Unit 6, Lesson 11
Tell Time with Halves and Quarters
Grade 2
Preparation
Lesson Narrative
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 interval. 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.
- Representation
- MLR8
- Determine (orally) the time shown on an analog clock and express the time, using the phrases “half past,” “quarter past,” and “quarter till.”
- Match partitioned circles and phrases (“half past,” “quarter past,” or “quarter till”) that represent the same time on an analog clock.
- Let’s tell time with halves and quarters.
Required Materials
Warm-up
Required Preparation
- Gather an analog clock (a large wall clock or a Judy Clock) or a video of an analog clock that can be used to demonstrate the movement of the hour hand as the minute hand moves around 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 students.
Teacher Reflection Questions
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?”