Addition & Subtraction Word Problems (Scott) ^©

Description
Files

The students in this lesson utilized a variety of tools to solve, illustrate, and write an equation for addition and subtraction word problems with 20. The word problems involved situations of adding to, taking from, putting together, and taking apart, with unknowns in various positions. Some of the problems called for addition of three whole numbers whose sum was less than or equal to 20. The students worked with partners to solve grade-level problems.

Addresses standards: 1.OA.A.1, 1.OA.A.2

This video was annotated using this version of the Instructional Practice Guide (IPG). A current version of the IPG is available here.

Fatal error: Uncaught ErrorException: Array and string offset access syntax with curly braces is deprecated in /mnt/stor9-wc1-dfw1/627046/www.achievethecore.org/web/content/Raven/Client.php:316 Stack trace: #0 /mnt/stor9-wc1-dfw1/627046/www.achievethecore.org/web/content/Slim/Slim.php(126): Slim\Slim::handleErrors(8192, 'Array and strin...', '/mnt/stor9-wc1-...', 316, Array) #1 /mnt/stor9-wc1-dfw1/627046/www.achievethecore.org/web/content/Slim/Slim.php(126): require() #2 [internal function]: Slim\Slim::autoload('Raven_Client') #3 /mnt/stor9-wc1-dfw1/627046/www.achievethecore.org/web/content/index.php(1271): spl_autoload_call('Raven_Client') #4 [internal function]: {closure}(Object(ErrorException)) #5 /mnt/stor9-wc1-dfw1/627046/www.achievethecore.org/web/content/Slim/Slim.php(640): call_user_func_array(Object(Closure), Array) #6 /mnt/stor9-wc1-dfw1/627046/www.achievethecore.org/web/content/Slim/Slim.php(622): Slim\Slim->callErrorHandler(Object(ErrorException)) #7 /mnt/stor9-wc1-dfw1/627046/www.achievethecore.org/web/conten in /mnt/stor9-wc1-dfw1/627046/www.achievethecore.org/web/content/Raven/Client.php on line 316