Math Websites ~ Grade 3 Unit 1
Click on a box below to find helpful websites to support the indicators taught in this unit. The indicators are color-coded and the websites numbered to assist teachers in directing students to the correct site. These websites are intended for the wide range of students in the grade, therefore some may tend to be easier and some more difficult. These web pages may contain links to one or more pages outside the MCPS Web. MCPS does not control the content or relevancy of these pages.

 General Math Sites 1. Rainforest Math has wonderful activities, K - 6: http://www.rainforestmaths.com/ 2. National Library of Math Manipulatives http://nlvm.usu.edu/en/nav/vlibrary.html 3. Illustrated Math Dictionary http://www.teachers.ash.org.au/jeather/maths/dictionary.html 4. Search through dozens and dozens of math websites for third graders http://www.internet4classrooms.com/skills_3rd_math.htm 4.3.1.1 gather and organize data from a variety of sources. 1. http://www.harcourtschool.com/activity/elab2004/gr3/25.html This is an elab.  Print the following worksheet for students. http://www.harcourtschool.com/activity/elab2004/G3_PE_PDF/MNL00LBPE3025.pdf 4.3.2.1 organize and display data using tables, pictographs, and bar graphs using appropriate scales, e.g., one symbol equals 100 units. 1. http://nlvm.usu.edu/en/nav/frames_asid_323_g_1_t_5.html 2. http://www.harcourtschool.com/activity/elab2004/gr3/26.html This is an elab.  Print the following worksheet for students. http://www.harcourtschool.com/activity/elab2004/G3_PE_PDF/MNL00LBPE3026.pdf 3. http://nces.ed.gov/nceskids/graphing/ 4. http://nlvm.usu.edu/en/nav/frames_asid_323_g_1_t_5.html 5. http://nlvm.usu.edu/en/nav/frames_asid_183_g_1_t_5.html?open=activities 6. http://illuminations.nctm.org/ActivityDetail.aspx?ID=63 64.3.3.1 interpret and compare data from tables, pictographs, and bar graphs. 1. Reading bar graphs http://66.216.68.87/activities/cgi-bin/mchoicepage?mc_m1_002 2. http://www.quizville.com/usingBarGraphs.php 1.3.1.1 identify, describe, extend, and create a variety of non-numeric patterns. 1.3.1.2 identify, describe, extend, and create a variety of numeric patterns. 1. http://www.oswego.org/ocsd-web/games/SplatSquares/splatsq100.html 2. http://www.harcourtschool.com/activity/elab2004/gr3/15.html This is an E-Lab.  You will need to print out the following student sheet: http://www.harcourtschool.com/activity/elab2004/G3_PE_PDF/MNL00LBPE3015.pdf 3. http://www.oswego.org/ocsd-web/games/spookyseq/spookycb2.html 4. 5. Go to Sequences http://www.crickweb.co.uk/Flash%20Studio/cfsmaths/Toolkit/Toolkit.htm 6.3.5.2 subtract two- and three-digit numbers with regrouping. 1. multi-digit addition for review http://nlvm.usu.edu/en/nav/frames_asid_154_g_1_t_1.html 2. 2digit by 2digit with regrouping http://www.harcourtschool.com/activity/show_me/e234.htm In English http://www.harcourtschool.com/activity/show_me/s234.htm In Spanish 3. Subtraction of 3digit numbers with regrouping http://www.harcourtschool.com/activity/elab2004/gr3/4.html This is an elab.  Print the following worksheet for students http://www.harcourtschool.com/activity/elab2004/G3_PE_PDF/MNL00LBPE3004.pdf 4. Virtual Base Ten Subtraction http://nlvm.usu.edu/en/nav/frames_asid_155_g_1_t_1.html 5. Subtraction facts http://nlvm.usu.edu/en/nav/frames_asid_326_g_3_t_1.html 6. http://www.iknowthat.com/com/L3?Area=EarlyMathWorkbench Go to addition or subtraction. When prompted to register, click "Maybe Later." This site is wonderful for modeling addition, subtraction and regrouping. 7. http://nlvm.usu.edu/en/nav/frames_asid_209_g_1_t_1.html This site is good for modeling regrouping between ones, tens and hundreds. 6.3.5.5 estimate sums and differences of whole numbers less than 1,000. 1. http://www.oswego.org/ocsd-web/games/Estimate/estimate.html 2. Rounding to the nearest ten http://www.aaamath.com/est32-round10.html 3. http://www.aaamath.com/B/est.htm 6.3.1.3 express three- and four-digit numbers in expanded notation. 1. http://atschool.eduweb.co.uk/toftwood/arrowcards.html 2. http://www.crickweb.co.uk/Flash%20Studio/cfsmaths/Toolkit/Toolkit.htm Go to Place Value Calculator andVirtual Place Value Cards 3. http://www.aaamath.com/B/g21b_px1.htm 4. http://www.aaamath.com/B/g21d_px1.htm 5. http://mrsbogucki.com/aemes/resource/apps/placeval/placeval.htm 6. http://www.mathcats.com/explore/age/placevalueparty.html 7. http://www.aaamath.com/B/g21e_px1.htm 8. http://www.freemathtest.com/FreeMathTest.asp?C=Place%20Values&MIN=1000&MAX=9999 6.3.1.1 read and write the word names for numbers to 10,000. 1. http://www.linkslearning.org/Kids/1_Math/2_Illustrated_Lessons/3_Place_Value/index.html 2. http://www.dositey.com/addsub/Mystery10.htm 3. http://www.mathcats.com/explore/reallybignumbers.html 6.3.2.2 compare and order whole numbers through 10,000. 1. http://www.harcourtschool.com/activity/elab2004/gr3/2.html This is an E-Lab.  You will need to print out the following student sheet: http://www.harcourtschool.com/activity/elab2004/G3_PE_PDF/MNL00LBPE3002.pdf 2. http://nlvm.usu.edu/en/nav/frames_asid_152_g_1_t_1.html 3. http://pbskids.org/cyberchase/games/numbersense/machine.html

 Also, you can print out parent newsletters from MCPS that give an overview of each unit (Kindergarten through Grade 5). The newsletters are translated into Chinese, French, Korean, Spanish and Vietnamese.