Time
Outcome: Students will be able to read and differentiate analog, digital and 24 hour time.
Digital and Analog time
Time of the day
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Telling time: Digital and analog
Using term Half and quarter
Half past
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Quarter past
Quarter past and quarter to
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Telling time: Quarter past, Half past, and Quarter to
Digital to analog and analog to digital
Adding and subtracting time
AM and PM
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24 hour clock
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Converting from 12 hour times to 24 hour clock
The following simple steps will help you change a 12 hour time to a 24 hour time.
Examples
For am For pm
1:45am = 01:45 1:45pm = 13:45
4:20am = 04:20 4:20pm = 16:20
11:32am = 11:32 11:32pm = 23:32
12:07am = 00:07 12:07pm = 12:07
- For am- the hour does not change. If it is less than 10, then add a zero before the digit. Format hh:mm
- If the hour is a pm time, then simply add 12 to the hour. Minutes stay the same.
- If the hour is exactly 12pm, then simply remove the 'pm' label.
- If the hour is 12am, then change it to 00.
Examples
For am For pm
1:45am = 01:45 1:45pm = 13:45
4:20am = 04:20 4:20pm = 16:20
11:32am = 11:32 11:32pm = 23:32
12:07am = 00:07 12:07pm = 12:07
Converting from 24 hour times to 12 hour times
The following simple steps will help you change a 24 hour time to a 12 hour time with 'am' and 'pm'.
The minutes and seconds never change when changing between 24 hour and 12 hour times.
Examples:
Hour less than 12
02:12 = 2:12am
09:24 = 9:24am
00:45 = 12:45am
Hour more than 12:
14:36 = 2:36pm
17:48 = 5:48pm
12:15 = 12:15pm
20:36 = 8:36pm
23:56 = 11:56pm
- If the hour is less than 12, simply label it as an am time and take away any leading zeros. Example: 02:12 = 2:12am
- If the hour is greater than 12, then simply subtract 12 from the hour and label it as a pm time. Example: 14:36 = 2:36 pm
- If the hour is exactly 12, then simply label it as a pm time.
- If the hour is 00, then change it to 12 and label it as an am time.
The minutes and seconds never change when changing between 24 hour and 12 hour times.
Examples:
Hour less than 12
02:12 = 2:12am
09:24 = 9:24am
00:45 = 12:45am
Hour more than 12:
14:36 = 2:36pm
17:48 = 5:48pm
12:15 = 12:15pm
20:36 = 8:36pm
23:56 = 11:56pm
Turn to your pair and discuss how to convert 24 hour time to 1 hour time.
Let's show : work sheet
Elapsed time
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Worksheets
If you are done the worksheets make a cue card challenge for your pair. Write an elapsed time problem for your pair on a cue card and write the answer at the back. Your pair should have a card challenge for you too. Exchange the cards and solve the problem. See who can find the correct answer first.
Calander
Outcome: Students will be able to read and record calendar dates in a variety of formats.
Let's have a look at a calendar-
Henry turns 13 years old on February 24. If the date was January 18th, how many days until his birthday? Hint: January has 31 days.
Measurement
Measuring: Comparing, Estimating
Meters, CM and MM
Outcome: Students will understand and determine the area of regular and irregular shapes.
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Why do we measure?
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CM, Metre and KM
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How to measure?
Perimeter
Finding prrimeter
Did you know? Greek 'peri' means around and 'meter' means measure.
Perimeter word problem worksheets
Home connection
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Area
Outcome: Students will be able to measure area of regular and irregular 2-D shapes.
Lesson: Area of a shape
Objectives: Students recognize that area is measured in square units.
Students will be able to estimate and measure area, using referents for cm2 or m2 .
Students will be able to estimate and measure area, using referents for cm2 or m2 .
Activity:
Material: A piece of paper and square units.
Find out how many square units fit on the paper.
So, the area of the paper is ..................... square units.
So, the area of the paper is ..................... square units.
Let's practice-
Lesson: Area of a Rectangle
Let's review-
If the square unit is 1 cm square- (cm2)
Math Think:
Is there any shorter way to find the area?
Can we make a formula for area (of a rectangle)?
Can we make a formula for area (of a rectangle)?
Let's use the formula
Show answer on your personal board ( don't forget the square unit)
Area = L x W square unit
Area = L x W square unit
If you're finished early: Draw some rectangles in your sketch book and measure area.
Assessment sheet
Home connection: Practice Mathletics MEASUREMENT
Lesson: Area and Perimeter of a Rectangle
Objectives:
- Students will be able to understand the difference of area and perimeter and
- Students will be able to measure area and perimeter of rectangles.
Class discussion: Area and perimeter- can you tell the difference?
Perimeter is AROUND
Area is INSIDE
Area is INSIDE
Think Math- and show your answer with hand sign
Mr. Choudhary wanted to build a fence around the school field. Mr. Elhamalawy wanted to buy a carpet for school musallah. What does Mr. C need to measure? Area or perimeter?
What does Mr. E need to measure? Area or perimeter?
What does Mr. E need to measure? Area or perimeter?
Hamza wanted to put ribbon around the class bulletin board. Amna wanted to cover the bulletin board with blue construction paper.
What does Amna need to measure?Area or perimeter? What does Hamza need to measure?Area or perimeter?
Think-Pair talk:
Think of a real life situation that requires measuring area. (1 min)
Turn to your pair beside you and share your situation. (1 min)
Let's Practice: (6 mins)
Station Activity: (and assessment)
Expectations:
1. 3 minutes for each station. 30 seconds to tidy up.
2. You need to work in a team. You help your team members and get help from your team.
3. Voice level maximum 2.
4. Talk only math talk.
5. Their are some bonus works at each station. Start bonus work if you still have some time left.
6. At the end when you are done all 4 stations go to your desk and wait for collectors.
7. I will be assessing you while you're doing your activity.
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Let's have a quick look.
Let's have a self assessment-
Home connection