http://www.linktolearning.com
Click on the Mathematics icon and the Math 3 Under the Sea link to go to:
http://www.learnalberta.ca/content/me3us/flash/index.html?launch=true
ChooseAddition or Subtraction
Also: Addition with Regrouping
Subtraction with Regrouping
Click on the crystals to start an interactive activity. Students can do
the operation and enter the digits to show their calculations.
National Library of Virtual Manipulatives
http://nlvm.usu.edu/en/nav/topic_t_1.html
Base Blocks Addition – use base ten blocks to model grouping in addition
Students group (lasso) ones to make a tens rod and move it to the tens column.
Base Blocks Subtraction – use base ten blocks to model separation of groups in
subtraction. Students can move (regroup) a tens rod into the ones column in order to
subtract.
http://www.aplusmath.com/flashcards/index.html
Choose Advanced Addition, Subtraction, Multiplication and Division
Select addition and subtraction problems for two and 3 digit addition and subtraction.
Mathisfun.com
http://www.mathsisfun.com/numbers/index.html
Instructions for the operations and worksheets to print off
http://www.ixl.com/math/grade/third/
many games and activities for skills students learn in the third grade organized into
categories including: Addition, Subtraction, Place Value…
Tuesday 21 September 2010
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