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Bridges in Mathematics Grade 2

Unit 1 – Figure the Facts

Eye Color – Create a virtual picture graph using data on class eye color.

Favorite Snacks – Create a virtual picture graph using data on favorite class snacks.

Pictograms – View a variety of picture graphs and answer the related questions.

Bonds of Ten – Build combinations to ten with pipe sections to set a whale free.

Catch Ten – Catch the base ten blocks that add up to ten.

Connect Sums – Click on values that add up to target sum. Clicked items must be next to each other. Values can be shown as dice, numbers, or money.

Double Decker Bus – Click and drag to put the right number of children on a bus. Windows resemble a double five frame and encourage students to explore combinations to ten. Click “check number” to make the bus go.

How Many Under the Shell – After viewing bubbles under a shell, bubbles are added or subtracted from the total and students must determine how many are left.

Jet Ski Addition – Move jet ski along by solving addition problems. Choose the correct answer from 4 given choices. Play against other online players or the computer.

Math Lines – Race to pair numbers that add up to 10. Or select this version of Math Lines and choose your own target number.

Number Fact Bingo – Choose from 6 bingo games–highlighting a variety of math strands–to use with an entire class. Print the bingo game cards and use an online machine to select the numbers. Combines desktop and online resources.

Number Twins – Find pairs that make 10 (or select any number between 4 and 15).

Speed Grid Addition – Select two numbers from a grid that equal the given sum. Timed. More advanced levels with multi-digit addition are also available: Speed Grid Addition 2 and Speed Grid Addition 3.

Speed Grid Subtraction – Select two numbers from a grid that equal the given difference. Timed. More advanced levels with multi-digit numbers are also available: Speed Grid Subtraction 2 and Speed Grid Subtraction 3.

Subtraction Blast – Subtract either 2 or 3 from a number as many times as desired and get to 0 as quickly as possible.

Sum Sense Addition – Drag and drop number cards–with unknowns in all positions–to make an addition equation.

Sum Sense Subtraction – Drag and drop number cards–with unknowns in all positions–to make a subtraction equation.

Sums Stacker – Drag values from stack to stack until the sum of each stack equals the target number. Choose from values shown in: dice, numbers, money. Try to make as few moves as possible. Choose from solve or race modes.

Ann & Addems Dartboard Game – Select the number on the dartboard that must be doubled to equal the target number.

Bridge Doubles – Double numbers 1-10 to complete a series of bridge spans.

Connect Sums – Click on values that add up to target sum. Clicked items must be next to each other. Values can be shown as dice, numbers, or money.

Deep Sea Duel – Collect cards that add up to a specified sum. Choose how many cards, types of numbers, and level of strategy.

Dinosaur Dentist – Use knowledge of doubles plus or minus one to remove the dinosaur’s bad tooth.

Number Fact Bingo – Choose from 6 bingo games–highlighting a variety of math strands–to use with an entire class. Print the bingo game cards and use an online machine to select the numbers. Combines desktop and online resources.

Robin Hood Archery Doubles – See a number, then click the double on the archery board. Up to 10+10. Try Robin Hood Doubles Beyond 10 for doubles greater than 10+10.

Number Jump – Add and subtract on a number line to move a ball and smash flies.

Unit 2 – Place Value & Measurement with Jack’s Beanstalks

Base Ten – Represent a given number using base ten blocks. The program keeps track of the number of blocks as they are added and shows the progression on a numberline. Drum beat included; may wish to mute sound.

Partitioning Numbers – View a visual model of tens and units and click on the number represented.

Shark Numbers – Given three numbers, look at the base ten pieces and click on the bubble that shows that number. Shark bites the boat if incorrect.

Shark Pool Place Value – Look at the base ten pieces and click on the bubble that shows that number. In this game there are many numbers to choose from.

Place Value Calculator – View a 4-digit target number to make in expanded form. From this link go to “Teachers Toolkit” and then to “Place Value Calculator.” Also see the “Virtual HTU Place Value Cards.”

Connect Sums – Click on values that add up to target sum. Clicked items must be next to each other. Values can be shown as dice, numbers, or money.

Deep Sea Duel – Collect cards that add up to a specified sum. Choose how many cards, types of numbers, and level of strategy.

