1. The document outlines a lesson plan for a 4th grade mathematics class on measuring mass using standard units.
2. Students will learn to accurately measure objects in grams and kilograms and identify the difference between the two units.
3. Assessment includes a real-world grocery store observation and measurement activity where students measure objects and answer questions to demonstrate their understanding.
6. Approximate Time Frame :
Starting February 24,2014 the
students will be able to measure the
mass of an object using standard
units until February 26,2014 and
show it to the class.
7. Stage 1 : Desired Results
Make measurement using standard units
and show accuracy in weighing and
measuring the mass of an object in a
real world situation like in marketing.
8. Established Goals :
• Understandings
Competencies learned in measuring objects
using standard units of mass measure applied
in a real world situation.
9. Essential Questions :
How do they know that the objects is
measured in grams and kilograms when
they use it in a real world situation when
they will go to a market / department store
or in buying.
10. Students will know…
1. How to measure accurately the mass of
an objects using standard units.
2. The difference between grams and
kilograms.
11. Students will be able to…
1. Learn how to use properly the weighing
scale.
2. Learn how to identify kilograms and grams.
3. Learn how to measure properly and
accurately.
12. Brief Summary of the Unit (Lesson) :
The students will be able to learned on how to
measured an objects correctly and accurately and they
will be able to identify the difference between grams
and kilograms. And they can already apply it in a real
life situation.
14. Direction :
The students will have their observation in a
grocery store/market, wherein they will
experience on how to measure the objects in
weighing scale and they will identify the
difference between grams and kilograms
using the mass or weight of the objects. And
will answer the following questions.
15. Answer the following questions:
1.How objects/products are being
measured?
2.Give examples of a products/objects that
are measured in grams and kilograms.
3.Explain the difference between grams
and kilograms.
16. A. Choose the correct weight of each object.
1. Peanuts 100g 100kg
2. Ring 50kg 50g
3. Ball 3g 300kg
4. Soap 3kg 30g
5. Watermelon 1kg 50g
17. B. Write the weight of the object in each picture.
1.
22. Have a pair of objects with one object heavier than the
others on the demonstration table.
Call on some pupils to go in front and weigh a pair of
objects in each of their hands.
Describe the mass or weight of the objects.
Ask:
Which is object is heavier? Lighter?
23. Show a picture of a weighing scale or a real one.
Ask:
Where do you usually see a weighing scale?
What are the things measured using the weighing scale?
How do you buy rice, etc.?
24. Let the students share the ideas about what is grams
and kilograms.
Kilogram- one thousand grams; the
basic unit of mass adopted under the
Systeme International d''Unites; "a
kilogram is approximately 2.2 pounds"
25. A gram is a unit of measure in the metric
system that equals one thousandth of a
kilogram.
• To convert from kg to grams multiply by 1,000.
Example:
10.5 kg is equals to:
10.5 x 1000 = 10,500 g.
• To convert from grams to kg divide by 1000
Example:
1000g = 1kg
1000/1000 = 1kilogram
26. Present the activity below and explain
how to measure the mass of an object.
Divide the class into 3 groups.
Provide each group with a weighing scale.
27. Each group will weigh a 15 bananas or any fruits
assigned to them.
Each group will record the mass of the objects they
weigh.
Record the results on the grid
.
OBJECTS WEIGH
1. 15 Bananas
2. 5 Apples
28. Answers the following questions :
1. What is the weight or mass of 15 bananas?
2. What is the weight or mass of 5 apples?
3. Do they have the same weight or mass? Why ?
Have the same discussions after the reporting of group leaders.
Did you get the same results? Why? What is measured using a
weighing scale?
What unit of measure did you use to get the mass or weight of
objects What is the difference between grams and kilograms?
29. Let the pupils group themselves into five
and perform the following activities:
Activity 1
1. Bring out your show me board.
2. Flashcards with illustration as shown below.
3. Write the mass of each object on the weighing scale
in grams/kilograms.
31. What standard unit you will use to measure the
mass of an objects?
Valuing :
Will you able to give the accurate weight in mass
of objects? How? Why is it importance to give
the accurate measurement of an object?
32. CONCLUSION
It is important to measured the object accurately and
precisely. Because once our data's aren’t measured
properly, our measurement would not be accurate
as they need to be.
