Irreversible changes, like burning, cannot be undone. Reversible changes, like melting and dissolving can be changed back again.
Mixture can be separated out by methods like filtering and evaporating. Experiment on ; Irreversible changes, Reversible changes, Dissolving and separating mixtures.
COULD DO
What happened to the Salt if add with water? What the substance called after the process?
SHOULD DO
Chocolate is the reversible changes category, state the process of the changes based on experiment.
MUST DO
Can we separate the mixtures of sand and gravel? What we use to separated the mixture?
Magnet have two poles; North Pole and South Pole. North poles and South Poles attracted each other. But two North poles or two South Poles will repel each other.
Magnet attracted to metal like Iron. Magnet will not attracted to non-magnetic materials such as aluminium, copper or gold are not magnetic.
When a spring is stretched or squashed it created a force.
In the experiment 2, the experimenter has joined the pipe to Nitrogen Gas and put the end of the pipe in the beaker that contain water. What happened to the water after he released the Nitrogen gas in 5 minutes?
Should Do
In experiment 1, he do three stages of cooking the chicken eggs with different durations. First he cooked egg for 1 minute, Second he cooked egg for 2 minutes and the Third he cooked egg in 3 minutes. What happened to all the eggs?
Brown Recluse Spider is probably the most dangerous spider in the world. A person can die from it's bite. A story about a guy in USA bitten by the Brown Recluse Spider on his hand.Spider bites are dangerous and can have permanent and highly negative consequences.
More details : http://www.hoax-slayer.com/brown-recluse.html
2. Pupils able to categorize thing or object into group.
3. Enter the name in the categories boxes.
4. Able to put number in each categories.
LEARNING OUTCOME
1. Able to count the total number of things.
2. Describe the number in each column of the table using the form.
3. Corresponding items within each category into the Pie Chart text box.
4. Able to make decision by select the higher total number of votes.
5. Students describe results of group decisions using the pie chart.
6. Students able to link percentage amounts to fractions, and vice versa.
WHAT IS PIE CHART
A pie chart is used to demonstrate a group of data in appearance or other places where the facts of the data set are not essential. Its best utility comes when trying to contrast various data peaks as a percentage of an entire. Because of its restricted capacity, it is seen more in business than technical applications. Most spreadsheet programs contain the capability to create pie charts, but it is simple to do by hand for little sets of data.
Example of Pie Chart
USING THE ONLINE NATIONAL LIBRARY OF VIRTUAL MANIPULATIVES APPLICATION
Step 1:
1.Brainstorm the students, how many colours are there you can see surrounding you?
Answers: Could be any answers from pupils.
Step 2 :
2.Ask students, what colours can you find in the classroom
Using MS Word, Draw a table with 7 columns and 2 rows. List each colours category in the table form to get the number of student favourite colours. Describe the number in each column of the table using the form. Collect votes from the pupils for each category.
Red
Blue
Yellow
Green
Pink
Purple
Orange
5
6
4
2
8
1
3
Step 5:
Using Online NATIONAL LIBRARY OF VIRTUAL MANIPULATIVES APPLICATION
Step 1: Open the application. Click on Data Analysis and Probability
Step 2: Click on Pie Chart button link.
Step 3:
The Pie Chart screen appeared. Enter the name of the categories and corresponding items within each category into the Pie Chart text box. Generate a chart that displays percentages within each category.
Step 4: Enter the number for each category in number boxes.
Step 5: Click on Draw Chart button to create the Pie Chart. Show total number fraction in percentage.
MANUAL WAY OF TEACHING
If the school don’t have electricity supplied, other alternative by use teaching aids materials. But to show the Pie chart example, the teacher need to prepare the material earlier to avoid time wasted. Fix the number of fraction and the category (measurable).
Teaching aids:
1.Manila Card (Draw a big circle)
2.Colour papers (Cut the paper follow the number of percentage)