Dinosaur Train: How Big Are You – Estimate and measure the length of dinosaurs in non-standard units.

Number Jump – Add and subtract on a number line to move a ball and smash flies.

Catapult Count On – Add a single digit to a double digit to jump to the next multiple of ten on a number line and destroy a castle. Pull down on the catapult to adjust the number added on the number line. Check “hide jumps” to use mental math. See help video for demo.

ICT Numberline Games – Site features a variety of number line games.

Number Line Puzzle: Missing Numbers – Place numbers onto a blank numberline to complete a puzzle. (Requires a small annual subscription fee as a TESiboard+ activity.)

Techno Tortoise – Add 2 numbers by moving a turtle along a number line using -1, +1, +5, or +10. Most problems are multi-digit. Site includes a demonstrator tool that could be used by teachers for whole group instruction. In the game mode, 5 correct answers results in a quick non-math, video-like activity.

Washing Line – Place cards in numerical order on a clothesline.

Doorway Odd and Even – Variety of odd and even math games include: pairing shoes, sorting ladybug spots, painting houses by number, selecting odd or even numbered eggs.

Fish Counting – Count by 2s to select the fish that comes next

Odd or Even? – Drag number cards into the appropriate category, odd or even. Could be done individually or as a whole group activity. Levels include: numbers to 10, 30, and 100.

Saucer Sorter – Count numbers in any sequence (count by 2s, 5s, and more) up to 200. The teacher tool allows you to cover numbers or move numbers around in a given sequence.

Unit 3 – Addition & Subtraction Within One Hundred

Adding 2-Digit Numbers – Break two-digit numbers into tens and ones and then add them.

Base Ten – Represent a given number using base ten blocks. The program keeps track of the number of blocks as they are added and shows the progression on a numberline. Drum beat included; may wish to mute sound.

Connect the Dots: Multiples – In these connect the dot pictures, players set the counting sequence. Set the pictures to practice counting by 1s, 5s, 10s, or set your own number to practice multiples.

Grouping & Grazing – Count, add, & subtract to move cows into corrals. Corral in groups of 5 or 10.

ICT Numberline Games – Site features a variety of number line games.

Saucer Sorter – Count numbers in any sequence (count by 2s, 5s, and more) up to 200. The teacher tool allows you to cover numbers or move numbers around in a given sequence.

Techno Tortoise – Add 2 numbers by moving a turtle along a number line using -1, +1, +5, or +10. Most problems are multi-digit. Site includes a demonstrator tool that could be used by teachers for whole group instruction. In the game mode, 5 correct answers results in a quick non-math, video-like activity.

Whack a Mole – Select the number in a counting sequence. Game can be set for any start number and any counting-by sequence.

Catapult Count On – Add a single digit to a double digit to jump to the next multiple of ten on a number line and destroy a castle. Pull down on the catapult to adjust the number added on the number line. Check “hide jumps” to use mental math. See help video for demo.

Base Blocks Addition – Add multi-digit numbers using base ten blocks. Uses Java.

Base Blocks Subtraction – Subtract multi-digit numbers using base ten blocks. Uses Java.

Base Ten – Represent a given number using base ten blocks. The program keeps track of the number of blocks as they are added and shows the progression on a numberline. Drum beat included; may wish to mute sound.

Comparing Numbers – Read a prompt and move the correct number(s) into the answer box. Activities include: find 3 odd (or even) numbers, find the smallest or largest odd or even number, put numbers in ascending or descending order, create the largest or smallest number, or choose the number that fits into a given sequence.

Fridge Magnet Addition Game – Add double-digits with unknowns in various positions by dragging magnets on a fridge. Choose timed or not timed versions

Fridge Magnet Subtraction Game – Solve a subtraction problem with unknowns in various positions by dragging magnets on a fridge. Uses 2 digits subtract 1 digit. Choose timed or not timed versions.

Unit 4 – Measurement

Inches to Feet – Match measurements in inches to their equivalent in inches and feet. Involves mental computation that might be challenging for some students.

Measurement Mania: U.S. Customary – Show conversions between inches, feet, and yards on a sliding number line. Involves mental computation that might be challenging for some students.

Mathmagician Addition – Timed practice with basic addition facts.

