Cogito
Grade 1 Math · Chapter 9 · Lesson 8
Telling Time to the Hour
Read a clock when the long hand points straight up.
10 problems · about 13 minutes · 1.MD.B.3
What this lesson teaches
The child reads and writes o’clock times on both analog and digital clocks.
- The short hand tells the hour.
- Long hand straight up means o’clock.
- 3 o’clock is written 3:00.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
4 problemsReview — Fourths and Quarters: How many fourths make one whole?
Answer 4
Why 4 fourths make the whole.
Review — Halves: How many equal shares are in a half?
Answer 2
Why A half is one of 2 equal shares.
Review — Shapes Inside Shapes: How many triangles make one trapezoid?
Answer 3
Why A trapezoid is 3 triangles.
Review — Making New Shapes: How many triangles fill one hexagon?
Answer 6
Why It takes 6 triangles.
Warm Up
Straightforward practice. Get the method working first.
3 problemsShort hand on 4, long hand up. What hour?
Answer 4
Why It is 4 o’clock.
How is 6 o’clock written?
Answer 6:00
Why 6 o’clock is written 6:00.
Short hand on 5, long hand up. What hour?
Answer 5
Why The short hand tells the hour.
Build It Up
The same ideas with more to keep track of.
1 problemShort hand on 12, long hand up. What hour?
Answer 12
Why Both hands point up.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
2 problemsWhich hand tells the hour?
Answer The short hand.
Why The long one is for minutes.
School Starts: The short hand is on 9 and the long hand is up. What hour?
Answer 9 o’clock
Why It is 9 o’clock, written 9:00.