Number Strings (Frakes) ©

  • Description
  • Files

This lesson focuses on 2.OA.A.1 - solving one-step comparing word problems using mental strategies. Students choose a previously learned strategy, share their thinking with a partner, and then selected students explain and chart their thinking for the whole group. Core Action 1 is clearly evident in this lesson.

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