Lesson 11

The purpose of this lesson is for students to tell time with an analog clock using the words half past, quarter past, and quarter till.

In grade 1, students learned to tell and write time to the hour and half-hour. They related representations of time to the half-hour on analog clocks to circles partitioned into halves. In previous lessons, students partitioned shapes, including circles, into halves and quarters.

In this lesson, students connect their understanding of partitioning a circle into equal pieces to using the words “half past,” “quarter past,” and “quarter till” to tell time (MP2). Some students may already be familiar with telling time to the nearest 5-minute increments. If they read a clock as 4:15 rather than quarter past 4, ask if they can find another way to state the time using these phrases.

• Gather an analog clock (large wall clock or a Judy clock) or video of an analog clock that can be used to demonstrate the movement of the hour hand as the minute hand moves round the clock face in the activity synthesis. Video: https://vimeo.com/454805326

• Create a set of cards from the blackline master for each group of 2. 

What connections did students make between partitioning circles into halves and quarters and identifying halves and quarters of the clock? How did these connections allow students to more easily tell time using “half past,” “quarter after,” and “quarter till?”