1 2 3 4 5 6 Standards Skills Concepts Through a Cognitive Sample Activity Included Included in Particular Context Demand/ in Standard Levels of Standard Thinking C-6.EE.4 Identify equivalent (No context) Understand Scott and Dennis rent scooters on their vacation. Identify when two expressions are expressions Island Scooters charges a $20 flat fee for each equivalent (i.e., when the two expressions scooter and .05 per mile (m). They ride for 20 name the same number regardless of miles and return the scooters. Scott used the which value is substituted into them). For expression 2(20+.05m) to determine the cost of example, the expressions y + y + y and 3y the rides. When he gets his receipt, the are equivalent because they name the expression the cashier used is 20(2 +.05). Did same number regardless of which number Scott pay the correct amount? What if they rode y stands for. 15 miles, whose expression would work each time? Why?
1 Standards 2 Skills Included in Standard 3 Concepts Included in Standard 4 Through a Particular Context 5 Cognitive Demand/ Levels of Thinking 6 Sample Activity C-6.EE.4 Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them). For example, the expressions y + y + y and 3y are equivalent because they name the same number regardless of which number y stands for. Identify equivalent expressions (No context) Understand Scott and Dennis rent scooters on their vacation. Island Scooters charges a $20 flat fee for each scooter and .05 per mile (m). They ride for 20 miles and return the scooters. Scott used the expression 2(20+.05m) to determine the cost of the rides. When he gets his receipt, the expression the cashier used is 20(2 +.05). Did Scott pay the correct amount? What if they rode 15 miles, whose expression would work each time? Why?