Ms. Lizette's Nook

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Earth’s Resources

Last weekend, different nations celebrated Earth Day. I asked my students ,”Why do we celebrate Earth Day?” I received various answers like:
“ It’s special occasion about the Earth.”
“ We have to save the Earth.”
“ We do activities for the Earth.”
“It’s not Earth Day but Earth Hour.”

This celebration gave the students a better opportunity to make connections to the concepts that they have learned in the past weeks. The students have learned that the Earth’s atmosphere and resources have been supporting life, but because of human activities, man is slowly destroying it. Man has continuously relied on these resources in order to survive. As a result, some resources became limited. These resources are classified as non-renewable.

Global warming continuously haunts us. This was the very reason too that man acted to solve this problem. Man had to learn to live on Earth and take care of it like what our ancestors did. Science and technology paved the way to innovations. For example, man learned how make electricity using renewable resources such as the sun, wind, and water.

We had a lengthy discussion on different renewable resources. The weeks I can say are all worth it since the students themselves were very curious and engaged with the activities we did. They got to learn the latest technology in using solar power. They even got to design their own solar power home and compute the solar power system kilowatt system they will be needing for their homes. They kept abreast with the latest news on wind and hydropower.

The following are excerpts of the Solar Talk

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Getting Educated and Prepared

The unit on Rapid Changes to the Earth’s Surface got the students engaged, excited, and experts on these topics.
Earthquakes and volcanic eruptions are vague occurrences especially if you are located along the Pacific Ring of Fire. Not only are people expected to know such phenomena. Everyone should always be prepared.

First, the students learned how earthquakes occur and how volcanoes form. These all happen along tectonic plates. This laboratory exploration helped the students understand the Earth’s interior.

The tectonic plates are lie beneath the oceans and continents.

Tectonic plates discussionTectonic Plates discussion 2Tectonic plates 4
tectonic plates 2tectonic plates 1

Volcanoes have always been picture perfect scenes for nature lovers. The students learned that these magnificent landmarks are significantly related to earth’s geological history and continue to shape the earth’s surface.

Below is a short activity that the students participated in that showed how different kinds of volcanoes exhibit different kinds of activity.

volcano activity 1
volcanic activity 4
volcanic activity 2

The students learned that countries prepare for different calamities. Some structures are built to withstand earthquakes. We watched videos of experts who use technology and innovation to make structures that are earthquake-resistant.

The students examined the contents of our Go-Bags in the classroom.

They also prepared Earthquake Preparedness posters for school.Earthquake posterEarthquake poster 4Earthquake poster 2Earthquake poster 5Earthquake poster 6

The students themselves designed, planned and built their own earthquake resistant structures. They were lucky enough to have an expert give a short talk about structural engineering and give advice on the models that they made.
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[caption id="attachment_1460" align="aligncenter" width="300"]We tested the structures on our improvised Shake Table. We tested the structures on our improvised Shake Table.


Our guest, Engineer Legaspi, gave a short talk on structural engineering.

Our guest, Engineer Legaspi, gave a short talk on structural engineering.

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A Fraction a Day

Two weeks ago, I introduced Fractions. Their knowledge in Grade 3 will be reinforced this year focusing on fraction equivalence, addition and subtraction of fractions with same and different denominators, and multiplication of a whole number by a fraction. The students were able to see how fractions are used everyday. The class was broken into smaller groups, and each one was assigned to interview different people in school. They asked two questions, ” How do you use fractions in your line of work?” , and “How do you use fractions in your life?”

Here is what they found out:

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The students also had a chance to write their own examples of fractions everywhere.
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When learning about Fractions, students have to model them using concrete things and representations. One of the activities the students did was to model using tape diagrams or bar models. It is in this activity that students learn that fractions can be less that one whole, one whole or more than one whole. The students also decomposed fractions into sums of unit fractions.

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Last Valentines Day, the students wrote their own Fraction Poems to show their love for someone.

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  • http://www.deped.gov.ph/