Manipulatives and Online Math Tools for 2nd Grade
Online Number Line Tool for Adding, Subtracting, Skip counting - http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/itools_int_9780547584997_/numberlines.html
Base Ten Blocks for Place Value, Addition, Subtraction, Comparing Numbers - http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/itools_int_9780547584997_/basetenblocks.html
Number Charts - Hundreds Charts, Addition Fact Charts -
http://www.oswego.org/ocsd-web/games/SplatSquares/splatsq100.html
Online Graphing Tool for all kinds of graphs (including line plots)- http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/itools_int_9780547584997_/graphing.html
Geometry/shape tool for analyzing shapes - http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/itools_int_9780547584997_/geometricfigures.html
Measurement, including money and time - http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/itools_int_9780547584997_/measurement.html
Online Number Balance for balancing equations - http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/itools_int_9780547584997_/algebra.html
Online Manipulative Tool that includes LOTS of different manipulatives and workmats, including number lines, part-part-whole mats, pattern blocks, place value blocks, two color counters, etc. - Very cool! http://www.glencoe.com/sites/common_assets/mathematics/ebook_assets/vmf/VMF-Interface.html
National Library of Virtual Manipulatives - Too many different tools to list. Almost anything you can think of! (Uses JAVA, so may not work on Chromebrooks) - http://nlvm.usu.edu/en/nav/grade_g_1.html
Online PARCC-like practice
http://www.free-test-online.com/ccss/ccss.html
Practice for tilting the Ruler - http://www.taw.org.uk/lic/itp/itps/ruler_1_2.swf
Actual practice site for PARCC tests for teachers to explore (Please don't have your kids go here in 2nd grade! Save it for the 3rd grade teachers) - http://practice.parcc.testnav.com/# - Click on practice tests along the top bar
Site for online practice of PARCC skills for Grades 3-5 (for teacher exploration) - http://nextgen.apps.sparcc.org/math/3-5
2nd grade Websites and downloadable practice
2.OA.1 - Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem
http://www.mrmaffesoli.com/Printables/2OA1/2OA1-AES.pdf
Missing Number equations
http://www.sheppardsoftware.com/mathgames/matching/AdditionX.htm
http://www.sheppardsoftware.com/mathgames/matching/SubtractionX.htm
2.OA.2 - Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
http://www.fi.uu.nl/toepassingen/00204/toepassing_rekenweb.xml?style=rekenweb&language=en&use=game
http://illuminations.nctm.org/ActivityDetail.aspx?ID=75
http://www.thatquiz.org/tq-1/?-jg0h-la-n35-p0
http://resources.oswego.org/games/mathmagician/cathymath.html
http://www.arcademicskillbuilders.com/games/alien/alien.html
http://www.amblesideprimary.com/ambleweb/mentalmaths/additiontest.html
http://www.sheppardsoftware.com/mathgames/earlymath/subHarvest.htm
http://www.additionblocksgame.com/AdditionBlocksGame/index.html
2.OA.4 - Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
2.OA.4 - Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
http://nlvm.usu.edu/en/nav/frames_asid_192_g_1_t_1.html
http://www.mathcats.com/explore/multiplicationtable.html
http://www.mrmaffesoli.com/Printables/2OA4/2OA4.pdf
2.NBT.1 - Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
100 can be thought of as a bundle of ten tens — called a "hundred."
The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).
http://www.aaamath.com/B/g21e_px1.htm#section2
http://www.learningbox.com/Base10/BaseTen.html
http://www.sheppardsoftware.com/mathgames/placevalue/value.htm
http://www.sheppardsoftware.com/mathgames/placevalue/scooterQuestJunior.htm
http://www.sheppardsoftware.com/mathgames/placevalue/MatchingPV.htm
http://www.thatquiz.org/tq-c/?-j64-l3-n35-p2kc0
http://www.ictgames.com/sharknumbers.html
http://www.ictgames.com/dinoplacevalue.html
http://resources.oswego.org/games/DogBone/gamebone.html
http://www.haelmedia.com/html/mc_m2_004.html
http://www.abcya.com/base_ten_fun.htm
2.NBT.2 - Count within 1000; skip-count by 5s, 10s, and 100s.
http://resources.oswego.org/games/spookyseq/spookycf5.html
http://resources.oswego.org/games/spookyseq/spookycf10.html
http://members.learningplanet.com/act/count/free.asp
http://illuminations.nctm.org/ActivityDetail.aspx?ID=218
http://www.education.com/worksheet/article/count-by-fives-first/
http://members.learningplanet.com/act/count/free.asp - This one could be for a challenge!
2.NBT.3 - Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
http://www.sheppardsoftware.com/mathgames/placevalue/fruit_shoot_place_value.htm
http://www.mrmaffesoli.com/Printables/2NBT3/index.html
http://www.aaamath.com/g31d_px1.html#section2
2.NBT.4 - Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.
http://www.mrmaffesoli.com/Printables/2NBT4/2NBT4-A.pdf
http://www.toonuniversity.com/flash.asp?err=509&engine=9
2.NBT.5 - Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
http://illuminations.nctm.org/ActivityDetail.aspx?ID=218
2.NBT.6- Add up to four two-digit numbers using strategies based on place value and properties of operations.