Yards to Feet – Match measurements in feet to their equivalent in yards and feet. Involves mental computation that might be challenging for some students.

Saucer Sorter – Count numbers in any sequence (count by 2s, 5s, and more) up to 200. The teacher tool allows you to cover numbers or move numbers around in a given sequence.

Unit 5 – Place Value to One Thousand

Base Ten – Represent a given number using base ten blocks. The program keeps track of the number of blocks as they are added and shows the progression on a numberline. Drum beat included; may wish to mute sound.

Number Sense – Arrange 3 digits to create a 3-digit number larger than a given 3-digit number.

Shark Numbers – Given three numbers, look at the base ten pieces and click on the bubble that shows that number. Shark bites the boat if incorrect.

Place Value Calculator – View a 4-digit target number to make in expanded form. From this link go to “Teachers Toolkit” and then to “Place Value Calculator.” Also see the “Virtual HTU Place Value Cards.”

Coin Box – Variety of activities to count, collect, exchange, and make change for coins. From NCTM. Use as a whole group activity until students are familiar with the various features. Also see coin resources from the U.S. Mint.

Coin Combo – The player selects coins that add to a target sum before time runs out. This game involves mental math that may be challenging for some students.

Connect Sums – Click on values that add up to target sum. Clicked items must be next to each other. Values can be shown as dice, numbers, or money.

Saucer Sorter – Count numbers in any sequence (count by 2s, 5s, and more) up to 200. The teacher tool allows you to cover numbers or move numbers around in a given sequence.

Ghost Blasters – Blast every ghost that displays a multiple of the number you choose. Game may be set for multiples of any number from 2-20.

Whack a Mole – Select the number in a counting sequence. Game can be set for any start number and any counting-by sequence.

Doorway Odd and Even – Variety of odd and even math games include: pairing shoes, sorting ladybug spots, painting houses by number, selecting odd or even numbered eggs.

Patch Tool – Drag and drop virtual pattern blocks: arrange blocks to create designs, build sequences, or fill in a puzzle (similar to a tangram puzzle).

Pattern Blocks – Use virtual pattern blocks to create designs and patterns and explore area. Click on Instructions for general information, such as how to rotate a block. Or scroll through the activities on the right.

Polyominoes – Use virtual tile to create designs and patterns and explore area. Click on Instructions for general information. Uses Java.

Unit 6 – Geometry

Concentration – Click on the desired mode to play a game in which you match each shape, array, percent, or fraction visual with its name. The game will play an audio recording of the name.

Patch Tool – Drag and drop virtual pattern blocks: arrange blocks to create designs, build sequences, or fill in a puzzle (similar to a tangram puzzle).

Pattern Blocks – Use virtual pattern blocks to create designs and patterns and explore area. Click on Instructions for general information, such as how to rotate a block. Or scroll through the activities on the right.

Shape Lab – Help a cartoon scientist finish his project by handing him the shapes with the right characteristics. Students will need to be able to read the clues or have a helper read them aloud.

Shifting Shapes – Identify a simple 2D shape hidden on the screen using a small window to look at parts of the shape. Try Shifting Shapes Year 1 for additional shapes: hexagon, octagon. Also see Guess the Hidden Shape (TESiboard.)

Triangle Sort – Sort triangles according to their properties.

Polyominoes – Use virtual tile to create designs and patterns and explore area. Click on Instructions for general information. Uses Java.

Fractions Naming – Write the fraction represented by the highlighted part of a shape.

Let’s Tessellate! – Choose a shape and color and watch it tessellate automatically.

Polygon Playground – Drag shapes to explore polygons and create pictures, tessellations, symmetrical objects, and patterns.

Tessellate! – Start with a triangle, rectangle or hexagon. Make alterations to the shape, assign colors, and then watch as a tessellation is created with your shape.

Tessellations.org – This site is devoted to exploring tessellations with young students. It includes galleries of students’ tessellations, background information, and activities.

Thirteen Ways of Looking at a Half – Find 13 different ways to show one-half by highlighting 4 out of 8 congruent triangles that are arranged in a square.

Fraction Flags – Click on an array to paint a flag with specific combinations of halves and quarters.

