Showing posts with label skills. Show all posts
Showing posts with label skills. Show all posts

Saturday, March 28, 2020

Science Grade 7 Rock Layers with Geologic Time Scale Model

Making a model using simple kitchen sponges, paper, and 2 small toy dinosaurs


An important emphasis in science is giving the students opportunities to create models. During a chapter about formation of rock layers (after learning about the 3 types of rocks), I set some time in our schedule for groups of 3 to 4 students to create a rock layer model based on the type of tiny plastic toy dinosaurs (2) were randomly given to them. [This was with 7th graders and made about 2 months ago, maybe...I'm thinking end of January to first week or so in February...]

This [identifying dinosaurs] required a quick online search and then referral to the text copy of the GTS. Does the dinosaur belong to the Jurassic, Cretaceous, other period? If both are from the same millions of  years span or different ones, where were they to be placed? They were instructed to use the sponges as thick layers and have at least 2 thin layers [shown] using sections of yellow copy paper. Sponges were to be labeled on at least 1 side.

The models aren't very glamorous but they were effective in students working together to ask questions and solve the mysteries of which eons were going to be represented:


Students didn't really understand the connection between the fossil record and the geologic time scale until creating this model. 

What are your hands-on visualized ways to help students cognitively start comprehending in some small way the enormity of how the Earth was made?

Teaching and learning in the USA heartland,
Becca S

aka Mrs. S. or Mrs. Sadler


Thursday, March 26, 2020

Science Concept Two Parts of Earth Surface Activity for Younger Students

Earth's Surface Has Two Main Parts of Land and Water


With Earth Day approaching in about a month, I prepared a matching activity to be part of a series of indoor and outdoor activities divided between what's on land and what's in water for kindergarteners.

Explaining concepts to youngsters need to be kept simple. For Earth Day I like to concentrate for the ECE level on the 2 colors green and blue--green for land and blue for water. By 1st or 2nd grade, using the word continents and islands instead of land might make a bit more sense than those in kindergarten. Same for differentiating between ocean water or river or pond...for little ones, water is water.

So an easy way to transition youngsters on this new way to distinguish blue from green to designate water from land, prepare a simple page and matching cut-outs like the ones shown in the photo:




The number four was picked as enough spots to place on a single sheet of blue cardstock. A heart was stenciled on and outlined in marker with 'LOVE' written in it and then 'We' written to the left side with 'Earth' on the right. Four different patterned papers were used to trace and cut out 2 circles from each design. One set were glued on the traced spots and the other set were mounted to white cardstock circles for extra durability.

The sheet was placed in a plastic sheet protector. As you work with a small group of children at a table or give a mini lesson before placing this in a science center, share with the students that the blue represents large ocean water and the green paper spots are representing islands/land (small amounts of land). They need to find each islands matching island.

Visually and representationally the very basic earth science concept about parts of the Earth's surface can be learned.

Being able to match 1-to-1 is a basic math counting/number skill.

Other idea to expand on the Earth's 2 surface parts of water and land:
a. sensory bin or bowl containing blue and green shredded paper or colored rice can be the massive amount with small items like blue and green marbles can be what children need to find; add math skill of sorting/categorizing by having blue and green small bowls or cups for the kids to place the miniature lakes (blue) and islands (green) into.

Extend to creatures that live in water and those that live on land:
b. outdoors/gross motor: have a blue tarp laid on the ground for the water and a green military tarp or shower curtain laid out for land. Take items from the classroom or maybe some prepared magazine pics or internet printed images glued to cardstock/file folder cut-outs. Students stand around the outside edges and take turns coming to get a picture/item to toss onto the correct colored tarp. Two shared early science and math skills are making observations and sorting/classifying. And science concepts are now extending past the Earth's two surface areas to include recognizing animals that live predominantly in each area.
Example: a stuffed animal dolphin gets tossed onto the blue tarp
Example: a stuffed animal bunny gets tossed onto the green tarp

If your facility has an indoor gym or large open classroom floor space, this could be done inside.

Enjoy helping children of all ages learn more about our Earth.

Life Science Plant Specimen Dissection or Separation of Parts by a 6th grader

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