Mathematics Grade 2 15 min

A.M. or P.M.

A.M. or P.M.

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1

Introduction & Learning Objectives

Learning Objectives Identify A.M. as the morning time. Identify P.M. as the afternoon and night time. Correctly label times with A.M. or P.M. Sort daily activities into A.M. and P.M. groups. Explain the difference between 12:00 A.M. (midnight) and 12:00 P.M. (noon). When you eat breakfast, is it the same time of day as when you see the stars? 🤔 We will learn about two parts of the day: A.M. and P.M. This helps us know if something happens in the morning or at night. Real-World Applications Knowing when your favorite cartoon is on TV 📺 Telling a friend when to come over and play 🤸 Understanding when school starts and ends 🏫 Knowing if it is time for breakfast or dinner 🥞
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Key Concepts & Vocabulary

TermDefinitionExample A.M.A.M. is the time from midnight until noon. It is the morning! ☀️You eat breakfast at 7:00 A.M. P.M.P.M. is the time from noon until midnight. It is the afternoon and night! 🌙You eat dinner at 6:00 P.M. NoonNoon is 12:00 in the middle of the day. It is when P.M. starts. 🕛Many schools have lunch or recess at 12:00 P.M. MidnightMidnight is 12:00 in the middle of the night. It is when A.M. starts. 🌃Most people are sleeping at 12:00 A.M. Day CycleA full day has 24 hours. It is split into an A.M. part and a P.M. part.A day starts at midnight (A.M.) and ends just before the next midnight (P.M.).
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Core Formulas

The A.M. Rule Time from 12:00 Midnight → 11:59 in the morning Use A.M. for any time after midnight and before noon. Think 'At Morning'. The P.M. Rule Time from 12:00 Noon → 11:59 at night Use P.M. for any time after noon and before midnight. Think 'Past Midday'.

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Sample Practice Questions

Challenging
A plane takes off at 10:00 P.M. on Tuesday. The flight is 5 hours long. What day and time does the plane land?
A.Tuesday at 3:00 P.M.
B.Wednesday at 3:00 P.M.
C.Wednesday at 3:00 A.M.
D.Tuesday at 3:00 A.M.
Challenging
A baker starts work at 2:00 A.M. He works for 9 hours straight. He then takes a 1-hour lunch break. Is it A.M. or P.M. when his lunch break *ends*?
A.It is A.M.
B.It is P.M.
C.It is exactly noon
D.It is exactly midnight
Challenging
It is currently 4:00 P.M. on Friday. What day and time was it 20 hours ago?
A.Friday at 8:00 A.M.
B.Thursday at 12:00 P.M.
C.Friday at 12:00 A.M.
D.Thursday at 8:00 P.M.

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