2.NBT.7 -Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
2.NBT.8 - Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
http://www.mrmaffesoli.com/Printables/2NBT8/index.html
2.NBT.9 - Explain why addition and subtraction strategies work, using place value and the properties of operations.
http://www.mrmaffesoli.com/Printables/2NBT9/2NBT9-ADD1.pdf
http://www.mrmaffesoli.com/Printables/2NBT9/2NBT9-ADD2.pdf
http://www.mrmaffesoli.com/Printables/2NBT9/2NBT9-ADD3.pdf
2.MD.1 - Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.
http://www.thatquiz.org/tq-9/?-j8-l1-n35-p0
http://www.funbrain.com/cgi-bin/meas.cgi?A1=s&A2=0&A3=01
http://www.ixl.com/math/grade-2/choose-the-appropriate-measuring-tool
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/measures/index.htm
http://www.funbrain.com/cgi-bin/meas.cgi?A1=s&A2=1&A3=0&COBR=2
http://www.funbrain.com/cgi-bin/meas.cgi?A1=s&A2=0&A3=0&COBR=2
2.MD.2 - Measure the length of an object twice, using length units of different lengths for the two measurements; describe how the two measurements relate to the size of the unit chosen.
2.MD.3 - Estimate lengths using units of inches, feet, centimeters, and meters.
http://www.fuelthebrain.com/Game/play.php?ID=4
http://www.apples4theteacher.com/measure.html
http://www.ixl.com/math/grade-2/which-metric-unit-of-length-is-appropriate
http://www.funbrain.com/measure/index.html
http://www.mrmaffesoli.com/Printables/2MD3/2MD3-LIM.pdf
2.MD.4 - Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.
2.MD.5 - Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.
http://www.ixl.com/math/grade-2/metric-units-of-length-word-problems
http://www.ixl.com/math/grade-2/customary-units-of-length-word-problems
2.MD.6 - Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.
2.MD.7 - Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.
http://www.thatquiz.org/tq-g/?&j=3&l=4&m=2kc0&n=35&p=0
http://www.lil-fingers.com/games/time/index.html
http://www.mrmaffesoli.com/Printables/2MD7/index.htm
http://www.sheppardsoftware.com/mathgames/earlymath/on_time_game3.htm
http://www.sheppardsoftware.com/mathgames/earlymath/clock_shoot.htm
http://www.ixl.com/math/grade-2/compare-clocks
http://www.arcademicskillbuilders.com/games/giraffe-pull/giraffe-pull.html
http://www.oswego.org/ocsd-web/games/BangOnTime/clockwordres.html
2.MD.8 - Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately. Example: If you have 2 dimes and 3 pennies, how many cents do you have?
http://www.corestandards.org/the-standards/mathematics/grade-2/measurement-and-data/
http://www.mrnussbaum.com/cashd.htm
http://www.funbrain.com/cgi-bin/cr.cgi
http://www.sheppardsoftware.com/mathgames/earlymath/BPEnoughCoins.htm
http://www.sheppardsoftware.com/mathgames/money/fruit_shoot_dollars_and_cents.htm
http://www.hbschool.com/activity/counting_money/
http://www.usmint.gov/kids/games/
http://www.hbschool.com/activity/counting_money/
http://www.smartygames.com/igre/math/learnMoney.html
http://www.fuelthebrain.com/Interactives/app.php?ID=40
http://www.aplusmath.com/cgi-bin/flashcards/money
http://www.abcya.com/counting_money.htm
http://illuminations.nctm.org/LessonDetail.aspx?ID=U67
2.MD.9 - Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. Show the measurements by making a line plot, where the horizontal scale is marked off in whole-number units.
http://www.ixl.com/math/grade-3/line-plots
http://www.ixl.com/math/grade-2/interpret-line-plots
http://www.ixl.com/math/grade-2/create-line-plots
http://www.k-5mathteachingresources.com/support-files/measurementlineplot.pdf
http://www.learningtoday.com/player/swf/Data_Analysis_LinePlots_L3_V1_T1a.swf
http://www.to14.com/game.php?id=4d486a31e9586
http://www.youtube.com/watch?v=L-spnWWAWbo&feature=youtu.be
2.MD.10 - Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems1using information presented in a bar graph.
http://www.ixl.com/math/grade-2/create-pictographs
http://www.ixl.com/math/grade-2/which-bar-graph-is-correct
http://www.harcourtschool.com/activity/lets_graph/
http://www.bbc.co.uk/schools/teachers/ks2_activities/maths/interpreting_data.shtml
http://nlvm.usu.edu/en/nav/frames_asid_190_g_1_t_1.html
http://www.studyzone.org/testprep/math4/d/pictograph4l.cfm
http://gwydir.demon.co.uk/jo/numbers/pictogram/pictogram.htm
http://www.studyzone.org/testprep/math4/e/readpicto3l.cfm
http://www.toytheater.com/fruit-fall.php
http://www.mrmaffesoli.com/Printables/2G1/2G1-LIM.pdf
http://www.thatquiz.org/tq-6/?&j=3&l=3&m=2kc0&n=35&p=0
http://www.thatquiz.org/tq-6/?&j=4&l=3&m=2kc0&n=35&p=0
http://www.sheppardsoftware.com/mathgames/earlymath/fractions_shoot.htm
http://resources.oswego.org/games/fractionflags/fractionflags.html
http://resources.oswego.org/games/fractionflags/ffthirds.html
http://www.harcourtschool.com/activity/cross_the_river/
Base 10 Addition Flashcards - http://www.mrmaffesoli.com/AdditionFlashcards.pdf
Base 10 Subtraction Flashcards – http://www.mrmaffesoli.com/SubtractionFlashcards.pdf
Addition and Subtraction Strategy sheets - great to send home for parents!
Solving a Subtraction problem.pdf
Solving an Addition problem.pdf
Strategies for Solving Subtraction problems.pdf
Videos for demonstrating some alternate algorithms: