Adding and Subtracting Fractions with Unlike Denominators (Tinker) ^©

Description
Files

This lesson focuses on 5.NF.A.1 and 5.NF.A.2: Adding and subtracting fractions with unlike denominators. Students use models and equations to solve addition and subtraction word problems. Core Action 3 is strongly illustrated by 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