In first grade students learned to tell time to the hour and half hour. They also learned to read and write time as indicated on analog and digital clocks. Second grade teachers extend this knowledge by helping students make a connection between counting by 5’s and telling time to the nearest five minute intervals on an analog and a digital clock (Georgia Department of Education, 2017).
1. Facilitate students creating a number line on the board using 12 five segment strips. Students color their own pre-made strips (attached) (Georgia Department of Education, 2017). They will need two strips of each color: red, yellow, green, blue, and orange. Students will cut these out.
Call on volunteers to put segments on the board. Ask, “How many groups of 5 do we have on the board?” Also ask, “How many cubes do we have on the board?
Teachers should continue this process until all 12 segments are on the board. Ask students:
a. How many groups of five make up thirty?
b. Point to different increments and ask students to count up to that block by 5’s.
2. The teacher shows a large pre-made clock face to students. Ask how many numbers are on the clock. Point out the minute hand and explain that the minute hand on the clock can count by 5’s. Review the hour hand.
Ask students if the number line we made on the board is like a clock. Discuss.
3. Ask volunteers to help move the strips to create a circle so that it looks like a clock. Students have now fashioned a transitional clock that demonstrates the number of cubes to form an hour, and the number of cubes to form minutes.
Tape an hour hand and a minute hand on the clock. Model telling time for students.
1. Break students into small groups of 3 to 4 students. Allow groups to make their own clocks on the floor with the strips they have colored. Provide hour and minute hands. Give each group construction paper, markers, and scissors to make clock numbers.
2. After groups complete their clock allow them to work together to complete a practice page (attached) on reading the time on a clock. They may use their group clock to help them. The teacher should circulate to each group to determine understanding. This is a formative assessment.
Read the book, “Telling Time: How to Tell Time on Digital and Analog Clocks!” by Jules Older, to the class. This book describes the idea of time, using seconds, minutes, and hours on analog and digital clocks. The story provides time-telling opportunities for students.