Grade 1 study

What is a defining attribute of a shape?

Some features tell you the shape's name. Like how many sides and corners. Color, size, and which way it faces do not change the name.

How can you put smaller shapes together to make a larger shape?

You can put small shapes together to make a bigger shape.. Put two triangles together along a long side. You can make a rectangle.

Is this true? It is not true that A flat shape, like a circle drawn on paper, has no thickness.

No. A flat shape, like a circle drawn on paper, has no thickness. A solid shape, like a ball or a box, takes up space. You can hold a solid shape.

What does it mean to split a shape into equal parts?

When a shape is divided into equal parts, each piece is exactly the same size and shape. This is the foundation of understanding fractions.

What are halves and how do you make them?

A half is one of two equal parts of a whole.. Two matching pieces make halves. If one piece is bigger, they are not halves.

Is this true? A fourth is one of four equal parts.

Yes. Fold in half, then half again. Four matching pieces are fourths.

Match each prompt to its fact.

What is a defining attribute of a shape? → Some features tell you the shape's name. Like how many sides and corners.; How can you put smaller shapes together t… → You can put small shapes together to make a bigger shape.; How is a three-dimensional shape differen… → A flat shape, like a circle drawn on paper, has no thickness.; What does it mean to split a shape into e… → When a shape is divided into equal parts, each piece is exactly the same size and shape.

Put these ideas in lesson order.

defining attribute → compose shapes → three-dimensional shape → equal parts