Marshmallow Worlds

We are continuing to learn more about 3-D solids and have been building models of them using toothpicks and marshmallows. Students are learning about the number of vertices or corners (marshmallows) and edges (toothpicks) on each 3-D solid. They are working in groups to make "Marshmallow Worlds" including zoos, boats, cities and castles.

Ask your child what his/her group is building and what 3-D solids he/she built for this project.

Big Dig

  

 

We bought the Dinosaur Dig off a Scholastic order. We got it because keep on buying things for the class from Scholastic. We had tally marks and we had a bunch of stuff if we were going to choose anything: Sponge Bob, Scooby Doo, but the Big Dig had more tally marks.

We were looking for the bones of the dinosaur and then we took them out.

We used tools to dig the bones out and under the bone, there was the picture of the bone in the sand. We used a special kind of hammer to hammer some of the sand.

When we found some of the bones then when we were digging for bones we saw a bump and when we opened it it was different because it looked like all the bones together but we only found one. They were all separate.

There were two different parts of the dinosaur, the head and the body. First we dug the body and we found lots of pieces and after you find all the pieces you use all the pieces and make the dinosaur.

I was the one who washed all the bones off and I was starting to build it and I only got a little bit far because you need to glue gun it.

When we were making them we saw some fossils and we didn't even notice they were in there and when people were breaking the rocks, some people were breaking the fossils too.

3-D Solids

 

We have gone on a hunt around the school for real life objects that resemble the 3-D solids we are learning about: cubes, spheres, cylinders, cones, prisms and pyramids. We learned that rectangular prisms are by far the easiest to find. We had to venture into the gym cupboard to find a greater variety of 3-D solids!

Students have been tracing the sides or flat surfaces of the 3-D blocks we have in the classroom. We have learned that a sphere has no flat sides and a cone has only one.

We have also been sorting the shapes. For example, let's put all of the solids with square faces in this group and all of the solids with triangular faces in this group... Are there some solids that belong in both groups?

Now look for 3-D solids at home! (Note: The "cuboid" should be called a "rectangular prism".)