Fraction Pieces – Choose a square or circle as the whole and then place pieces of different sizes and shapes on the whole to see what fraction each represents.

Kite Shading – Color kites to show given fractions. Demonstrate that fractions such as one-half can be shown in multiple ways.

Unit 7 – Measurement, Fractions & Multi-Digit Computation with Hungry Ants

Ant Web in Google Earth – Explore ant species around the world.

ICT Numberline Games – Site features a variety of number line games.

Measurement Game: Centimeters – View a red line next to a centimeter ruler and select the correct answer from four options.

Techno Tortoise – Add 2 numbers by moving a turtle along a number line using -1, +1, +5, or +10. Most problems are multi-digit. Site includes a demonstrator tool that could be used by teachers for whole group instruction. In the game mode, 5 correct answers results in a quick non-math, video-like activity.

Color Spinners – Create spinners divided into different colors and watch the results of spinning the spinner a specified number of times.

Fraction Bars – Create fraction bars of different sizes and colors to model fractions.

Fraction Flags – Click on an array to paint a flag with specific combinations of halves and quarters

Fraction Pieces – Choose a square or circle as the whole and then place pieces of different sizes and shapes on the whole to see what fraction each represents

Fractions Naming – Write the fraction represented by the highlighted part of a shape.

Fractions, Parts of a Whole – Model fractions as parts of a whole circle or square. Specify the number of equal parts and then select some of them to model a fraction.

Amoeba Addition Game – Practice adding 3 digits by splitting numbers. Look for title “Addition by Splitting” game.

Amoeba Subtraction Game – Practice subtracting 3 digits by splitting numbers. Look for title “Subtraction by Splitting” game.

Base Blocks Addition – Add multi-digit numbers using base ten blocks. Uses Java.

Base Blocks Subtraction – Subtract multi-digit numbers using base ten blocks. Uses Java.

Coin Box – Variety of activities to count, collect, exchange, and make change for coins. From NCTM. Use as a whole group activity until students are familiar with the various features. Also see coin resources from the U.S. Mint.

Coin Combo – The player selects coins that add to a target sum before time runs out. This game involves mental math that may be challenging for some students.

Dolphin Feed Counting Money – Click on coins to equal an amount of money shown in numerical form. Includes collections over $1.00.

Number Bond Machine – Fill in the missing addend to make the sum of 5, 10. or 100. This works well as an “I Have, You Need” game.

Number Sense – Arrange 3 digits to create a 3-digit number larger than a given 3-digit number.

Sums Stacker – Drag values from stack to stack until the sum of each stack equals the target number. Choose from values shown in: dice, numbers, money. Try to make as few moves as possible. Choose from solve or race modes.

Fridge Magnet Addition Game – Add double-digits with unknowns in various positions by dragging magnets on a fridge. Choose timed or not timed versions.

Fridge Magnet Subtraction Game – Solve a subtraction problem with unknowns in various positions by dragging magnets on a fridge. Uses 2 digits subtract 1 digit. Choose timed or not timed versions.

Unit 8 – Measurement, Data & Multi-Digit Computation with Marble Rolls

Amoeba Addition Game – Practice adding 3 digits by splitting numbers. Look for title “Addition by Splitting” game.

Amoeba Subtraction Game – Practice subtracting 3 digits by splitting numbers. Look for title “Subtraction by Splitting” game.

Base Blocks Addition – Add multi-digit numbers using base ten blocks. Uses Java.

Base Blocks Subtraction – Subtract multi-digit numbers using base ten blocks. Uses Java.

Compare Numbers – Compare numbers and place the correct sign between them. Three levels: numbers to 100, 1,000, 10,000.

Number Sense – Arrange 3 digits to create a 3-digit number larger than a given 3-digit number.

Mr. Nussbaum’s Graph Master – Students create a bar graph, line graph, and pie chart based on data collected from classmates. The program then asks them eight multiple choice questions based on the data entered. Suggested ages: 7-12.

Eye Color – Create a virtual picture graph using data on class eye color.

Favorite Snacks – Create a virtual picture graph using data on favorite class snacks.

Inches to Feet – Match measurements in inches to their equivalent in inches and feet. Involves mental computation that might be challenging for some students.

Pictograms – View a variety of picture graphs and answer the related questions.