elapsed time
DESCRIPTION
Elapsed Time. Mathematics Common Core 3.MD.1 Grade 3 Mindy Godwin July 15, 2013. Objective Using a number line, learners will be able to determine elapsed time by identifying starting, ending, and in-between times of activities. Common Core Mathematics Standard - PowerPoint PPT PresentationTRANSCRIPT
PowerPoint Presentation
Elapsed TimeMathematicsCommon Core 3.MD.1Grade 3
Mindy GodwinJuly 15, 2013
Incorrect! Try Again
Content 1.1: DefinitionWhat is elapsed time? Lets define it!The time that has passed between two eventsORThe difference between two timesALSOThe time that can be measured between the beginning and the end of an activity
Jack ate his lunch in 12 minutes. He finished at 12:26 pm. What time did he begin eating?12:15 pm12:21 pm12:14 pm12:07 pm
Content 1.2: Base-60Reminder: Time is counted in base-60. There are sixty minutes in every hour!We cannot do vertical subtraction using base-10 to find elapsed time. Can we find another way?
Content 1.3: The Number LineStartBegin9:00 amBase-60Hour10:00 amFinishEnd10:15 am+60 minutes+15 minutesElapsed Time: 75 mins. OR 1 hour, 15 mins.Content 1.4: Real-World SituationsCan you think of any real-world situations where elapsed time is important?What about baking a cake?What about getting ready before school?Elapsed Time Video
Melanies volleyball game started at 1:00 pm and ended at 2:45 pm. How long did the game last?1 hour, 15 minutes1 hour, 45 minutes2 hours2 hours, 45 minutes
Mrs. Taylors science class lasts for 50 minutes. If it starts at 10:10 am, what time will class be over?11:00 am12:00 pm10:40 am11:10 am
A frozen pizza takes 14 minutes to cook. Adam placed a pizza in the oven at 1:27 pm. What time should he take the pizza out of the oven?1:41 pm1:53 pm1:38 pm2:01 pm
Julia needs to read a book for 20 minutes. What time should she begin reading if she wants to finish at 4:15 pm?4:00 pm3:45 pm3:55 pm3:50 pm
Referencesdonaldsonm. (2010, June 1). Elapsed Time. Retrieved from SMARTExchange: http://exchange.smarttech.com/details.html?id=d657b291-ac40-4a5b-a4d9-9bf574e680fcEverette, M. (2013, January 11). Teaching Elapsed Time: Strategies That Work. Retrieved from Scholastic: http://www.scholastic.com/teachers/top-teaching/2013/01/teaching-elapsed-time-strategies-workScholastic. (2013). Measurement: Elapsed Time. Retrieved from StudyJamz: http://studyjams.scholastic.com/studyjams/jams/math/measurement/elapsed-time.htm