)
4. Show Me The Money - [this link opens on a new page] add using columns (Author - Sandi King)
5. Word Problems for Grades 1-5 - This KidZone math page has four second grade problems. Each time you open a new page the site generates new values for the problem.
6. Word Problem Practice - problems in addition, subtraction and more (warning: many pop-up ads on this site)

1. Let's Go Shopping - [this link opens on a new page] estimate by rounding to the nearest dollar as they shop (Author - Sandi King)
2. School Store - [this link opens on a new page] subtract using decimals as they make change [Regrouping required] (Author - Kaye Maddox)
3. Too Much Information - [this link opens on a new page] determine if irrelevant information is included when solving a problem (Author - Sandi King)

1. Color odd and even numbers - four different pictures are available
2. Dragon Eggs - Rescue the dragon's eggs by flying around the sea,deciding if the numbers are odd or even.
3. Ghost Blasters (Odd) - Click on ghosts that are even numbers. Click as many times as you can, you can get multiple points on each ghost.
4. Ghost Blasters (Even) - Click on ghosts that are even numbers. Click as many times as you can, you can get multiple points on each ghost.
5. Me Too - [this link opens on a new page] classify whole numbers as odd or even (Author - Jan Dykes)
6. Twins - [this link opens on a new page] identify odd and even numbers (Author - Sandi King)